Research Article| November 01, 1992 Simultaneous changes in carbon isotopes, sea level, and conodont biozones within the Cambrian-Ordovician boundary interval at Black Mountain, Australia Robert L. Ripperdan; Robert L. Ripperdan 1Department of Environmental Science and Energy Research, Weizmann Institute of Science, Rehovot 76-100, Israel Search for other works by this author on: GSW Google Scholar Mordeckai Magaritz; Mordeckai Magaritz 1Department of Environmental Science and Energy Research, Weizmann Institute of Science, Rehovot 76-100, Israel Search for other works by this author on: GSW Google Scholar Robert S. Nicoll; Robert S. Nicoll 2Onshore Sedimentary and Petroleum Geology Program, Bureau of Mineral Resources, Geology and Geophysics, Canberra A.C.T., Australia Search for other works by this author on: GSW Google Scholar John H. Shergold John H. Shergold 2Onshore Sedimentary and Petroleum Geology Program, Bureau of Mineral Resources, Geology and Geophysics, Canberra A.C.T., Australia Search for other works by this author on: GSW Google Scholar Geology (1992) 20 (11): 1039–1042. https://doi.org/10.1130/0091-7613(1992)020<1039:SCICIS>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Robert L. Ripperdan, Mordeckai Magaritz, Robert S. Nicoll, John H. Shergold; Simultaneous changes in carbon isotopes, sea level, and conodont biozones within the Cambrian-Ordovician boundary interval at Black Mountain, Australia. Geology 1992;; 20 (11): 1039–1042. doi: https://doi.org/10.1130/0091-7613(1992)020<1039:SCICIS>2.3.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 Carbon isotope profiles of marine carbonate units within the Cambrian-Ordovician boundary section at Black Mountain, western Queensland, Australia, reveal cyclical changes in δ13C within the Georgina basin during the boundary interval. Minimum values in the δ13C profile are found in strata bearing lithostratigraphic evidence for sea-level drop and also correlate strongly with conodont assemblage zone boundaries. These relations indicate that direct mechanistic links existed between carbon cycles, changes in sea level, and conodont evolution. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal 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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Ripperdan et al. (1992) studied this question.