Title: Testing for ice sheets during the mid-Cretaceous greenhouse using glassy foraminiferal calcite from the mid-Cenomanian tropics on Demerara Rise
Abstract: Research Article| July 01, 2007 Testing for ice sheets during the mid-Cretaceous greenhouse using glassy foraminiferal calcite from the mid-Cenomanian tropics on Demerara Rise Kazuyoshi Moriya; Kazuyoshi Moriya 1National Oceanography Centre, Southampton, School of Ocean & Earth Science, European Way, Southampton SO14 3ZH, UK Search for other works by this author on: GSW Google Scholar Paul A. Wilson; Paul A. Wilson 1National Oceanography Centre, Southampton, School of Ocean & Earth Science, European Way, Southampton SO14 3ZH, UK Search for other works by this author on: GSW Google Scholar Oliver Friedrich; Oliver Friedrich 2Bundesanstalt für Geowissenschaften und Rohstoffe, Stilleweg 2, 30655 Hannover, Germany Search for other works by this author on: GSW Google Scholar Jochen Erbacher; Jochen Erbacher 2Bundesanstalt für Geowissenschaften und Rohstoffe, Stilleweg 2, 30655 Hannover, Germany Search for other works by this author on: GSW Google Scholar Hodaka Kawahata Hodaka Kawahata 3Ocean Research Institute, University of Tokyo, Minamidai, Nakano-ku, Tokyo 164-8639, Japan, and Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Higashi, Tsukuba, Ibaraki 305-8567, Japan Search for other works by this author on: GSW Google Scholar Author and Article Information Kazuyoshi Moriya 1National Oceanography Centre, Southampton, School of Ocean & Earth Science, European Way, Southampton SO14 3ZH, UK Paul A. Wilson 1National Oceanography Centre, Southampton, School of Ocean & Earth Science, European Way, Southampton SO14 3ZH, UK Oliver Friedrich 2Bundesanstalt für Geowissenschaften und Rohstoffe, Stilleweg 2, 30655 Hannover, Germany Jochen Erbacher 2Bundesanstalt für Geowissenschaften und Rohstoffe, Stilleweg 2, 30655 Hannover, Germany Hodaka Kawahata 3Ocean Research Institute, University of Tokyo, Minamidai, Nakano-ku, Tokyo 164-8639, Japan, and Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Higashi, Tsukuba, Ibaraki 305-8567, Japan Publisher: Geological Society of America Received: 06 Dec 2006 Revision Received: 21 Feb 2007 Accepted: 24 Feb 2007 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2007) 35 (7): 615–618. https://doi.org/10.1130/G23589A.1 Article history Received: 06 Dec 2006 Revision Received: 21 Feb 2007 Accepted: 24 Feb 2007 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Kazuyoshi Moriya, Paul A. Wilson, Oliver Friedrich, Jochen Erbacher, Hodaka Kawahata; Testing for ice sheets during the mid-Cretaceous greenhouse using glassy foraminiferal calcite from the mid-Cenomanian tropics on Demerara Rise. Geology 2007;; 35 (7): 615–618. doi: https://doi.org/10.1130/G23589A.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 The mid-Cretaceous is widely considered the archetypal ice-free greenhouse interval in Earth history, with a thermal maximum around Cenomanian-Turonian boundary time (ca. 90 Ma). However, contemporaneous glaciations have been hypothesized based on sequence stratigraphic evidence for rapid sea-level oscillation and oxygen isotope excursions in records generated from carbonates of questionable preservation and/or of low resolution. We present new oxygen isotope records for the mid-Cenomanian Demerara Rise that are of much higher resolution than previously available, taken from both planktic and benthic foraminifers, and utilizing only extremely well preserved glassy foraminifers. Our records show no evidence of glaciation, calling into question the hypothesized ice sheets and rendering the origin of inferred rapid sea-level oscillations enigmatic. Simple mass-balance calculations demonstrate that this Cretaceous sea-level paradox is unlikely to be explained by hidden ice sheets existing below the limit of δ18O detection. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 103
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