Mark H. Thiemens: Difference between revisions

Mark H. Thiemens
Mark H. Thiemens
Born	St Louis, Mo, United States
Education	B.S. Univ. Miami, M.S. Old Dominion University, PhD. Florida State University Miami
Known for	Discovery of mass independent isotope chemistry and applications across nature in space and time, origin of life, climate change and physical chemistry of isotope effects
Spouse	Nasrin Marzban
Children	Maxwell Marzban Thiemens, Lillian Marzban Thiemens
Awards	Royal Society Foreign Member; Goldschmidt Medal; E.O. Lawrence Medal; Leonard Medal; Members of National Academy Science and American Academy Arts and Science; Asteroid named in honor: (7004) Markthiemens
	Scientific career
Fields	Physical chemistry of isotope effects,; Solar system origin and evolution,; Lunar and planetary science,; Climate change,; Origin and evolution of life;
Institutions	University of California San Diego

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Mark Howard Thiemens is a distinguished professor and the John Doves Isaacs Endowed Chair in Natural Philosophy of Physical Sciences in the department of chemistry and biochemistry at the University of California San Diego.^[1] He is best known for the discovery of a new physical chemical phenomenon termed the mass independent isotope effect.^[2]

His studies have crossed a broad range of topics including basic physical and quantum chemistry, Solar System origin, tracking the origin and evolution of life on early Earth; stratospheric chemistry, climate change and greenhouse gas identification, Mars atmospheric chemistry, past and future and isotope geochemistry. His work combines photochemical isotope studies, both laboratory and synchrotron based, field work in the South Pole,^[3] Greenland Summit and the Tibetan Himalayas^[4] for climate and geological sampling across China for early Earth rock records.

His non-isotope work has included discovery of an unknown source of the greenhouse gas nitrous oxide that lead the global industrial elimination of all emissions, a major contribution to changing global climate change.^[5] Thiemens has worked on developing new imaging techniques for space mission return samples^[6]^[7]^[8]^[9]^[10]^[11]^[12] and detection of superconductivity in nature.^[13]

Education

Thiemens earned his bachelor of Science degree from the University of Miami. His studies with isotope geochemist Cesare Emiliani, PhD student of Harold Urey and a co-discoverer of paleoclimate temperature determination stimulated his interests in isotopes. Thiemens received a MS from Old Dominion University and PhD from Florida State University for his research using stable isotopes and particle identification using the FSU Van de Graff accelerator. He moved to the University of Chicago at the Enrico Fermi Institute for Nuclear Studies (1977-1980) where he worked with Robert N. Clayton using lunar samples to track solar wind origin and evolution, meteorite cosmochemistry, and early atmospheric chemistry.

Career

Thiemens moved to the department of chemistry at the University of California San Diego in 1980, where he was hired as an assistant professor as a replacement for Hans Seuss and took over the laboratory of Nobel Laureate Harold Urey. He was promoted to full professor in 1989, and served as the chair of the department of chemistry and biochemistry from 1996-1999. He was the founding dean of the division of physical sciences and served from 1999-2016.

Research

Thiemens research at UCSD initiated after a rebuild of the Urey isotope ratio mass spectrometer to allow measurement of both oxygen isotope ratios (¹⁸O/¹⁶O, ¹⁷O/¹⁶O). His first publication as an assistant professor reported in Science the first mass independent isotope effect which occurred during ozone formation. This was the first demonstration of a chemical process that could alter isotope ratios in a manner independently of mass difference.^[14] Most strikingly was that the pattern of mass independent and the ¹⁷O/¹⁶O,¹⁸O/¹⁶O variation varied equally and reproduced the same pattern observed in primitive inclusions of the Allende carbonaceous chondritic meteorite.^[15] The underlying assumption for the inclusions anomaly deriving from a nucleosynthetic component was incorrect and new models for early Solar System formation were needed and have evolved since. Much of Thiemens research has been dedicated to experimentally exploring the relevant fractionation processes that may account for the observations; including synchrotron photodissociation effects in CO.^[16]^[17]^[18] The gas to particle formation process of the first solids in the nebula have also experimentally been shown to produce the mass independent anomaly.^[19] Meteoritic material studies of Thiemens in sulfur isotopes have shown that sulfonic acids from chondritic meteorites have shown that photochemical processes have been important contributor to their molecular synthesis^[20] as well other sulfur species.^[21] To interpret mass independent isotope effects during photodissociation, Thiemens has worked in collaboration with Raphy Levine of Hebrew University^[22]^[23] to interpret mass independent isotope effects during photodissociation and better explore the fundamental chemical physics of the processes. The understanding of the basis of the ozone effect has been extensively studied by Nobel Laureate Rudy Marcus and catalyzed deeper insight into the chemical physics.^[24]^[25]

Thiemens has worked broadly on understanding the Earth system. Thiemens and Trogler^[26] identified a source of 10% of the increasing emissions of nitrous oxide, a greenhouse gas with a radiative forcing 200 times CO₂ on a per molecules basis and a 100 year plus lifetime with unidentified sources. It was shown that the manufacture of adipic acid, used in nylon production is a globally important source. In the year post publication, a global inter industry consortium banded together to eliminate all N2O emissions, with far reaching climate impact.^[5]

Thiemens work in atmospheric chemistry has had extensive impact. The atmospheric chemistry of oxygen isotopes has been used to define atmospheric ozone surface reactions on Mars across billion-year time scales^[27] and the oxygen isotopic carbonate record on Mars has been measured to deepen insight into reservoir mixing.^[28]^[29] Terrestrial atmospheric carbonate aerosol oxygen isotopic measurements allow heterogenous reaction chemistry in both atmospheres to be resolved.^[30] Mass independent sulfur isotopes in Mars meteorites were used to show ultra violet SO₂ photochemical reactions in the past Martian atmosphere.^[31]

The Mars sulfur observations lead to one of the most important applications of the isotope effects. In the present Earth's atmosphere, the need for UV light to carry out SO₂ photodissociation does not allow occurrence in today's lower atmosphere because of stratospheric ozone screening of UV light, but in a reduced oxygen atmosphere UV should pass through. Measurement of sulfur isotopes in the Earths earliest rock record revealed that large and variable mass independent sulfur isotope effects occur in ³³S/³²S, ³⁶S/³²S ratios,^[32] as observed in Mars meteorites and laboratory experiments.^[33] The short atmospheric lifetime of SO₂ photochemistry is produced only with lowered O₂-O₃ level. For first time, oxygen levels in the earliest Earth could be determined.^[34]^{[circular reference]} The sulfur work is widely used to track the origin and evolution of life.

Present day sulfur isotopic anomalies in sulfate from Antarctic and Greenland ice have been used to determine the influence of massive volcanoes on the stratosphere.^[35] Samples from a snow pit dug by Thiemens and colleagues have shown that there exist sources of sulfur chemistry that need to be included in studies of the atmosphere today and in the early Earth.^[36]

The inclusion of radiogenic ³⁵S with the 4 stable sulfur isotopes have further enhanced mechanistic details of the contributors to the fractionation processes in the pre Cambrium era and today.^[37] An atmospheric sulfur anomaly is observed in diamonds and uniquely tracks atmosphere-mantle mixing dynamics on billion-year time scales.^[38]

Thiemens has used oxygen isotopes to study oxygen chemistry of the stratosphere and mesosphere using a rocket borne cryogenic whole air sampler.^[39]^[40] The intersection of O(¹D) from ozone photolysis exchange with CO₂ and passes the isotopic anomaly to be used as a tracer. The small effect in the O₂ is removed by the process of photosynthesis and respiration^[41] and allows a new, highly sensitive way to quantify global primary productivity (GPP) in the world's oceans and, from oxygen trapped in ice cores across long time periods.

Using mass independent oxygen isotopes Thiemens and colleagues have applied them to further identify N₂O sources. Thiemens developed the ability to measure naturally produced ³⁵S (87-day half-life) to provide the first trans Pacific atmospheric Fukushima emissions and calculate the reactor neutronicity.^[42]^[43] Recently the method determined melting rates of the Tibetan Himalayan glaciers, the source of drinking water of 40% of the Earth's population.^[44] Thiemens has recently shown with his colleagues the first detection of superconductivity in nature, in this case in meteorites.^[13]

Service

Besides his service as Chair and Dean, Thiemens has been active in external service:

Board of directors, San Diego State University Research Foundation, 2006-2009
City of San Diego Science Advisory Board (2002-2005)
San Diego Natural History Museum Board of Trustees (2001-2006)
San Diego Chamber of Commerce Environmental Advisory Board 1998-1999.
ECO AID Board of Advisors (1999-2002)
Science Advisory Board. Office of Trade and Business Development. San Diego (2002)
Kyoto Prize Symposium San Diego organizing committee, UCSD Lead. 2006-2016.
Council, The Meteoritical Society, 2008-2011.
Committee on the Significance of International Transport of Air Pollutants (2008-2009) National Research Council. (Global Sources of Local Pollution Report)
Understanding the Impact of Selling the Helium Reserve (2008-2009). National Research Council (Selling the Nations Helium Reserve Report) National Research Council
Planetary Protection Committee. Mars Sample Return (2008-2009). National Research Council (Assessment of Planetary Protection for Mars Sample Return Mission)
Committee for Planetary Protection Standards for Icy Bodies in the Outer Solar System (2011) National Research Council
Board on Energy and Environmental Systems 2009-2016. National Academy of Sciences.
Searching for Life Across Space and Time. (2016-2017). Space Science Board Requested study.
Space Sciences Board (2014–present). National Academy of Sciences
Executive committee, Space Sciences Board (2018—present) National Academy of Sciences.
Associate editor, Proceedings National Academy of Sciences, 2007 to present. National Academy of Sciences

Honors

Dreyfus Foundation Teacher- Scholar Award (1986)
Alexander Von Humboldt Fellows Award (1990)
Alexander Von Humboldt Award (1993)
Elected, Fellow of the Meteoritical Society (1996)
Ernest O. Lawrence Medal, Department of Energy (1998)
Chancellors Associates Endowed Chair (1999–present)
American Chemical Society (San Diego) Distinguished Scientist of the year (2002)
Elected, Fellow, American Academy of Arts and Sciences (2002)
Distinguished Alumni Award, Old Dominion University (2003)
Press Club Headliner of the Year 2002 (2003)
Selected, San Diego City Beat, 33 People to Watch in 2003 (2003)
Creative Catalyst Award, UCSD-TV (2003)
Elected, Phi Beta Kappa (2005)
Elected, National Academy of Sciences (2006)
Minor Planet Named in his Honor: Asteroid (7004) Markthiemens. International Astronomical Union (2006).^[45]
Elected, Fellow American Geophysical Union (2006).
Elected, Fellow, Geochemical Society (2007)
Elected, Fellow, European Association for Geochemistry (2007)
Graduate Made Good, Distinguished Alumni, Omega Delta Kappa Honor Society, Florida State University (2007)
V.M. Goldschmidt Medal; The Geochemical Society. Awarded in Davos, Switzerland (2009)
Selected one of 100 Distinguished Graduates in 100 years of Florida State University History (2010).
Cozzarelli Prize, U.S. National Academy of Sciences for outstanding paper in Physical Sciences in the Proceedings of the National Academy of Sciences (2011).
Elected Fellow, American Association Arts and Sciences (2013).
Albert Einstein Professor, Chinese Academy of Sciences (2014).
Leonard Medal of the Meteoritical Society (2017)
Miller Visiting Professor, University California Berkeley (2017)
Gauss Professorship, Göttingen Academy of Sciences, Germany (2017)
Gauss Professorship, Göttingen Academy of Sciences, Germany (2020)
Foreign Member, Royal Society (2024)

References

^ "Thiemens, Mark". Chemistry and Biochemistry. 1980-01-01. Retrieved 2023-07-03.
^ "Mark Thiemens".
^ "In The Pits: Scientists Dig Through South Pole Snow For Climate Clues" (Press release). UC San Diego. March 1, 2013. Retrieved May 22, 2020.
^ "Scientists Go to Great Heights to Understand Changes in Earth's Atmosphere" (Press release). UC San Diego. June 18, 2018. Retrieved May 22, 2020.
^ ^a ^b "SCIENCE WATCH; The Nylon Effect". The New York Times. 26 February 1991.
^ "Nanoscale infrared spectroscopy as a non-destructive probe of extraterrestrial samples".
^ Dai, S.; Fei, Z.; Ma, Q.; Rodin, A. S.; Wagner, M.; McLeod, A. S.; Liu, M. K.; Gannett, W.; Regan, W.; Watanabe, K.; Taniguchi, T.; Thiemens, M.; Dominguez, G.; Neto, A. H. Castro; Zettl, A.; Keilmann, F.; Jarillo-Herrero, P.; Fogler, M. M.; Basov, D. N. (7 March 2014). "Tunable Phonon Polaritons in Atomically Thin van der Waals Crystals of Boron Nitride". Science. 343 (6175): 1125–1129. Bibcode:2014Sci...343.1125D. doi:10.1126/science.1246833. hdl:1721.1/90317. PMID 24604197. S2CID 4253950.
^ Fei, Z.; Rodin, A. S.; Andreev, G. O.; Bao, W.; McLeod, A. S.; Wagner, M.; Zhang, L. M.; Zhao, Z.; Thiemens, M.; Dominguez, G.; Fogler, M. M.; Neto, A. H. Castro; Lau, C. N.; Keilmann, F.; Basov, D. N. (July 2012). "Gate-tuning of graphene plasmons revealed by infrared nano-imaging". Nature. 487 (7405): 82–85. arXiv:1202.4993. Bibcode:2012Natur.487...82F. doi:10.1038/nature11253. PMID 22722866. S2CID 4348703.
^ Dominguez, Gerardo; Mcleod, A. S.; Gainsforth, Zack; Kelly, P.; Bechtel, Hans A.; Keilmann, Fritz; Westphal, Andrew; Thiemens, Mark; Basov, D. N. (9 December 2014). "Nanoscale infrared spectroscopy as a non-destructive probe of extraterrestrial samples". Nature Communications. 5 (1): 5445. Bibcode:2014NatCo...5.5445D. doi:10.1038/ncomms6445. PMID 25487365.
^ Dai, S.; Ma, Q.; Andersen, T.; Mcleod, A. S.; Fei, Z.; Liu, M. K.; Wagner, M.; Watanabe, K.; Taniguchi, T.; Thiemens, M.; Keilmann, F.; Jarillo-Herrero, P.; Fogler, M. M.; Basov, D. N. (22 April 2015). "Subdiffractional focusing and guiding of polaritonic rays in a natural hyperbolic material". Nature Communications. 6 (1): 6963. arXiv:1502.04094. Bibcode:2015NatCo...6.6963D. doi:10.1038/ncomms7963. PMC 4421822. PMID 25902364.
^ Fei, Z.; Rodin, A. S.; Gannett, W.; Dai, S.; Regan, W.; Wagner, M.; Liu, M. K.; McLeod, A. S.; Dominguez, G.; Thiemens, M.; Castro Neto, Antonio H.; Keilmann, F.; Zettl, A.; Hillenbrand, R.; Fogler, M. M.; Basov, D. N. (November 2013). "Electronic and plasmonic phenomena at graphene grain boundaries". Nature Nanotechnology. 8 (11): 821–825. arXiv:1311.6827. Bibcode:2013NatNa...8..821F. doi:10.1038/nnano.2013.197. PMID 24122082. S2CID 494891.
^ Dai, S.; Ma, Q.; Liu, M. K.; Andersen, T.; Fei, Z.; Goldflam, M. D.; Wagner, M.; Watanabe, K.; Taniguchi, T.; Thiemens, M.; Keilmann, F.; Janssen, G. C. a. M.; Zhu, S.-E.; Jarillo-Herrero, P.; Fogler, M. M.; Basov, D. N. (August 2015). "Graphene on hexagonal boron nitride as a tunable hyperbolic metamaterial". Nature Nanotechnology. 10 (8): 682–686. arXiv:1501.06956. Bibcode:2015NatNa..10..682D. doi:10.1038/nnano.2015.131. PMID 26098228. S2CID 205452562.
^ ^a ^b
Wampler, James; Thiemens, Mark; Cheng, Shaobo; Zhu, Yimei; Schuller, Ivan K. (7 April 2020). "Superconductivity found in meteorites". Proceedings of the National Academy of Sciences. 117 (14): 7645–7649. Bibcode:2020PNAS..117.7645W. doi:10.1073/pnas.1918056117. PMC 7148572. PMID 32205433.
- Cynthia Dillon (March 24, 2020). "Scientists observe superconductivity in meteorites". Phys.org.
^ Thiemens, M. H.; Heidenreich, J. E. (4 March 1983). "The Mass-Independent Fractionation of Oxygen: A Novel Isotope Effect and Its Possible Cosmochemical Implications". Science. 219 (4588): 1073–1075. Bibcode:1983Sci...219.1073T. doi:10.1126/science.219.4588.1073. PMID 17811750. S2CID 26466899.
^ Clayton, R. N.; Grossman, L.; Mayeda, T. K. (2 November 1973). "A Component of Primitive Nuclear Composition in Carbonaceous Meteorites". Science. 182 (4111): 485–488. Bibcode:1973Sci...182..485C. doi:10.1126/science.182.4111.485. PMID 17832468. S2CID 22386977.
^ "New Clues to Oxygen at the Origin of the Solar System".
^ Chakraborty, S.; Ahmed, M.; Jackson, T. L.; Thiemens, M. H. (5 September 2008). "Experimental Test of Self-Shielding in Vacuum Ultraviolet Photodissociation of CO". Science. 321 (5894): 1328–1331. Bibcode:2008Sci...321.1328C. doi:10.1126/science.1159178. PMID 18772432. S2CID 713105.
^ Chakraborty, Subrata; Davis, Ryan D.; Ahmed, Musahid; Jackson, Teresa L.; Thiemens, Mark H. (14 July 2012). "Oxygen isotope fractionation in the vacuum ultraviolet photodissociation of carbon monoxide: Wavelength, pressure, and temperature dependency". The Journal of Chemical Physics. 137 (2): 024309. Bibcode:2012JChPh.137b4309C. doi:10.1063/1.4730911. PMID 22803538. S2CID 7312120.
^ "Scientists solve mystery of odd patterns of oxygen in solar system's earliest rocks".
^ Cooper, George W.; Thiemens, Mark H.; Jackson, Teresa L.; Chang, Sherwood (22 August 1997). "Sulfur and Hydrogen Isotope Anomalies in Meteorite Sulfonic Acids". Science. 277 (5329): 1072–1074. Bibcode:1997Sci...277.1072C. doi:10.1126/science.277.5329.1072. hdl:2060/19980038124. PMID 9262469.
^ Rai, V. K. (12 August 2005). "Photochemical Mass-Independent Sulfur Isotopes in Achondritic Meteorites". Science. 309 (5737): 1062–1065. Bibcode:2005Sci...309.1062R. doi:10.1126/science.1112954. PMID 16099982. S2CID 26306652.
^ Muskatel, B. H.; Remacle, F.; Thiemens, M. H.; Levine, R. D. (24 March 2011). "On the strong and selective isotope effect in the UV excitation of N2 with implications toward the nebula and Martian atmosphere". Proceedings of the National Academy of Sciences. 108 (15): 6020–6025. Bibcode:2011PNAS..108.6020M. doi:10.1073/pnas.1102767108. PMC 3076819. PMID 21441106.
^ Chakraborty, S.; Muskatel, B. H.; Jackson, T. L.; Ahmed, M.; Levine, R. D.; Thiemens, M. H. (29 September 2014). "Massive isotopic effect in vacuum UV photodissociation of N2 and implications for meteorite data". Proceedings of the National Academy of Sciences. 111 (41): 14704–14709. Bibcode:2014PNAS..11114704C. doi:10.1073/pnas.1410440111. PMC 4205658. PMID 25267643.
^ Gao, Y. Q. (31 May 2001). "Strange and Unconventional Isotope Effects in Ozone Formation". Science. 293 (5528): 259–263. Bibcode:2001Sci...293..259G. doi:10.1126/science.1058528. PMID 11387441. S2CID 867229.
^ "Rudolph A. (Rudy) Marcus | Division of Chemistry and Chemical Engineering".
^ Thiemens, M. H.; Trogler, W. C. (22 February 1991). "Nylon Production: An Unknown Source of Atmospheric Nitrous Oxide". Science. 251 (4996): 932–934. Bibcode:1991Sci...251..932T. doi:10.1126/science.251.4996.932. PMID 17847387. S2CID 22090514.
^ Farquhar, J. (5 June 1998). "Atmosphere-Surface Interactions on Mars: 17O Measurements of Carbonate from ALH 84001". Science. 280 (5369): 1580–1582. doi:10.1126/science.280.5369.1580. PMID 9616116.
^ "New chemical analysis of ancient Martian meteorite provides clues to planet's history of habitability".
^ Shaheen, Robina; Niles, Paul B.; Chong, Kenneth; Corrigan, Catherine M.; Thiemens, Mark H. (13 January 2015). "Carbonate formation events in ALH 84001 trace the evolution of the Martian atmosphere". Proceedings of the National Academy of Sciences. 112 (2): 336–341. Bibcode:2015PNAS..112..336S. doi:10.1073/pnas.1315615112. PMC 4299197. PMID 25535348.
^ Shaheen, R.; Abramian, A.; Horn, J.; Dominguez, G.; Sullivan, R.; Thiemens, M. H. (8 November 2010). "Detection of oxygen isotopic anomaly in terrestrial atmospheric carbonates and its implications to Mars". Proceedings of the National Academy of Sciences. 107 (47): 20213–20218. Bibcode:2010PNAS..10720213S. doi:10.1073/pnas.1014399107. PMC 2996665. PMID 21059939.
^ Farquhar, James; Savarino, Joel; Jackson, Terri L.; Thiemens, Mark H. (March 2000). "Evidence of atmospheric sulphur in the martian regolith from sulphur isotopes in meteorites". Nature. 404 (6773): 50–52. Bibcode:2000Natur.404...50F. doi:10.1038/35003517. PMID 10716436. S2CID 731902.
^ Farquhar, J. (4 August 2000). "Atmospheric Influence of Earth's Earliest Sulfur Cycle". Science. 289 (5480): 756–758. Bibcode:2000Sci...289..756F. doi:10.1126/science.289.5480.756. PMID 10926533.
^ Farquhar, James; Savarino, Joel; Airieau, Sabine; Thiemens, Mark H. (25 December 2001). "Observation of wavelength-sensitive mass-independent sulfur isotope effects during SO photolysis: Implications for the early atmosphere". Journal of Geophysical Research: Planets. 106 (E12): 32829–32839. Bibcode:2001JGR...10632829F. doi:10.1029/2000JE001437.
^ Great Oxidation Event
^ Baroni, M.; Thiemens, M. H.; Delmas, R. J.; Savarino, J. (5 January 2007). "Mass-Independent Sulfur Isotopic Compositions in Stratospheric Volcanic Eruptions". Science. 315 (5808): 84–87. Bibcode:2007Sci...315...84B. doi:10.1126/science.1131754. PMID 17204647. S2CID 40342760.
^ Shaheen, R.; Abaunza, M. M.; Jackson, T. L.; McCabe, J.; Savarino, J.; Thiemens, M. H. (4 August 2014). "Large sulfur-isotope anomaly in nonvolcanic sulfate aerosol and its implications for the Archean atmosphere". Proceedings of the National Academy of Sciences. 111 (33): 11979–11983. Bibcode:2014PNAS..11111979S. doi:10.1073/pnas.1406315111. PMC 4143030. PMID 25092338.
^ Lin, Mang; Zhang, Xiaolin; Li, Menghan; Xu, Yilun; Zhang, Zhisheng; Tao, Jun; Su, Binbin; Liu, Lanzhong; Shen, Yanan; Thiemens, Mark H. (21 August 2018). "Five-S-isotope evidence of two distinct mass-independent sulfur isotope effects and implications for the modern and Archean atmospheres". Proceedings of the National Academy of Sciences. 115 (34): 8541–8546. Bibcode:2018PNAS..115.8541L. doi:10.1073/pnas.1803420115. PMC 6112696. PMID 30082380.
^ Farquhar, J. (20 December 2002). "Mass-Independent Sulfur of Inclusions in Diamond and Sulfur Recycling on Early Earth". Science. 298 (5602): 2369–2372. Bibcode:2002Sci...298.2369F. doi:10.1126/science.1078617. PMID 12493909. S2CID 22498879.
^ "Air Samples Show Ozone Depletion May Have Other Causes Than Fluorocarbons". Associated Press.
^ Thiemens, M. H.; Jackson, T.; Zipf, E. C.; Erdman, P. W.; van Egmond, C. (10 November 1995). "Carbon Dioxide and Oxygen Isotope Anomalies in the Mesosphere and Stratosphere". Science. 270 (5238): 969–972. Bibcode:1995Sci...270..969T. doi:10.1126/science.270.5238.969. S2CID 98076813.
^ Luz, Boaz; Barkan, Eugeni; Bender, Michael L.; Thiemens, Mark H.; Boering, Kristie A. (August 1999). "Triple-isotope composition of atmospheric oxygen as a tracer of biosphere productivity". Nature. 400 (6744): 547–550. Bibcode:1999Natur.400..547L. doi:10.1038/22987. S2CID 4345679.
^ "Tracking the radiation released from Fukushima | Earth | EarthSky". 15 August 2011.
^ Priyadarshi, A.; Dominguez, G.; Thiemens, M. H. (15 August 2011). "Evidence of neutron leakage at the Fukushima nuclear plant from measurements of radioactive 35S in California". Proceedings of the National Academy of Sciences. 108 (35): 14422–14425. Bibcode:2011PNAS..10814422P. doi:10.1073/pnas.1109449108. PMC 3167508. PMID 21844372.
^ Lin, Mang; Wang, Kun; Kang, Shichang; Thiemens, Mark H. (15 March 2017). "Simple Method for High-Sensitivity Determination of Cosmogenic 35S in Snow and Water Samples Collected from Remote Regions". Analytical Chemistry. 89 (7): 4116–4123. doi:10.1021/acs.analchem.6b05066. PMID 28256822.
^ "Minor Planet Named for UCSD Science Dean". Photonics.com. 2006-08-22. Retrieved 2020-07-31.

External links

[1] "Thiemens, Mark". Chemistry and Biochemistry. 1980-01-01. Retrieved 2023-07-03.

[2] "Mark Thiemens".

[3] "In The Pits: Scientists Dig Through South Pole Snow For Climate Clues" (Press release). UC San Diego. March 1, 2013. Retrieved May 22, 2020.

[4] "Scientists Go to Great Heights to Understand Changes in Earth's Atmosphere" (Press release). UC San Diego. June 18, 2018. Retrieved May 22, 2020.

[SCIENCE_WATCH;_The_Nylon_Effect-5] "SCIENCE WATCH; The Nylon Effect". The New York Times. 26 February 1991.

[6] "Nanoscale infrared spectroscopy as a non-destructive probe of extraterrestrial samples".

[7] Dai, S.; Fei, Z.; Ma, Q.; Rodin, A. S.; Wagner, M.; McLeod, A. S.; Liu, M. K.; Gannett, W.; Regan, W.; Watanabe, K.; Taniguchi, T.; Thiemens, M.; Dominguez, G.; Neto, A. H. Castro; Zettl, A.; Keilmann, F.; Jarillo-Herrero, P.; Fogler, M. M.; Basov, D. N. (7 March 2014). "Tunable Phonon Polaritons in Atomically Thin van der Waals Crystals of Boron Nitride". Science. 343 (6175): 1125–1129. Bibcode:2014Sci...343.1125D. doi:10.1126/science.1246833. hdl:1721.1/90317. PMID 24604197. S2CID 4253950.

[8] Fei, Z.; Rodin, A. S.; Andreev, G. O.; Bao, W.; McLeod, A. S.; Wagner, M.; Zhang, L. M.; Zhao, Z.; Thiemens, M.; Dominguez, G.; Fogler, M. M.; Neto, A. H. Castro; Lau, C. N.; Keilmann, F.; Basov, D. N. (July 2012). "Gate-tuning of graphene plasmons revealed by infrared nano-imaging". Nature. 487 (7405): 82–85. arXiv:1202.4993. Bibcode:2012Natur.487...82F. doi:10.1038/nature11253. PMID 22722866. S2CID 4348703.

[9] Dominguez, Gerardo; Mcleod, A. S.; Gainsforth, Zack; Kelly, P.; Bechtel, Hans A.; Keilmann, Fritz; Westphal, Andrew; Thiemens, Mark; Basov, D. N. (9 December 2014). "Nanoscale infrared spectroscopy as a non-destructive probe of extraterrestrial samples". Nature Communications. 5 (1): 5445. Bibcode:2014NatCo...5.5445D. doi:10.1038/ncomms6445. PMID 25487365.

[10] Dai, S.; Ma, Q.; Andersen, T.; Mcleod, A. S.; Fei, Z.; Liu, M. K.; Wagner, M.; Watanabe, K.; Taniguchi, T.; Thiemens, M.; Keilmann, F.; Jarillo-Herrero, P.; Fogler, M. M.; Basov, D. N. (22 April 2015). "Subdiffractional focusing and guiding of polaritonic rays in a natural hyperbolic material". Nature Communications. 6 (1): 6963. arXiv:1502.04094. Bibcode:2015NatCo...6.6963D. doi:10.1038/ncomms7963. PMC 4421822. PMID 25902364.

[11] Fei, Z.; Rodin, A. S.; Gannett, W.; Dai, S.; Regan, W.; Wagner, M.; Liu, M. K.; McLeod, A. S.; Dominguez, G.; Thiemens, M.; Castro Neto, Antonio H.; Keilmann, F.; Zettl, A.; Hillenbrand, R.; Fogler, M. M.; Basov, D. N. (November 2013). "Electronic and plasmonic phenomena at graphene grain boundaries". Nature Nanotechnology. 8 (11): 821–825. arXiv:1311.6827. Bibcode:2013NatNa...8..821F. doi:10.1038/nnano.2013.197. PMID 24122082. S2CID 494891.

[12] Dai, S.; Ma, Q.; Liu, M. K.; Andersen, T.; Fei, Z.; Goldflam, M. D.; Wagner, M.; Watanabe, K.; Taniguchi, T.; Thiemens, M.; Keilmann, F.; Janssen, G. C. a. M.; Zhu, S.-E.; Jarillo-Herrero, P.; Fogler, M. M.; Basov, D. N. (August 2015). "Graphene on hexagonal boron nitride as a tunable hyperbolic metamaterial". Nature Nanotechnology. 10 (8): 682–686. arXiv:1501.06956. Bibcode:2015NatNa..10..682D. doi:10.1038/nnano.2015.131. PMID 26098228. S2CID 205452562.

[pmid32205433-13] Wampler, James; Thiemens, Mark; Cheng, Shaobo; Zhu, Yimei; Schuller, Ivan K. (7 April 2020). "Superconductivity found in meteorites". Proceedings of the National Academy of Sciences. 117 (14): 7645–7649. Bibcode:2020PNAS..117.7645W. doi:10.1073/pnas.1918056117. PMC 7148572. PMID 32205433.
Cynthia Dillon (March 24, 2020). "Scientists observe superconductivity in meteorites". Phys.org.

[14] Cynthia Dillon (March 24, 2020). "Scientists observe superconductivity in meteorites". Phys.org.

[14] Thiemens, M. H.; Heidenreich, J. E. (4 March 1983). "The Mass-Independent Fractionation of Oxygen: A Novel Isotope Effect and Its Possible Cosmochemical Implications". Science. 219 (4588): 1073–1075. Bibcode:1983Sci...219.1073T. doi:10.1126/science.219.4588.1073. PMID 17811750. S2CID 26466899.

[15] Clayton, R. N.; Grossman, L.; Mayeda, T. K. (2 November 1973). "A Component of Primitive Nuclear Composition in Carbonaceous Meteorites". Science. 182 (4111): 485–488. Bibcode:1973Sci...182..485C. doi:10.1126/science.182.4111.485. PMID 17832468. S2CID 22386977.

[16] "New Clues to Oxygen at the Origin of the Solar System".

[17] Chakraborty, S.; Ahmed, M.; Jackson, T. L.; Thiemens, M. H. (5 September 2008). "Experimental Test of Self-Shielding in Vacuum Ultraviolet Photodissociation of CO". Science. 321 (5894): 1328–1331. Bibcode:2008Sci...321.1328C. doi:10.1126/science.1159178. PMID 18772432. S2CID 713105.

[18] Chakraborty, Subrata; Davis, Ryan D.; Ahmed, Musahid; Jackson, Teresa L.; Thiemens, Mark H. (14 July 2012). "Oxygen isotope fractionation in the vacuum ultraviolet photodissociation of carbon monoxide: Wavelength, pressure, and temperature dependency". The Journal of Chemical Physics. 137 (2): 024309. Bibcode:2012JChPh.137b4309C. doi:10.1063/1.4730911. PMID 22803538. S2CID 7312120.

[19] "Scientists solve mystery of odd patterns of oxygen in solar system's earliest rocks".

[20] Cooper, George W.; Thiemens, Mark H.; Jackson, Teresa L.; Chang, Sherwood (22 August 1997). "Sulfur and Hydrogen Isotope Anomalies in Meteorite Sulfonic Acids". Science. 277 (5329): 1072–1074. Bibcode:1997Sci...277.1072C. doi:10.1126/science.277.5329.1072. hdl:2060/19980038124. PMID 9262469.

[21] Rai, V. K. (12 August 2005). "Photochemical Mass-Independent Sulfur Isotopes in Achondritic Meteorites". Science. 309 (5737): 1062–1065. Bibcode:2005Sci...309.1062R. doi:10.1126/science.1112954. PMID 16099982. S2CID 26306652.

[22] Muskatel, B. H.; Remacle, F.; Thiemens, M. H.; Levine, R. D. (24 March 2011). "On the strong and selective isotope effect in the UV excitation of N2 with implications toward the nebula and Martian atmosphere". Proceedings of the National Academy of Sciences. 108 (15): 6020–6025. Bibcode:2011PNAS..108.6020M. doi:10.1073/pnas.1102767108. PMC 3076819. PMID 21441106.

[23] Chakraborty, S.; Muskatel, B. H.; Jackson, T. L.; Ahmed, M.; Levine, R. D.; Thiemens, M. H. (29 September 2014). "Massive isotopic effect in vacuum UV photodissociation of N2 and implications for meteorite data". Proceedings of the National Academy of Sciences. 111 (41): 14704–14709. Bibcode:2014PNAS..11114704C. doi:10.1073/pnas.1410440111. PMC 4205658. PMID 25267643.

[24] Gao, Y. Q. (31 May 2001). "Strange and Unconventional Isotope Effects in Ozone Formation". Science. 293 (5528): 259–263. Bibcode:2001Sci...293..259G. doi:10.1126/science.1058528. PMID 11387441. S2CID 867229.

[25] "Rudolph A. (Rudy) Marcus | Division of Chemistry and Chemical Engineering".

[26] Thiemens, M. H.; Trogler, W. C. (22 February 1991). "Nylon Production: An Unknown Source of Atmospheric Nitrous Oxide". Science. 251 (4996): 932–934. Bibcode:1991Sci...251..932T. doi:10.1126/science.251.4996.932. PMID 17847387. S2CID 22090514.

[27] Farquhar, J. (5 June 1998). "Atmosphere-Surface Interactions on Mars: 17O Measurements of Carbonate from ALH 84001". Science. 280 (5369): 1580–1582. doi:10.1126/science.280.5369.1580. PMID 9616116.

[28] "New chemical analysis of ancient Martian meteorite provides clues to planet's history of habitability".

[29] Shaheen, Robina; Niles, Paul B.; Chong, Kenneth; Corrigan, Catherine M.; Thiemens, Mark H. (13 January 2015). "Carbonate formation events in ALH 84001 trace the evolution of the Martian atmosphere". Proceedings of the National Academy of Sciences. 112 (2): 336–341. Bibcode:2015PNAS..112..336S. doi:10.1073/pnas.1315615112. PMC 4299197. PMID 25535348.

[30] Shaheen, R.; Abramian, A.; Horn, J.; Dominguez, G.; Sullivan, R.; Thiemens, M. H. (8 November 2010). "Detection of oxygen isotopic anomaly in terrestrial atmospheric carbonates and its implications to Mars". Proceedings of the National Academy of Sciences. 107 (47): 20213–20218. Bibcode:2010PNAS..10720213S. doi:10.1073/pnas.1014399107. PMC 2996665. PMID 21059939.

[31] Farquhar, James; Savarino, Joel; Jackson, Terri L.; Thiemens, Mark H. (March 2000). "Evidence of atmospheric sulphur in the martian regolith from sulphur isotopes in meteorites". Nature. 404 (6773): 50–52. Bibcode:2000Natur.404...50F. doi:10.1038/35003517. PMID 10716436. S2CID 731902.

[32] Farquhar, J. (4 August 2000). "Atmospheric Influence of Earth's Earliest Sulfur Cycle". Science. 289 (5480): 756–758. Bibcode:2000Sci...289..756F. doi:10.1126/science.289.5480.756. PMID 10926533.

[33] Farquhar, James; Savarino, Joel; Airieau, Sabine; Thiemens, Mark H. (25 December 2001). "Observation of wavelength-sensitive mass-independent sulfur isotope effects during SO photolysis: Implications for the early atmosphere". Journal of Geophysical Research: Planets. 106 (E12): 32829–32839. Bibcode:2001JGR...10632829F. doi:10.1029/2000JE001437.

[34] Great Oxidation Event

[35] Baroni, M.; Thiemens, M. H.; Delmas, R. J.; Savarino, J. (5 January 2007). "Mass-Independent Sulfur Isotopic Compositions in Stratospheric Volcanic Eruptions". Science. 315 (5808): 84–87. Bibcode:2007Sci...315...84B. doi:10.1126/science.1131754. PMID 17204647. S2CID 40342760.

[36] Shaheen, R.; Abaunza, M. M.; Jackson, T. L.; McCabe, J.; Savarino, J.; Thiemens, M. H. (4 August 2014). "Large sulfur-isotope anomaly in nonvolcanic sulfate aerosol and its implications for the Archean atmosphere". Proceedings of the National Academy of Sciences. 111 (33): 11979–11983. Bibcode:2014PNAS..11111979S. doi:10.1073/pnas.1406315111. PMC 4143030. PMID 25092338.

[37] Lin, Mang; Zhang, Xiaolin; Li, Menghan; Xu, Yilun; Zhang, Zhisheng; Tao, Jun; Su, Binbin; Liu, Lanzhong; Shen, Yanan; Thiemens, Mark H. (21 August 2018). "Five-S-isotope evidence of two distinct mass-independent sulfur isotope effects and implications for the modern and Archean atmospheres". Proceedings of the National Academy of Sciences. 115 (34): 8541–8546. Bibcode:2018PNAS..115.8541L. doi:10.1073/pnas.1803420115. PMC 6112696. PMID 30082380.

[38] Farquhar, J. (20 December 2002). "Mass-Independent Sulfur of Inclusions in Diamond and Sulfur Recycling on Early Earth". Science. 298 (5602): 2369–2372. Bibcode:2002Sci...298.2369F. doi:10.1126/science.1078617. PMID 12493909. S2CID 22498879.

[39] "Air Samples Show Ozone Depletion May Have Other Causes Than Fluorocarbons". Associated Press.

[40] Thiemens, M. H.; Jackson, T.; Zipf, E. C.; Erdman, P. W.; van Egmond, C. (10 November 1995). "Carbon Dioxide and Oxygen Isotope Anomalies in the Mesosphere and Stratosphere". Science. 270 (5238): 969–972. Bibcode:1995Sci...270..969T. doi:10.1126/science.270.5238.969. S2CID 98076813.

[41] Luz, Boaz; Barkan, Eugeni; Bender, Michael L.; Thiemens, Mark H.; Boering, Kristie A. (August 1999). "Triple-isotope composition of atmospheric oxygen as a tracer of biosphere productivity". Nature. 400 (6744): 547–550. Bibcode:1999Natur.400..547L. doi:10.1038/22987. S2CID 4345679.

[42] "Tracking the radiation released from Fukushima | Earth | EarthSky". 15 August 2011.

[43] Priyadarshi, A.; Dominguez, G.; Thiemens, M. H. (15 August 2011). "Evidence of neutron leakage at the Fukushima nuclear plant from measurements of radioactive 35S in California". Proceedings of the National Academy of Sciences. 108 (35): 14422–14425. Bibcode:2011PNAS..10814422P. doi:10.1073/pnas.1109449108. PMC 3167508. PMID 21844372.

[44] Lin, Mang; Wang, Kun; Kang, Shichang; Thiemens, Mark H. (15 March 2017). "Simple Method for High-Sensitivity Determination of Cosmogenic 35S in Snow and Water Samples Collected from Remote Regions". Analytical Chemistry. 89 (7): 4116–4123. doi:10.1021/acs.analchem.6b05066. PMID 28256822.

[45] "Minor Planet Named for UCSD Science Dean". Photonics.com. 2006-08-22. Retrieved 2020-07-31.

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@@ Line 2: / Line 2: @@
 {{Infobox scientist
 | name              = Mark H. Thiemens
-| image             = mark thiemens.jpg
+| image             =
-| birth_date        = {{birth date and age|1950|1|6|mf=y}}
 | birth_place       = [[St Louis, Mo]], [[United States]]
 | education         = B.S. Univ. Miami,
 M.S. Old Dominion University,
 PhD. Florida State University Miami
-| field             = Physical chemistry of isotope effects,<br>
+| field             = Physical chemistry of isotope effects,<br />
-Solar system origin and evolution,<br>
+Solar system origin and evolution,<br />
-Lunar and planetary science,<br>
+Lunar and planetary science,<br />
-Climate change,<br>
+Climate change,<br />
-Origin and evolution of life<br>
+Origin and evolution of life<br />
 | spouse            = Nasrin Marzban
 | work_institutions = University of California San Diego
-| prizes            = [https://www.geochemsoc.org/honors/awards/vmgoldschmidtaward Goldschmidt Medal]<br>
+| prizes            = [https://royalsociety.org/people/mark-thiemens-36773/ Royal Society Foreign Member]<br />
-[https://science.osti.gov/lawrence/Award-Laureates/1990s/thiemens E.O. Lawrence Medal]<br>
+[https://www.geochemsoc.org/honors/awards/vmgoldschmidtaward Goldschmidt Medal]<br />
-[https://meteoritical.org/awards/leonard-medalists Leonard Medal]<br>
+[https://science.osti.gov/lawrence/Award-Laureates/1990s/thiemens E.O. Lawrence Medal]<br />
-[http://www.nasonline.org/member-directory/members/3007829.html Members of National Academy Science] and [https://www.amacad.org/person/mark-h-thiemens American Academy Arts and Science]<br>
+[https://meteoritical.org/awards/leonard-medalists Leonard Medal]<br />
+[http://www.nasonline.org/member-directory/members/3007829.html Members of National Academy Science] and [https://www.amacad.org/person/mark-h-thiemens American Academy Arts and Science]<br />
 Asteroid named in honor: [https://minorplanetcenter.net/db_search/show_object?object_id=7004 (7004) Markthiemens]
 | known_for         = Discovery of mass independent isotope chemistry and applications across nature in space and time, origin of life, climate change and physical chemistry of isotope effects
 | children          = Maxwell Marzban Thiemens,
 Lillian Marzban Thiemens
 }}
-'''Mark Howard Thiemens''' (born January 6, 1950 in St. Louis, Missouri) is a Distinguished Professor and the Chancellors Associates Chair in the Department of Chemistry and Biochemistry at the University of California San Diego.<ref>https://www-chem.ucsd.edu/faculty/profiles/thiemens_mark_h.html</ref> He is best known for the discovery of a new physical chemical phenomena termed the mass independent isotope effect.<ref>{{Cite web | url=http://www.nasonline.org/member-directory/members/3007829.html |title = Mark Thiemens}}</ref>
+'''Mark Howard Thiemens''' is a distinguished professor and the John Doves Isaacs Endowed Chair in Natural Philosophy of Physical Sciences in the department of chemistry and biochemistry at the University of California San Diego.<ref>{{cite web | website=Chemistry and Biochemistry | date=1980-01-01 | url=http://www-chem.ucsd.edu/faculty/profiles/thiemens_mark_h.html | access-date=2023-07-03|title=Thiemens, Mark}}</ref> He is best known for the discovery of a new physical chemical phenomenon termed the mass independent isotope effect.<ref>{{Cite web | url=http://www.nasonline.org/member-directory/members/3007829.html |title = Mark Thiemens}}</ref>
-His studies have crossed a broad range of topics including basic physical and quantum chemistry, solar system origin, tracking the origin and evolution of life on early earth; stratospheric chemistry, climate change and greenhouse gas identification, Mars atmospheric chemistry, past and future and isotope geochemistry. His work combines photochemical isotope studies, both laboratory and synchrotron based, field work in the South Pole,<ref>{{cite press release |title=In The Pits: Scientists Dig Through South Pole Snow For Climate Clues |publisher=UC San Diego |date=March 1, 2013 |url=https://antarcticsun.usap.gov/science/2821/ |accessdate=May 22, 2020 }}</ref> Greenland Summit and the Tibetan Himalayas<ref>{{cite press release |title=Scientists Go to Great Heights to Understand Changes in Earth's Atmosphere |publisher=UC San Diego |date=June 18, 2018 |url=https://ucsdnews.ucsd.edu/pressrelease/scientists-great-heights-understand-changes-in-earths-atmosphere |accessdate=May 22, 2020 }}</ref> for climate and geological sampling across China for early earth rock records.
+His studies have crossed a broad range of topics including basic physical and quantum chemistry, Solar System origin, tracking the origin and evolution of life on early Earth; stratospheric chemistry, climate change and greenhouse gas identification, Mars atmospheric chemistry, past and future and isotope geochemistry. His work combines photochemical isotope studies, both laboratory and synchrotron based, field work in the South Pole,<ref>{{cite press release |title=In The Pits: Scientists Dig Through South Pole Snow For Climate Clues |publisher=UC San Diego |date=March 1, 2013 |url=https://antarcticsun.usap.gov/science/2821/ |access-date=May 22, 2020 }}</ref> Greenland Summit and the Tibetan Himalayas<ref>{{cite press release |title=Scientists Go to Great Heights to Understand Changes in Earth's Atmosphere |publisher=UC San Diego |date=June 18, 2018 |url=https://ucsdnews.ucsd.edu/pressrelease/scientists-great-heights-understand-changes-in-earths-atmosphere |access-date=May 22, 2020 }}</ref> for climate and geological sampling across China for early Earth rock records.
-His non-isotope work has included discovery of an unknown source of the greenhouse gas nitrous oxide that lead the global industrial elimination of all emissions, a major contribution to changing global climate change.<ref>{{cite news |title=SCIENCE WATCH; The Nylon Effect |url=https://www.nytimes.com/1991/02/26/science/science-watch-the-nylon-effect.html |work=The New York Times |date=26 February 1991 }}</ref> Thiemens has worked on developing new imaging techniques for space mission return samples<ref>https://www.nanowerk.com/nanotechnology-news/newsid=38418.php</ref><ref>{{cite journal |last1=Dai |first1=S. |last2=Fei |first2=Z. |last3=Ma |first3=Q. |last4=Rodin |first4=A. S. |last5=Wagner |first5=M. |last6=McLeod |first6=A. S. |last7=Liu |first7=M. K. |last8=Gannett |first8=W. |last9=Regan |first9=W. |last10=Watanabe |first10=K. |last11=Taniguchi |first11=T. |last12=Thiemens |first12=M. |last13=Dominguez |first13=G. |last14=Neto |first14=A. H. Castro |last15=Zettl |first15=A. |last16=Keilmann |first16=F. |last17=Jarillo-Herrero |first17=P. |last18=Fogler |first18=M. M. |last19=Basov |first19=D. N. |title=Tunable Phonon Polaritons in Atomically Thin van der Waals Crystals of Boron Nitride |journal=Science |date=7 March 2014 |volume=343 |issue=6175 |pages=1125–1129 |doi=10.1126/science.1246833 |pmid=24604197 |hdl=1721.1/90317 |s2cid=4253950 |hdl-access=free }}</ref><ref>{{cite journal |last1=Fei |first1=Z. |last2=Rodin |first2=A. S. |last3=Andreev |first3=G. O. |last4=Bao |first4=W. |last5=McLeod |first5=A. S. |last6=Wagner |first6=M. |last7=Zhang |first7=L. M. |last8=Zhao |first8=Z. |last9=Thiemens |first9=M. |last10=Dominguez |first10=G. |last11=Fogler |first11=M. M. |last12=Neto |first12=A. H. Castro |last13=Lau |first13=C. N. |last14=Keilmann |first14=F. |last15=Basov |first15=D. N. |title=Gate-tuning of graphene plasmons revealed by infrared nano-imaging |journal=Nature |date=July 2012 |volume=487 |issue=7405 |pages=82–85 |doi=10.1038/nature11253 |pmid=22722866 |arxiv=1202.4993 |s2cid=4348703 }}</ref><ref>{{cite journal |last1=Dominguez |first1=Gerardo |last2=Mcleod |first2=A. S. |last3=Gainsforth |first3=Zack |last4=Kelly |first4=P. |last5=Bechtel |first5=Hans A. |last6=Keilmann |first6=Fritz |last7=Westphal |first7=Andrew |last8=Thiemens |first8=Mark |last9=Basov |first9=D. N. |title=Nanoscale infrared spectroscopy as a non-destructive probe of extraterrestrial samples |journal=Nature Communications |date=9 December 2014 |volume=5 |issue=1 |page=5445 |doi=10.1038/ncomms6445 |pmid=25487365 |doi-access=free }}</ref><ref>{{cite journal |last1=Dai |first1=S. |last2=Ma |first2=Q. |last3=Andersen |first3=T. |last4=Mcleod |first4=A. S. |last5=Fei |first5=Z. |last6=Liu |first6=M. K. |last7=Wagner |first7=M. |last8=Watanabe |first8=K. |last9=Taniguchi |first9=T. |last10=Thiemens |first10=M. |last11=Keilmann |first11=F. |last12=Jarillo-Herrero |first12=P. |last13=Fogler |first13=M. M. |last14=Basov |first14=D. N. |title=Subdiffractional focusing and guiding of polaritonic rays in a natural hyperbolic material |journal=Nature Communications |date=22 April 2015 |volume=6 |issue=1 |page=6963 |doi=10.1038/ncomms7963 |pmid=25902364 |pmc=4421822 }}</ref><ref>{{cite journal |last1=Fei |first1=Z. |last2=Rodin |first2=A. S. |last3=Gannett |first3=W. |last4=Dai |first4=S. |last5=Regan |first5=W. |last6=Wagner |first6=M. |last7=Liu |first7=M. K. |last8=McLeod |first8=A. S. |last9=Dominguez |first9=G. |last10=Thiemens |first10=M. |last11=Castro Neto |first11=Antonio H. |last12=Keilmann |first12=F. |last13=Zettl |first13=A. |last14=Hillenbrand |first14=R. |last15=Fogler |first15=M. M. |last16=Basov |first16=D. N. |title=Electronic and plasmonic phenomena at graphene grain boundaries |journal=Nature Nanotechnology |date=November 2013 |volume=8 |issue=11 |pages=821–825 |doi=10.1038/nnano.2013.197 |pmid=24122082 |arxiv=1311.6827 |s2cid=494891 }}</ref><ref>{{cite journal |last1=Dai |first1=S. |last2=Ma |first2=Q. |last3=Liu |first3=M. K. |last4=Andersen |first4=T. |last5=Fei |first5=Z. |last6=Goldflam |first6=M. D. |last7=Wagner |first7=M. |last8=Watanabe |first8=K. |last9=Taniguchi |first9=T. |last10=Thiemens |first10=M. |last11=Keilmann |first11=F. |last12=Janssen |first12=G. C. a. M. |last13=Zhu |first13=S.-E. |last14=Jarillo-Herrero |first14=P. |last15=Fogler |first15=M. M. |last16=Basov |first16=D. N. |title=Graphene on hexagonal boron nitride as a tunable hyperbolic metamaterial |journal=Nature Nanotechnology |date=August 2015 |volume=10 |issue=8 |pages=682–686 |doi=10.1038/nnano.2015.131 |pmid=26098228 |arxiv=1501.06956 |s2cid=205452562 }}</ref> and detection of superconductivity in nature.<ref name=pmid32205433>{{cite journal |last1=Wampler |first1=James |last2=Thiemens |first2=Mark |last3=Cheng |first3=Shaobo |last4=Zhu |first4=Yimei |last5=Schuller |first5=Ivan K. |title=Superconductivity found in meteorites |journal=Proceedings of the National Academy of Sciences |date=7 April 2020 |volume=117 |issue=14 |pages=7645–7649 |doi=10.1073/pnas.1918056117 |pmid=32205433 |pmc=7148572 |lay-url=https://phys.org/news/2020-03-scientists-superconductivity-meteorites.html }}</ref>
+His non-isotope work has included discovery of an unknown source of the greenhouse gas [[nitrous oxide]] that lead the global industrial elimination of all emissions, a major contribution to changing global climate change.<ref name="SCIENCE WATCH; The Nylon Effect">{{cite news |title=SCIENCE WATCH; The Nylon Effect |url=https://www.nytimes.com/1991/02/26/science/science-watch-the-nylon-effect.html |work=The New York Times |date=26 February 1991 }}</ref> Thiemens has worked on developing new imaging techniques for space mission return samples<ref>{{Cite web|url=https://www.nanowerk.com/nanotechnology-news/newsid=38418.php|title = Nanoscale infrared spectroscopy as a non-destructive probe of extraterrestrial samples}}</ref><ref>{{cite journal |last1=Dai |first1=S. |last2=Fei |first2=Z. |last3=Ma |first3=Q. |last4=Rodin |first4=A. S. |last5=Wagner |first5=M. |last6=McLeod |first6=A. S. |last7=Liu |first7=M. K. |last8=Gannett |first8=W. |last9=Regan |first9=W. |last10=Watanabe |first10=K. |last11=Taniguchi |first11=T. |last12=Thiemens |first12=M. |last13=Dominguez |first13=G. |last14=Neto |first14=A. H. Castro |last15=Zettl |first15=A. |last16=Keilmann |first16=F. |last17=Jarillo-Herrero |first17=P. |last18=Fogler |first18=M. M. |last19=Basov |first19=D. N. |title=Tunable Phonon Polaritons in Atomically Thin van der Waals Crystals of Boron Nitride |journal=Science |date=7 March 2014 |volume=343 |issue=6175 |pages=1125–1129 |doi=10.1126/science.1246833 |pmid=24604197 |bibcode=2014Sci...343.1125D |hdl=1721.1/90317 |s2cid=4253950 |url=https://escholarship.org/uc/item/13q096wk |hdl-access=free }}</ref><ref>{{cite journal |last1=Fei |first1=Z. |last2=Rodin |first2=A. S. |last3=Andreev |first3=G. O. |last4=Bao |first4=W. |last5=McLeod |first5=A. S. |last6=Wagner |first6=M. |last7=Zhang |first7=L. M. |last8=Zhao |first8=Z. |last9=Thiemens |first9=M. |last10=Dominguez |first10=G. |last11=Fogler |first11=M. M. |last12=Neto |first12=A. H. Castro |last13=Lau |first13=C. N. |last14=Keilmann |first14=F. |last15=Basov |first15=D. N. |title=Gate-tuning of graphene plasmons revealed by infrared nano-imaging |journal=Nature |date=July 2012 |volume=487 |issue=7405 |pages=82–85 |doi=10.1038/nature11253 |pmid=22722866 |arxiv=1202.4993 |bibcode=2012Natur.487...82F |s2cid=4348703 }}</ref><ref>{{cite journal |last1=Dominguez |first1=Gerardo |last2=Mcleod |first2=A. S. |last3=Gainsforth |first3=Zack |last4=Kelly |first4=P. |last5=Bechtel |first5=Hans A. |last6=Keilmann |first6=Fritz |last7=Westphal |first7=Andrew |last8=Thiemens |first8=Mark |last9=Basov |first9=D. N. |title=Nanoscale infrared spectroscopy as a non-destructive probe of extraterrestrial samples |journal=Nature Communications |date=9 December 2014 |volume=5 |issue=1 |page=5445 |doi=10.1038/ncomms6445 |pmid=25487365 |bibcode=2014NatCo...5.5445D |doi-access=free }}</ref><ref>{{cite journal |last1=Dai |first1=S. |last2=Ma |first2=Q. |last3=Andersen |first3=T. |last4=Mcleod |first4=A. S. |last5=Fei |first5=Z. |last6=Liu |first6=M. K. |last7=Wagner |first7=M. |last8=Watanabe |first8=K. |last9=Taniguchi |first9=T. |last10=Thiemens |first10=M. |last11=Keilmann |first11=F. |last12=Jarillo-Herrero |first12=P. |last13=Fogler |first13=M. M. |last14=Basov |first14=D. N. |title=Subdiffractional focusing and guiding of polaritonic rays in a natural hyperbolic material |journal=Nature Communications |date=22 April 2015 |volume=6 |issue=1 |page=6963 |doi=10.1038/ncomms7963 |pmid=25902364 |pmc=4421822 |arxiv=1502.04094 |bibcode=2015NatCo...6.6963D }}</ref><ref>{{cite journal |last1=Fei |first1=Z. |last2=Rodin |first2=A. S. |last3=Gannett |first3=W. |last4=Dai |first4=S. |last5=Regan |first5=W. |last6=Wagner |first6=M. |last7=Liu |first7=M. K. |last8=McLeod |first8=A. S. |last9=Dominguez |first9=G. |last10=Thiemens |first10=M. |last11=Castro Neto |first11=Antonio H. |last12=Keilmann |first12=F. |last13=Zettl |first13=A. |last14=Hillenbrand |first14=R. |last15=Fogler |first15=M. M. |last16=Basov |first16=D. N. |title=Electronic and plasmonic phenomena at graphene grain boundaries |journal=Nature Nanotechnology |date=November 2013 |volume=8 |issue=11 |pages=821–825 |doi=10.1038/nnano.2013.197 |pmid=24122082 |arxiv=1311.6827 |bibcode=2013NatNa...8..821F |s2cid=494891 }}</ref><ref>{{cite journal |last1=Dai |first1=S. |last2=Ma |first2=Q. |last3=Liu |first3=M. K. |last4=Andersen |first4=T. |last5=Fei |first5=Z. |last6=Goldflam |first6=M. D. |last7=Wagner |first7=M. |last8=Watanabe |first8=K. |last9=Taniguchi |first9=T. |last10=Thiemens |first10=M. |last11=Keilmann |first11=F. |last12=Janssen |first12=G. C. a. M. |last13=Zhu |first13=S.-E. |last14=Jarillo-Herrero |first14=P. |last15=Fogler |first15=M. M. |last16=Basov |first16=D. N. |title=Graphene on hexagonal boron nitride as a tunable hyperbolic metamaterial |journal=Nature Nanotechnology |date=August 2015 |volume=10 |issue=8 |pages=682–686 |doi=10.1038/nnano.2015.131 |pmid=26098228 |arxiv=1501.06956 |bibcode=2015NatNa..10..682D |s2cid=205452562 }}</ref> and detection of superconductivity in nature.<ref name=pmid32205433>{{cite journal |last1=Wampler |first1=James |last2=Thiemens |first2=Mark |last3=Cheng |first3=Shaobo |last4=Zhu |first4=Yimei |last5=Schuller |first5=Ivan K. |title=Superconductivity found in meteorites |journal=Proceedings of the National Academy of Sciences |date=7 April 2020 |volume=117 |issue=14 |pages=7645–7649 |doi=10.1073/pnas.1918056117 |pmid=32205433 |pmc=7148572 |bibcode=2020PNAS..117.7645W |doi-access=free }}
+*{{cite web |author=Cynthia Dillon |date=March 24, 2020 |title=Scientists observe superconductivity in meteorites |website=Phys.org |url=https://phys.org/news/2020-03-scientists-superconductivity-meteorites.html}}</ref>
 ==Education==
@@ Line 35: / Line 35: @@
 ==Career==
-Thiemens moved to the Department of Chemistry at the University of California San Diego in 1980, where he was hired as an assistant professor as a replacement for [[Hans Suess|Hans Seuss]] and took over the laboratory of Nobel Laureate [[Harold Urey]]. He was promoted to Full Professor in 1989, and served as the Chair of the Department of Chemistry and Biochemistry from 1996-1999. He was the founding Dean of the Division of Physical Sciences and served from 1999-2016.
+Thiemens moved to the department of chemistry at the University of California San Diego in 1980, where he was hired as an assistant professor as a replacement for [[Hans Suess|Hans Seuss]] and took over the laboratory of Nobel Laureate [[Harold Urey]]. He was promoted to full professor in 1989, and served as the chair of the department of chemistry and biochemistry from 1996-1999. He was the founding dean of the division of physical sciences and served from 1999-2016.
 ==Research==
-Thiemens research at UCSD initiated after a re build of the Urey isotope ratio mass spectrometer to allow measurement of both oxygen isotope ratios (<sup>18</sup>O/<sup>16</sup>O, <sup>17</sup>O/<sup>16</sup>O). His first publication as an Assistant Professor reported in ''Science'' the first mass independent isotope effect which occurred during ozone formation. This was the first demonstration of a chemical process that could alter isotope ratios in a manner independently of mass difference.<ref>{{cite journal |last1=Thiemens |first1=M. H. |last2=Heidenreich |first2=J. E. |title=The Mass-Independent Fractionation of Oxygen: A Novel Isotope Effect and Its Possible Cosmochemical Implications |journal=Science |date=4 March 1983 |volume=219 |issue=4588 |pages=1073–1075 |doi=10.1126/science.219.4588.1073 |pmid=17811750 |s2cid=26466899 }}</ref> Most strikingly was that the pattern of mass independent and the <sup>17</sup>O/<sup>16</sup>O,<sup>18</sup>O/<sup>16</sup>O variation varied equally and reproduced the same pattern observed in primitive inclusions of the Allende carbonaceous chondritic meteorite.<ref>{{cite journal |last1=Clayton |first1=R. N. |last2=Grossman |first2=L. |last3=Mayeda |first3=T. K. |title=A Component of Primitive Nuclear Composition in Carbonaceous Meteorites |journal=Science |date=2 November 1973 |volume=182 |issue=4111 |pages=485–488 |doi=10.1126/science.182.4111.485 |pmid=17832468 |s2cid=22386977 }}</ref> The underlying assumption for the inclusions anomaly deriving from a nucleosynthetic component was incorrect and new models for early solar system formation were needed and have evolved since. Much of Thiemens research has been dedicated to experimentally exploring the relevant fractionation processes that may account for the observations; including synchrotron photodissociation effects in CO.<ref>https://www.sciencedaily.com/releases/2008/09/080915134903.htm</ref><ref>{{cite journal |last1=Chakraborty |first1=S. |last2=Ahmed |first2=M. |last3=Jackson |first3=T. L. |last4=Thiemens |first4=M. H. |title=Experimental Test of Self-Shielding in Vacuum Ultraviolet Photodissociation of CO |journal=Science |date=5 September 2008 |volume=321 |issue=5894 |pages=1328–1331 |doi=10.1126/science.1159178 |pmid=18772432 |s2cid=713105 }}</ref><ref>{{cite journal |last1=Chakraborty |first1=Subrata |last2=Davis |first2=Ryan D. |last3=Ahmed |first3=Musahid |last4=Jackson |first4=Teresa L. |last5=Thiemens |first5=Mark H. |title=Oxygen isotope fractionation in the vacuum ultraviolet photodissociation of carbon monoxide: Wavelength, pressure, and temperature dependency |journal=The Journal of Chemical Physics |date=14 July 2012 |volume=137 |issue=2 |pages=024309 |doi=10.1063/1.4730911 |pmid=22803538 |url=https://digital.library.unt.edu/ark:/67531/metadc838640/ }}</ref> The gas to particle formation process of the first solids in the nebula have also experimentally been shown to produce the mass independent anomaly.<ref>https://phys.org/news/2013-10-scientists-mystery-odd-patterns-oxygen.html</ref> Meteoritic material studies of Thiemens in sulfur isotopes have shown that sulfonic acids from chondritic meteorites have shown that photochemical processes have been important contributor to their molecular synthesis<ref>{{cite journal |last1=Cooper |first1=George W. |last2=Thiemens |first2=Mark H. |last3=Jackson |first3=Teresa L. |last4=Chang |first4=Sherwood |title=Sulfur and Hydrogen Isotope Anomalies in Meteorite Sulfonic Acids |journal=Science |date=22 August 1997 |volume=277 |issue=5329 |pages=1072–1074 |doi=10.1126/science.277.5329.1072 |pmid=9262469 |hdl=2060/19980038124 |hdl-access=free }}</ref> as well other sulfur species.<ref>{{cite journal |last1=Rai |first1=V. K. |title=Photochemical Mass-Independent Sulfur Isotopes in Achondritic Meteorites |journal=Science |date=12 August 2005 |volume=309 |issue=5737 |pages=1062–1065 |doi=10.1126/science.1112954 |pmid=16099982 |s2cid=26306652 }}</ref> To interpret mass independent isotope effects during photodissociation, Thiemens has worked in collaboration with Raphy Levine of Hebrew University<ref>{{cite journal |last1=Muskatel |first1=B. H. |last2=Remacle |first2=F. |last3=Thiemens |first3=M. H. |last4=Levine |first4=R. D. |title=On the strong and selective isotope effect in the UV excitation of N2 with implications toward the nebula and Martian atmosphere |journal=Proceedings of the National Academy of Sciences |date=24 March 2011 |volume=108 |issue=15 |pages=6020–6025 |doi=10.1073/pnas.1102767108 |pmid=21441106 |pmc=3076819 |doi-access=free }}</ref><ref>{{cite journal |last1=Chakraborty |first1=S. |last2=Muskatel |first2=B. H. |last3=Jackson |first3=T. L. |last4=Ahmed |first4=M. |last5=Levine |first5=R. D. |last6=Thiemens |first6=M. H. |title=Massive isotopic effect in vacuum UV photodissociation of N2 and implications for meteorite data |journal=Proceedings of the National Academy of Sciences |date=29 September 2014 |volume=111 |issue=41 |pages=14704–14709 |doi=10.1073/pnas.1410440111 |pmid=25267643 |pmc=4205658 |doi-access=free }}</ref> to interpret mass independent isotope effects during photodissociation and better explore the fundamental chemical physics of the processes. The understanding of the basis of the ozone effect has been extensively studied by Nobel Laureate [[Rudolph A. Marcus|Rudy Marcus]] and catalyzed deeper insight into the chemical physics.<ref>{{cite journal |last1=Gao |first1=Y. Q. |title=Strange and Unconventional Isotope Effects in Ozone Formation |journal=Science |date=31 May 2001 |volume=293 |issue=5528 |pages=259–263 |doi=10.1126/science.1058528 |pmid=11387441 |s2cid=867229 }}</ref><ref>{{Cite web | url=http://cce.caltech.edu/people/rudolph-a-rudy-marcus | title=Rudolph A. (Rudy) Marcus &#124; Division of Chemistry and Chemical Engineering}}</ref>
+Thiemens research at UCSD initiated after a rebuild of the Urey isotope ratio mass spectrometer to allow measurement of both oxygen isotope ratios (<sup>18</sup>O/<sup>16</sup>O, <sup>17</sup>O/<sup>16</sup>O). His first publication as an assistant professor reported in ''Science'' the first mass independent isotope effect which occurred during ozone formation. This was the first demonstration of a chemical process that could alter isotope ratios in a manner independently of mass difference.<ref>{{cite journal |last1=Thiemens |first1=M. H. |last2=Heidenreich |first2=J. E. |title=The Mass-Independent Fractionation of Oxygen: A Novel Isotope Effect and Its Possible Cosmochemical Implications |journal=Science |date=4 March 1983 |volume=219 |issue=4588 |pages=1073–1075 |doi=10.1126/science.219.4588.1073 |pmid=17811750 |bibcode=1983Sci...219.1073T |s2cid=26466899 }}</ref> Most strikingly was that the pattern of mass independent and the <sup>17</sup>O/<sup>16</sup>O,<sup>18</sup>O/<sup>16</sup>O variation varied equally and reproduced the same pattern observed in primitive inclusions of the Allende carbonaceous chondritic meteorite.<ref>{{cite journal |last1=Clayton |first1=R. N. |last2=Grossman |first2=L. |last3=Mayeda |first3=T. K. |title=A Component of Primitive Nuclear Composition in Carbonaceous Meteorites |journal=Science |date=2 November 1973 |volume=182 |issue=4111 |pages=485–488 |doi=10.1126/science.182.4111.485 |pmid=17832468 |bibcode=1973Sci...182..485C |s2cid=22386977 }}</ref> The underlying assumption for the inclusions anomaly deriving from a nucleosynthetic component was incorrect and new models for early Solar System formation were needed and have evolved since. Much of Thiemens research has been dedicated to experimentally exploring the relevant fractionation processes that may account for the observations; including synchrotron photodissociation effects in CO.<ref>{{Cite web|url=https://www.sciencedaily.com/releases/2008/09/080915134903.htm|title = New Clues to Oxygen at the Origin of the Solar System}}</ref><ref>{{cite journal |last1=Chakraborty |first1=S. |last2=Ahmed |first2=M. |last3=Jackson |first3=T. L. |last4=Thiemens |first4=M. H. |title=Experimental Test of Self-Shielding in Vacuum Ultraviolet Photodissociation of CO |journal=Science |date=5 September 2008 |volume=321 |issue=5894 |pages=1328–1331 |doi=10.1126/science.1159178 |pmid=18772432 |bibcode=2008Sci...321.1328C |s2cid=713105 }}</ref><ref>{{cite journal |last1=Chakraborty |first1=Subrata |last2=Davis |first2=Ryan D. |last3=Ahmed |first3=Musahid |last4=Jackson |first4=Teresa L. |last5=Thiemens |first5=Mark H. |title=Oxygen isotope fractionation in the vacuum ultraviolet photodissociation of carbon monoxide: Wavelength, pressure, and temperature dependency |journal=The Journal of Chemical Physics |date=14 July 2012 |volume=137 |issue=2 |pages=024309 |doi=10.1063/1.4730911 |pmid=22803538 |bibcode=2012JChPh.137b4309C |s2cid=7312120 |url=https://digital.library.unt.edu/ark:/67531/metadc838640/ }}</ref> The gas to particle formation process of the first solids in the nebula have also experimentally been shown to produce the mass independent anomaly.<ref>{{Cite web|url=https://phys.org/news/2013-10-scientists-mystery-odd-patterns-oxygen.html|title = Scientists solve mystery of odd patterns of oxygen in solar system's earliest rocks}}</ref> Meteoritic material studies of Thiemens in sulfur isotopes have shown that sulfonic acids from chondritic meteorites have shown that photochemical processes have been important contributor to their molecular synthesis<ref>{{cite journal |last1=Cooper |first1=George W. |last2=Thiemens |first2=Mark H. |last3=Jackson |first3=Teresa L. |last4=Chang |first4=Sherwood |title=Sulfur and Hydrogen Isotope Anomalies in Meteorite Sulfonic Acids |journal=Science |date=22 August 1997 |volume=277 |issue=5329 |pages=1072–1074 |doi=10.1126/science.277.5329.1072 |pmid=9262469 |bibcode=1997Sci...277.1072C |hdl=2060/19980038124 |hdl-access=free }}</ref> as well other sulfur species.<ref>{{cite journal |last1=Rai |first1=V. K. |title=Photochemical Mass-Independent Sulfur Isotopes in Achondritic Meteorites |journal=Science |date=12 August 2005 |volume=309 |issue=5737 |pages=1062–1065 |doi=10.1126/science.1112954 |pmid=16099982 |bibcode=2005Sci...309.1062R |s2cid=26306652 }}</ref> To interpret mass independent isotope effects during photodissociation, Thiemens has worked in collaboration with Raphy Levine of Hebrew University<ref>{{cite journal |last1=Muskatel |first1=B. H. |last2=Remacle |first2=F. |last3=Thiemens |first3=M. H. |last4=Levine |first4=R. D. |title=On the strong and selective isotope effect in the UV excitation of N2 with implications toward the nebula and Martian atmosphere |journal=Proceedings of the National Academy of Sciences |date=24 March 2011 |volume=108 |issue=15 |pages=6020–6025 |doi=10.1073/pnas.1102767108 |pmid=21441106 |pmc=3076819 |bibcode=2011PNAS..108.6020M |doi-access=free }}</ref><ref>{{cite journal |last1=Chakraborty |first1=S. |last2=Muskatel |first2=B. H. |last3=Jackson |first3=T. L. |last4=Ahmed |first4=M. |last5=Levine |first5=R. D. |last6=Thiemens |first6=M. H. |title=Massive isotopic effect in vacuum UV photodissociation of N2 and implications for meteorite data |journal=Proceedings of the National Academy of Sciences |date=29 September 2014 |volume=111 |issue=41 |pages=14704–14709 |doi=10.1073/pnas.1410440111 |pmid=25267643 |pmc=4205658 |bibcode=2014PNAS..11114704C |doi-access=free }}</ref> to interpret mass independent isotope effects during photodissociation and better explore the fundamental chemical physics of the processes. The understanding of the basis of the ozone effect has been extensively studied by Nobel Laureate [[Rudolph A. Marcus|Rudy Marcus]] and catalyzed deeper insight into the chemical physics.<ref>{{cite journal |last1=Gao |first1=Y. Q. |title=Strange and Unconventional Isotope Effects in Ozone Formation |journal=Science |date=31 May 2001 |volume=293 |issue=5528 |pages=259–263 |doi=10.1126/science.1058528 |pmid=11387441 |bibcode=2001Sci...293..259G |s2cid=867229 }}</ref><ref>{{Cite web | url=http://cce.caltech.edu/people/rudolph-a-rudy-marcus | title=Rudolph A. (Rudy) Marcus &#124; Division of Chemistry and Chemical Engineering}}</ref>
-Thiemens has worked broadly on understanding the earth system. Thiemens and Trogler<ref>{{cite journal |last1=Thiemens |first1=M. H. |last2=Trogler |first2=W. C. |title=Nylon Production: An Unknown Source of Atmospheric Nitrous Oxide |journal=Science |date=22 February 1991 |volume=251 |issue=4996 |pages=932–934 |doi=10.1126/science.251.4996.932 |pmid=17847387 |s2cid=22090514 }}</ref> identified a source of 10% of the increasing emissions of nitrous oxide, a greenhouse gas with a radiative forcing 200 times CO<sub>2</sub> on a per molecules basis and a 100 year plus lifetime with unidentified sources. It was shown that the manufacture of adipic acid, used in nylon production is a globally important source. In the year post publication, a global inter industry consortium banded together to eliminate all N2O emissions, with far reaching climate impact.<ref>{{cite news |title=SCIENCE WATCH; The Nylon Effect |url=https://www.nytimes.com/1991/02/26/science/science-watch-the-nylon-effect.html |work=The New York Times |date=26 February 1991 }}</ref>
+Thiemens has worked broadly on understanding the Earth system. Thiemens and Trogler<ref>{{cite journal |last1=Thiemens |first1=M. H. |last2=Trogler |first2=W. C. |title=Nylon Production: An Unknown Source of Atmospheric Nitrous Oxide |journal=Science |date=22 February 1991 |volume=251 |issue=4996 |pages=932–934 |doi=10.1126/science.251.4996.932 |pmid=17847387 |bibcode=1991Sci...251..932T |s2cid=22090514 }}</ref> identified a source of 10% of the increasing emissions of nitrous oxide, a greenhouse gas with a radiative forcing 200 times CO<sub>2</sub> on a per molecules basis and a 100 year plus lifetime with unidentified sources. It was shown that the manufacture of adipic acid, used in nylon production is a globally important source. In the year post publication, a global inter industry consortium banded together to eliminate all N2O emissions, with far reaching climate impact.<ref name="SCIENCE WATCH; The Nylon Effect"/>
 [[File:Mark south pole.jpg|alt=|thumb|upright=1.25|Thiemens at South Pole marker on expedition to dig snow pit for isotope record]]
-Thiemens work in atmospheric chemistry has had extensive impact. The atmospheric chemistry of oxygen isotopes has been used to define atmospheric ozone surface reactions on Mars across billion-year time scales<ref>{{cite journal |last1=Farquhar |first1=J. |title=Atmosphere-Surface Interactions on Mars: 17O Measurements of Carbonate from ALH 84001 |journal=Science |date=5 June 1998 |volume=280 |issue=5369 |pages=1580–1582 |doi=10.1126/science.280.5369.1580 |pmid=9616116 }}</ref> and the oxygen isotopic carbonate record on Mars has been measured to deepen insight into reservoir mixing.<ref>https://phys.org/news/2014-12-chemical-analysis-ancient-martian-meteorite.html</ref><ref>{{cite journal |last1=Shaheen |first1=Robina |last2=Niles |first2=Paul B. |last3=Chong |first3=Kenneth |last4=Corrigan |first4=Catherine M. |last5=Thiemens |first5=Mark H. |title=Carbonate formation events in ALH 84001 trace the evolution of the Martian atmosphere |journal=Proceedings of the National Academy of Sciences |date=13 January 2015 |volume=112 |issue=2 |pages=336–341 |doi=10.1073/pnas.1315615112 |pmid=25535348 |pmc=4299197 |doi-access=free }}</ref> Terrestrial atmospheric carbonate aerosol oxygen isotopic measurements allow heterogenous reaction chemistry in both atmospheres to be resolved.<ref>{{cite journal |last1=Shaheen |first1=R. |last2=Abramian |first2=A. |last3=Horn |first3=J. |last4=Dominguez |first4=G. |last5=Sullivan |first5=R. |last6=Thiemens |first6=M. H. |title=Detection of oxygen isotopic anomaly in terrestrial atmospheric carbonates and its implications to Mars |journal=Proceedings of the National Academy of Sciences |date=8 November 2010 |volume=107 |issue=47 |pages=20213–20218 |doi=10.1073/pnas.1014399107 |pmid=21059939 |pmc=2996665 |doi-access=free }}</ref> Mass independent sulfur isotopes in Mars meteorites were used to show ultra violet SO<sub>2</sub> photochemical reactions in the past Martian atmosphere.<ref>{{cite journal |last1=Farquhar |first1=James |last2=Savarino |first2=Joel |last3=Jackson |first3=Terri L. |last4=Thiemens |first4=Mark H. |title=Evidence of atmospheric sulphur in the martian regolith from sulphur isotopes in meteorites |journal=Nature |date=March 2000 |volume=404 |issue=6773 |pages=50–52 |doi=10.1038/35003517 |pmid=10716436 |s2cid=731902 }}</ref>
+Thiemens work in atmospheric chemistry has had extensive impact. The atmospheric chemistry of oxygen isotopes has been used to define atmospheric ozone surface reactions on Mars across billion-year time scales<ref>{{cite journal |last1=Farquhar |first1=J. |title=Atmosphere-Surface Interactions on Mars: 17O Measurements of Carbonate from ALH 84001 |journal=Science |date=5 June 1998 |volume=280 |issue=5369 |pages=1580–1582 |doi=10.1126/science.280.5369.1580 |pmid=9616116 }}</ref> and the oxygen isotopic carbonate record on Mars has been measured to deepen insight into reservoir mixing.<ref>{{Cite web|url=https://phys.org/news/2014-12-chemical-analysis-ancient-martian-meteorite.html|title=New chemical analysis of ancient Martian meteorite provides clues to planet's history of habitability}}</ref><ref>{{cite journal |last1=Shaheen |first1=Robina |last2=Niles |first2=Paul B. |last3=Chong |first3=Kenneth |last4=Corrigan |first4=Catherine M. |last5=Thiemens |first5=Mark H. |title=Carbonate formation events in ALH 84001 trace the evolution of the Martian atmosphere |journal=Proceedings of the National Academy of Sciences |date=13 January 2015 |volume=112 |issue=2 |pages=336–341 |doi=10.1073/pnas.1315615112 |pmid=25535348 |pmc=4299197 |bibcode=2015PNAS..112..336S |doi-access=free }}</ref> Terrestrial atmospheric carbonate aerosol oxygen isotopic measurements allow heterogenous reaction chemistry in both atmospheres to be resolved.<ref>{{cite journal |last1=Shaheen |first1=R. |last2=Abramian |first2=A. |last3=Horn |first3=J. |last4=Dominguez |first4=G. |last5=Sullivan |first5=R. |last6=Thiemens |first6=M. H. |title=Detection of oxygen isotopic anomaly in terrestrial atmospheric carbonates and its implications to Mars |journal=Proceedings of the National Academy of Sciences |date=8 November 2010 |volume=107 |issue=47 |pages=20213–20218 |doi=10.1073/pnas.1014399107 |pmid=21059939 |pmc=2996665 |bibcode=2010PNAS..10720213S |doi-access=free }}</ref> Mass independent sulfur isotopes in Mars meteorites were used to show ultra violet SO<sub>2</sub> photochemical reactions in the past Martian atmosphere.<ref>{{cite journal |last1=Farquhar |first1=James |last2=Savarino |first2=Joel |last3=Jackson |first3=Terri L. |last4=Thiemens |first4=Mark H. |title=Evidence of atmospheric sulphur in the martian regolith from sulphur isotopes in meteorites |journal=Nature |date=March 2000 |volume=404 |issue=6773 |pages=50–52 |doi=10.1038/35003517 |pmid=10716436 |bibcode=2000Natur.404...50F |s2cid=731902 }}</ref>
-The Mars sulfur observations lead to one of the most important applications of the isotope effects. In the present earth's atmosphere, the need for UV light to carry out SO<sub>2</sub> photodissociation does not allow occurrence in today's lower atmosphere because of stratospheric ozone screening of UV light, but in a reduced oxygen atmosphere UV should pass through. Measurement of sulfur isotopes in the earths earliest rock record revealed that large and variable mass independent sulfur isotope effects occur in <sup>33</sup>S/<sup>32</sup>S, <sup>36</sup>S/<sup>32</sup>S ratios,<ref>{{cite journal |last1=Farquhar |first1=J. |title=Atmospheric Influence of Earth's Earliest Sulfur Cycle |journal=Science |date=4 August 2000 |volume=289 |issue=5480 |pages=756–758 |doi=10.1126/science.289.5480.756 |pmid=10926533 }}</ref> as observed in Mars meteorites and laboratory experiments.<ref>{{cite journal |last1=Farquhar |first1=James |last2=Savarino |first2=Joel |last3=Airieau |first3=Sabine |last4=Thiemens |first4=Mark H. |title=Observation of wavelength-sensitive mass-independent sulfur isotope effects during SO photolysis: Implications for the early atmosphere |journal=Journal of Geophysical Research: Planets |date=25 December 2001 |volume=106 |issue=E12 |pages=32829–32839 |doi=10.1029/2000JE001437 |doi-access=free }}</ref> The short atmospheric lifetime of SO<sub>2</sub> photochemistry is produced only with lowered O<sub>2</sub>-O<sub>3</sub> level. For first time, oxygen levels in the earliest earth could be determined.<ref>[[Great Oxidation Event]]</ref>{{Circular reference|date=November 2020}} The sulfur work is widely used to track the origin and evolution of life.
+The Mars sulfur observations lead to one of the most important applications of the isotope effects. In the present Earth's atmosphere, the need for UV light to carry out SO<sub>2</sub> photodissociation does not allow occurrence in today's lower atmosphere because of stratospheric ozone screening of UV light, but in a reduced oxygen atmosphere UV should pass through. Measurement of sulfur isotopes in the Earths earliest rock record revealed that large and variable mass independent sulfur isotope effects occur in <sup>33</sup>S/<sup>32</sup>S, <sup>36</sup>S/<sup>32</sup>S ratios,<ref>{{cite journal |last1=Farquhar |first1=J. |title=Atmospheric Influence of Earth's Earliest Sulfur Cycle |journal=Science |date=4 August 2000 |volume=289 |issue=5480 |pages=756–758 |doi=10.1126/science.289.5480.756 |pmid=10926533 |bibcode=2000Sci...289..756F }}</ref> as observed in Mars meteorites and laboratory experiments.<ref>{{cite journal |last1=Farquhar |first1=James |last2=Savarino |first2=Joel |last3=Airieau |first3=Sabine |last4=Thiemens |first4=Mark H. |title=Observation of wavelength-sensitive mass-independent sulfur isotope effects during SO photolysis: Implications for the early atmosphere |journal=Journal of Geophysical Research: Planets |date=25 December 2001 |volume=106 |issue=E12 |pages=32829–32839 |doi=10.1029/2000JE001437 |bibcode=2001JGR...10632829F |doi-access=free }}</ref> The short atmospheric lifetime of SO<sub>2</sub> photochemistry is produced only with lowered O<sub>2</sub>-O<sub>3</sub> level. For first time, oxygen levels in the earliest Earth could be determined.<ref>[[Great Oxidation Event]]</ref>{{Circular reference|date=November 2020}} The sulfur work is widely used to track the origin and evolution of life.
-Present day sulfur isotopic anomalies in sulfate from Antarctic and Greenland ice have been used to determine the influence of massive volcanoes on the stratosphere.<ref>{{cite journal |last1=Baroni |first1=M. |last2=Thiemens |first2=M. H. |last3=Delmas |first3=R. J. |last4=Savarino |first4=J. |title=Mass-Independent Sulfur Isotopic Compositions in Stratospheric Volcanic Eruptions |journal=Science |date=5 January 2007 |volume=315 |issue=5808 |pages=84–87 |doi=10.1126/science.1131754 |pmid=17204647 |s2cid=40342760 }}</ref> Samples from a snow pit dug by Thiemens and colleagues have shown that there exist sources of sulfur chemistry that need to be included in studies of the atmosphere today and in the early earth.<ref>{{cite journal |last1=Shaheen |first1=R. |last2=Abaunza |first2=M. M. |last3=Jackson |first3=T. L. |last4=McCabe |first4=J. |last5=Savarino |first5=J. |last6=Thiemens |first6=M. H. |title=Large sulfur-isotope anomaly in nonvolcanic sulfate aerosol and its implications for the Archean atmosphere |journal=Proceedings of the National Academy of Sciences |date=4 August 2014 |volume=111 |issue=33 |pages=11979–11983 |doi=10.1073/pnas.1406315111 |pmid=25092338 |pmc=4143030 |doi-access=free }}</ref>
+Present day sulfur isotopic anomalies in sulfate from Antarctic and Greenland ice have been used to determine the influence of massive volcanoes on the stratosphere.<ref>{{cite journal |last1=Baroni |first1=M. |last2=Thiemens |first2=M. H. |last3=Delmas |first3=R. J. |last4=Savarino |first4=J. |title=Mass-Independent Sulfur Isotopic Compositions in Stratospheric Volcanic Eruptions |journal=Science |date=5 January 2007 |volume=315 |issue=5808 |pages=84–87 |doi=10.1126/science.1131754 |pmid=17204647 |bibcode=2007Sci...315...84B |s2cid=40342760 }}</ref> Samples from a snow pit dug by Thiemens and colleagues have shown that there exist sources of sulfur chemistry that need to be included in studies of the atmosphere today and in the early Earth.<ref>{{cite journal |last1=Shaheen |first1=R. |last2=Abaunza |first2=M. M. |last3=Jackson |first3=T. L. |last4=McCabe |first4=J. |last5=Savarino |first5=J. |last6=Thiemens |first6=M. H. |title=Large sulfur-isotope anomaly in nonvolcanic sulfate aerosol and its implications for the Archean atmosphere |journal=Proceedings of the National Academy of Sciences |date=4 August 2014 |volume=111 |issue=33 |pages=11979–11983 |doi=10.1073/pnas.1406315111 |pmid=25092338 |pmc=4143030 |bibcode=2014PNAS..11111979S |doi-access=free }}</ref>
-The inclusion of radiogenic <sup>35</sup>S with the 4 stable sulfur isotopes have further enhanced mechanistic details of the contributors to the fractionation processes in the pre Cambrium era and today.<ref>{{cite journal |last1=Lin |first1=Mang |last2=Zhang |first2=Xiaolin |last3=Li |first3=Menghan |last4=Xu |first4=Yilun |last5=Zhang |first5=Zhisheng |last6=Tao |first6=Jun |last7=Su |first7=Binbin |last8=Liu |first8=Lanzhong |last9=Shen |first9=Yanan |last10=Thiemens |first10=Mark H. |title=Five-S-isotope evidence of two distinct mass-independent sulfur isotope effects and implications for the modern and Archean atmospheres |journal=Proceedings of the National Academy of Sciences |date=21 August 2018 |volume=115 |issue=34 |pages=8541–8546 |doi=10.1073/pnas.1803420115 |pmid=30082380 |pmc=6112696 |doi-access=free }}</ref> An atmospheric sulfur anomaly is observed in diamonds and uniquely tracks atmosphere-mantle mixing dynamics on billion-year time scales.<ref>{{cite journal |last1=Farquhar |first1=J. |title=Mass-Independent Sulfur of Inclusions in Diamond and Sulfur Recycling on Early Earth |journal=Science |date=20 December 2002 |volume=298 |issue=5602 |pages=2369–2372 |doi=10.1126/science.1078617 |pmid=12493909 |s2cid=22498879 }}</ref>
+The inclusion of radiogenic <sup>35</sup>S with the 4 stable sulfur isotopes have further enhanced mechanistic details of the contributors to the fractionation processes in the pre Cambrium era and today.<ref>{{cite journal |last1=Lin |first1=Mang |last2=Zhang |first2=Xiaolin |last3=Li |first3=Menghan |last4=Xu |first4=Yilun |last5=Zhang |first5=Zhisheng |last6=Tao |first6=Jun |last7=Su |first7=Binbin |last8=Liu |first8=Lanzhong |last9=Shen |first9=Yanan |last10=Thiemens |first10=Mark H. |title=Five-S-isotope evidence of two distinct mass-independent sulfur isotope effects and implications for the modern and Archean atmospheres |journal=Proceedings of the National Academy of Sciences |date=21 August 2018 |volume=115 |issue=34 |pages=8541–8546 |doi=10.1073/pnas.1803420115 |pmid=30082380 |pmc=6112696 |bibcode=2018PNAS..115.8541L |doi-access=free }}</ref> An atmospheric sulfur anomaly is observed in diamonds and uniquely tracks atmosphere-mantle mixing dynamics on billion-year time scales.<ref>{{cite journal |last1=Farquhar |first1=J. |title=Mass-Independent Sulfur of Inclusions in Diamond and Sulfur Recycling on Early Earth |journal=Science |date=20 December 2002 |volume=298 |issue=5602 |pages=2369–2372 |doi=10.1126/science.1078617 |pmid=12493909 |bibcode=2002Sci...298.2369F |s2cid=22498879 }}</ref>
-Thiemens has used oxygen isotopes to study oxygen chemistry of the stratosphere and mesosphere using a rocket borne cryogenic whole air sampler.<ref>https://apnews.com/aa09fc127d4630a0af10533c02df53de</ref><ref>{{cite journal |last1=Thiemens |first1=M. H. |last2=Jackson |first2=T. |last3=Zipf |first3=E. C. |last4=Erdman |first4=P. W. |last5=van Egmond |first5=C. |title=Carbon Dioxide and Oxygen Isotope Anomalies in the Mesosphere and Stratosphere |journal=Science |date=10 November 1995 |volume=270 |issue=5238 |pages=969–972 |doi=10.1126/science.270.5238.969 |s2cid=98076813 }}</ref> The intersection of O(<sup>1</sup>D) from ozone photolysis exchange with CO<sub>2</sub> and passes the isotopic anomaly to be used as a tracer. The small effect in the O<sub>2</sub> is removed by the process of photosynthesis and respiration<ref>{{cite journal |last1=Luz |first1=Boaz |last2=Barkan |first2=Eugeni |last3=Bender |first3=Michael L. |last4=Thiemens |first4=Mark H. |last5=Boering |first5=Kristie A. |title=Triple-isotope composition of atmospheric oxygen as a tracer of biosphere productivity |journal=Nature |date=August 1999 |volume=400 |issue=6744 |pages=547–550 |doi=10.1038/22987 |s2cid=4345679 }}</ref> and allows a new, highly sensitive way to quantify global primary productivity (GPP) in the world's oceans and, from oxygen trapped in ice cores across long time periods.
+Thiemens has used oxygen isotopes to study oxygen chemistry of the stratosphere and mesosphere using a rocket borne cryogenic whole air sampler.<ref>{{Cite web|url=https://apnews.com/aa09fc127d4630a0af10533c02df53de|title=Air Samples Show Ozone Depletion May Have Other Causes Than Fluorocarbons|website=[[Associated Press]]}}</ref><ref>{{cite journal |last1=Thiemens |first1=M. H. |last2=Jackson |first2=T. |last3=Zipf |first3=E. C. |last4=Erdman |first4=P. W. |last5=van Egmond |first5=C. |title=Carbon Dioxide and Oxygen Isotope Anomalies in the Mesosphere and Stratosphere |journal=Science |date=10 November 1995 |volume=270 |issue=5238 |pages=969–972 |doi=10.1126/science.270.5238.969 |bibcode=1995Sci...270..969T |s2cid=98076813 }}</ref> The intersection of O(<sup>1</sup>D) from ozone photolysis exchange with CO<sub>2</sub> and passes the isotopic anomaly to be used as a tracer. The small effect in the O<sub>2</sub> is removed by the process of photosynthesis and respiration<ref>{{cite journal |last1=Luz |first1=Boaz |last2=Barkan |first2=Eugeni |last3=Bender |first3=Michael L. |last4=Thiemens |first4=Mark H. |last5=Boering |first5=Kristie A. |title=Triple-isotope composition of atmospheric oxygen as a tracer of biosphere productivity |journal=Nature |date=August 1999 |volume=400 |issue=6744 |pages=547–550 |doi=10.1038/22987 |bibcode=1999Natur.400..547L |s2cid=4345679 }}</ref> and allows a new, highly sensitive way to quantify global primary productivity (GPP) in the world's oceans and, from oxygen trapped in ice cores across long time periods.
-Using mass independent oxygen isotopes Thiemens and colleagues have applied them to further identify N<sub>2</sub>O sources. Thiemens developed the ability to measure naturally produced <sup>35</sup>S (87-day half-life) to provide the first trans Pacific atmospheric Fukushima emissions and calculate the reactor neutronicity.<ref>https://earthsky.org/earth/first-quantitative-measure-of-radiation-leaked-from-fukushima-reactor</ref><ref>{{cite journal |last1=Priyadarshi |first1=A. |last2=Dominguez |first2=G. |last3=Thiemens |first3=M. H. |title=Evidence of neutron leakage at the Fukushima nuclear plant from measurements of radioactive 35S in California |journal=Proceedings of the National Academy of Sciences |date=15 August 2011 |volume=108 |issue=35 |pages=14422–14425 |doi=10.1073/pnas.1109449108 |pmid=21844372 |pmc=3167508 |doi-access=free }}</ref> Recently the method determined melting rates of the Tibetan Himalayan glaciers, the source of drinking water of 40% of the Earth's population.<ref>{{cite journal |last1=Lin |first1=Mang |last2=Wang |first2=Kun |last3=Kang |first3=Shichang |last4=Thiemens |first4=Mark H. |title=Simple Method for High-Sensitivity Determination of Cosmogenic 35S in Snow and Water Samples Collected from Remote Regions |journal=Analytical Chemistry |date=15 March 2017 |volume=89 |issue=7 |pages=4116–4123 |doi=10.1021/acs.analchem.6b05066 |pmid=28256822 }}</ref> Thiemens has recently shown with his colleagues the first detection of superconductivity in nature, in this case in meteorites.<ref name=pmid32205433/>
+Using mass independent oxygen isotopes Thiemens and colleagues have applied them to further identify N<sub>2</sub>O sources. Thiemens developed the ability to measure naturally produced <sup>35</sup>S (87-day half-life) to provide the first trans Pacific atmospheric Fukushima emissions and calculate the reactor neutronicity.<ref>{{Cite web|url=https://earthsky.org/earth/first-quantitative-measure-of-radiation-leaked-from-fukushima-reactor|title=Tracking the radiation released from Fukushima &#124; Earth &#124; EarthSky|date=15 August 2011}}</ref><ref>{{cite journal |last1=Priyadarshi |first1=A. |last2=Dominguez |first2=G. |last3=Thiemens |first3=M. H. |title=Evidence of neutron leakage at the Fukushima nuclear plant from measurements of radioactive 35S in California |journal=Proceedings of the National Academy of Sciences |date=15 August 2011 |volume=108 |issue=35 |pages=14422–14425 |doi=10.1073/pnas.1109449108 |pmid=21844372 |pmc=3167508 |bibcode=2011PNAS..10814422P |doi-access=free }}</ref> Recently the method determined melting rates of the Tibetan Himalayan glaciers, the source of drinking water of 40% of the Earth's population.<ref>{{cite journal |last1=Lin |first1=Mang |last2=Wang |first2=Kun |last3=Kang |first3=Shichang |last4=Thiemens |first4=Mark H. |title=Simple Method for High-Sensitivity Determination of Cosmogenic 35S in Snow and Water Samples Collected from Remote Regions |journal=Analytical Chemistry |date=15 March 2017 |volume=89 |issue=7 |pages=4116–4123 |doi=10.1021/acs.analchem.6b05066 |pmid=28256822 }}</ref> Thiemens has recently shown with his colleagues the first detection of superconductivity in nature, in this case in meteorites.<ref name=pmid32205433/>
 == Service ==
 Besides his service as Chair and Dean, Thiemens has been active in external service:
-* Board of Directors, San Diego State University Research Foundation, 2006-2009
+* Board of directors, San Diego State University Research Foundation, 2006-2009
 * City of San Diego Science Advisory Board (2002-2005)
 * San Diego Natural History Museum Board of Trustees (2001-2006)
@@ Line 65: / Line 65: @@
 * Kyoto Prize Symposium San Diego organizing committee, UCSD Lead. 2006-2016.
 * Council, The Meteoritical Society, 2008-2011.
-* Committee on the Significance of International Transport of Air Pollutants (2008-2009) '''National Research Council'''. (''Global Sources of Local Pollution Report'')
+* Committee on the Significance of International Transport of Air Pollutants (2008-2009) National Research Council. (''Global Sources of Local Pollution Report'')
-* Understanding the Impact of Selling the Helium Reserve (2008-2009). National Research Council (''Selling the Nations Helium Reserve Report'') '''National Research Council'''
+* Understanding the Impact of Selling the Helium Reserve (2008-2009). National Research Council (''Selling the Nations Helium Reserve Report'') National Research Council
-* Planetary Protection Committee. Mars Sample Return (2008-2009). '''National Research Council''' (''Assessment of Planetary Protection for Mars Sample Return Mission'')
+* Planetary Protection Committee. Mars Sample Return (2008-2009). National Research Council (''Assessment of Planetary Protection for Mars Sample Return Mission'')
-* Committee for Planetary Protection Standards for Icy Bodies in the Outer Solar System (2011) '''National Research Council'''
+* Committee for Planetary Protection Standards for Icy Bodies in the Outer Solar System (2011) National Research Council
-* Board on Energy and Environmental Systems 2009-2016. '''National Academy of Sciences'''.
+* Board on Energy and Environmental Systems 2009-2016. National Academy of Sciences.
 * Searching for Life Across Space and Time. (2016-2017). Space Science Board Requested study.
-* Space Sciences Board (2014–present). '''National Academy of Sciences'''
+* Space Sciences Board (2014–present). National Academy of Sciences
-* Executive Committee, Space Sciences Board (2018—present) '''National Academy of Sciences.'''
+* Executive committee, Space Sciences Board (2018—present) National Academy of Sciences.
-* Associate Editor, <u>Proceedings National Academy of Sciences</u>, 2007 to present. '''National Academy of Sciences'''
+* Associate editor, ''Proceedings National Academy of Sciences'', 2007 to present. National Academy of Sciences
 == Honors ==
@@ Line 105: / Line 105: @@
 * Gauss Professorship, Göttingen Academy of Sciences, Germany (2017)
 * Gauss Professorship, Göttingen Academy of Sciences, Germany (2020)
+* Foreign Member, Royal Society (2024)
 ==References==
@@ Line 112: / Line 113: @@
 *[https://scholar.google.co.uk/scholar?hl=en&as_sdt=0%2C5&q=Mark+H.+Thiemens&btnG= Mark H. Thiemens at Google Scholar]
 *[http://www.nasonline.org/member-directory/members/3007829.html Mark H. Thiemens at National Academy of Sciences]
+{{FRS 2024}}{{authority control}}
-{{authority control}}
 {{DEFAULTSORT:Thiemens, Mark H.}}
@@ Line 120: / Line 120: @@
 [[Category:Atmospheric chemists|Mark H. Thiemens]]
 [[Category:Members of the United States National Academy of Sciences|Mark H. Thiemens]]
-[[Category:Planetary scientists]]
+[[Category:American planetary scientists]]
 [[Category:1950 births]]
 [[Category:Living people]]
+[[Category:Recipients of the V. M. Goldschmidt Award]]

v t e Fellows of the Royal Society elected in 2024
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