Research Article| April 01, 2013 Chemostratigraphy indicates a relatively complete Late Permian to Early Triassic sequence in the western United States Matthew R. Saltzman; Matthew R. Saltzman * School of Earth Sciences, The Ohio State University, Columbus, Ohio 43210, USA *E-mail: saltzman.11@osu.edu. Search for other works by this author on: GSW Google Scholar Alexa R.C. Sedlacek Alexa R.C. Sedlacek School of Earth Sciences, The Ohio State University, Columbus, Ohio 43210, USA Search for other works by this author on: GSW Google Scholar Geology (2013) 41 (4): 399–402. https://doi.org/10.1130/G33906.1 Article history received: 31 Jul 2012 rev-recd: 10 Oct 2012 accepted: 11 Oct 2012 first online: 09 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 Matthew R. Saltzman, Alexa R.C. Sedlacek; Chemostratigraphy indicates a relatively complete Late Permian to Early Triassic sequence in the western United States. Geology 2013;; 41 (4): 399–402. doi: https://doi.org/10.1130/G33906.1 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 Although the latest Permian mass extinction and associated δ13C excursion are well documented from the Tethys Ocean, carbonate rocks preserving these events in the eastern Panthalassic Ocean (western Pangea) are unknown. We present δ13Ccarb from the Gerster and Thaynes (Permian and Triassic) Formations in the western United States and document a negative excursion with no evidence for major breaks in continuity. To further constrain the age of the δ13Ccarb excursion in the absence of index fossils, we analyzed the same samples for 87Sr/86Sr. When examining our new carbon and Sr data in the context of biostratigraphy and sequence stratigraphy, we conclude that parts of the western United States may preserve carbonate successions that span the latest Permian extinction. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.