Utah Geological Survey

Crystal Geyser is a cold water geyser near Green River. Although technically not a true geyser, these cold-water eruptions look so much like hot-water geysers that they are called “soda pop geysers.”–http://ow.ly/ncMf50FWesY #utahgeology #geosight

Are you exploring Utah's rivers and streams this August? Before you head out, check out our selection of river guides and maps at the Natural Resources Map & Bookstore. Whether you're into fishing, or kayaking there's something for everyone. Visit us at 1594 West North Temple in SLC or at utahmapstore.com. #shoplocal #utahmapstore

Happy Fossil Friday! A double track of hadrosaur (plant-eating duck-billed dinosaur) footprints preserved as natural casts in an Iron Springs Formation boulder along the trail at the Parowan Gap Dinosaur Track Site. The scale bar on the left is 6.5 inches long—photo by Jim Kirkland. #fossilfriday #utahgeology

What are the oldest rocks in Utah? Utah’s oldest rocks formed during the Precambrian, a time in Earth’s history that occurred 4,600 to 540 million years ago and was characterized by simple, single-celled organisms before the “Cambrian Explosion” of complex organisms around 540 million years ago. Discover more in this Glad You Asked article–http://ow.ly/SUS050KSVJt #utahgeology

Photo of the Week: Uinta-Wasatch–Cache National Forest, Summit County, Utah Photographer: Adam Hiscock Reids Peak (11,708 feet) and Bald Mountain (11,943 feet) consist of the late Precambrian-age Mount Watson Formation, part of the Uinta Mountain Group which forms the core of the Uinta Mountains. The spectacular scenery and vistas of the Uinta Mountains result from numerous glacial cycles during the Quaternary Period. #utahgeology

New publication: Interim geologic map of the Fort Douglas quadrangle, Salt Lake, Davis, and Morgan Counties, Utah, by Zachary W. Anderson1, Adam P. McKean1, and W. Adolph Yonkee, 32 p., 2 plates, scale 1:24,000, OFR-767. See publication details at: https://lnkd.in/ge2pyk44 #geology #utahgeology #geomapping

Gneiss is a high-grade (high heat and pressure) metamorphic rock in which the foliation results from a layering of different mineral groups, which give this rock a banded look of dark (mica, amphibole, and other iron-magnesium minerals) and light (quartz and feldspar) minerals. Good examples of gneiss are visible in the Farmington Canyon Complex in Farmington Canyon and at Frary Peak on Antelope Island, both in Davis County. Photo: Folded pegmatite vein in Farmington Canyon Complex gneiss, Pearsons Canyon, Box Elder County, Utah. Photographer: Adam McKean #utahgeology

Located on the western flank of the San Rafael Swell, Moore Cutoff travels across and through a sequence of some of Utah’s most famous geologic formations. From the Ferron Sandstone Member of the Mancos Shale down to the Navajo Sandstone, these rock layers represent nearly 100 million years of Utah’s geologic history. See what you can find in this unique geosight location. http://ow.ly/hvHb50Fu2TS #utahgeology #geosights

Dive into the rich geological history of one of Utah’s most iconic mountain ranges with "A Hiking Guide to the Geology of the Wasatch Mountains". Perfect for both geology enthusiasts and outdoor adventurers! Get ready to explore and understand the landscapes you love. Discover more books and maps at the Natural Resources Map & Bookstore – 1594 West North Temple in Salt Lake City or online at utahmapstore.com #utahgeology

Happy early #FossilFriday! Curious about what goes on during a dinosaur dig? The UGS is streaming live with Paleontologizing from 3 - 5 pm MST from Doelling's Bowl bonebed. Check it out here–https://lnkd.in/gGEhSNs4 #utahgeology #utahpaleontology