Earliest Carboniferous cooling step triggered by the Antler orogeny?

Abstract

Research Article| April 01, 2000 Earliest Carboniferous cooling step triggered by the Antler orogeny? Matthew R. Saltzman; Matthew R. Saltzman 1Department of Geoscience, University of Iowa, Iowa City, Iowa 52242, USA Search for other works by this author on: GSW Google Scholar Luis A. González; Luis A. González 1Department of Geoscience, University of Iowa, Iowa City, Iowa 52242, USA Search for other works by this author on: GSW Google Scholar Kyger C Lohmann Kyger C Lohmann 2Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48104, USA Search for other works by this author on: GSW Google Scholar Geology (2000) 28 (4): 347–350. https://doi.org/10.1130/0091-7613(2000)28<347:ECCSTB>2.0.CO;2 Article history received: 16 Nov 1999 rev-recd: 12 Jan 2000 accepted: 24 Jan 2000 first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Matthew R. Saltzman, Luis A. González, Kyger C Lohmann; Earliest Carboniferous cooling step triggered by the Antler orogeny?. Geology 2000;; 28 (4): 347–350. doi: https://doi.org/10.1130/0091-7613(2000)28<347:ECCSTB>2.0.CO;2 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 We report a large, positive, carbon isotope excursion in the Kinderhookian Stage of the Lower Mississippian in North America and propose that the excursion is linked to the Antler orogeny. The δ13C excursion reaches +7.1‰ in the upper part of the Joana Limestone in southeast Nevada and correlates with peaks recognized in Europe and elsewhere in North America. This isotopic shift, one of the largest known Phanerozoic δ13C events, is found within the upper part of the Siphonodella isosticha–Upper crenulata conodont Zone; its formation coincided with a time of rapid subsidence of the Joana platform within the Antler foreland basin. We interpret the large changes in δ13C values to reflect enhanced organic carbon burial rates in response to tectonic deepening followed by creation of a restricted water mass at depth in the Antler foredeep and other foredeeps of similar age. The presence of a large δ13C excursion in the upper part of the S. isosticha Zone is consistent with a late Kinderhookian (Tournaisian) glacial episode. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.