Abstract
Research Article| March 01, 2008 Upheaval Dome, Utah, USA: Impact origin confirmed Elmar Buchner; Elmar Buchner 1Institut für Planetologie, Universität Stuttgart, 70174 Stuttgart, Germany Search for other works by this author on: GSW Google Scholar Thomas Kenkmann Thomas Kenkmann 2Museum für Naturkunde-Mineralogie, Humboldt-Universität zu Berlin, 10115 Berlin, Germany Search for other works by this author on: GSW Google Scholar Geology (2008) 36 (3): 227–230. https://doi.org/10.1130/G24287A.1 Article history received: 27 Jul 2007 rev-recd: 02 Nov 2007 accepted: 06 Nov 2007 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Elmar Buchner, Thomas Kenkmann; Upheaval Dome, Utah, USA: Impact origin confirmed. Geology 2008;; 36 (3): 227–230. doi: https://doi.org/10.1130/G24287A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Upheaval Dome is a unique circular structure on the Colorado Plateau in SE Utah, the origin of which has been controversially discussed for decades. It has been interpreted as a crypto volcanic feature, a salt diapir, a pinched-off salt diapir, and an eroded impact crater. While recent structural mapping, modeling, and analyses of deformation mechanisms strongly support an impact origin, ultimate proof, namely the documentation of unambiguous shock features, has yet to be successfully provided. In this study, we document, for the first time, shocked quartz grains from this crater in sandstones of the Jurassic Kayenta Formation. The investigated grains contain multiple sets of decorated planar deformation features. Transmission electron microscopy (TEM) reveals that the amorphous lamellae are annealed and exhibit dense tangles of dislocations as well as trails of fluid inclusions. The shocked quartz grains were found in the periphery of the central uplift in the northeastern sector of the crater, which most likely represents the cross range crater sector. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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