Abstract
Research Article| January 01, 1990 High-paleolatitude Late Cretaceous paleotemperatures: New data from James Ross Island, Antarctica D. Pirrie; D. Pirrie 1British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 OET, England Search for other works by this author on: GSW Google Scholar J. D. Marshall J. D. Marshall 2Department of Earth Sciences, Jane Herdmann Laboratories, University of Liverpool, Brownlow Street, P.O. Box 147, Liverpool L69 3BX, England Search for other works by this author on: GSW Google Scholar Geology (1990) 18 (1): 31–34. https://doi.org/10.1130/0091-7613(1990)018<0031:HPLCPN>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation D. Pirrie, J. D. Marshall; High-paleolatitude Late Cretaceous paleotemperatures: New data from James Ross Island, Antarctica. Geology 1990;; 18 (1): 31–34. doi: https://doi.org/10.1130/0091-7613(1990)018<0031:HPLCPN>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 Oxygen-isotope analysis of well-preserved macrofossils from the Santonian-Campanian of James Ross Island and the Maastrichtian of Vega Island, Antarctica, indicates that cool high-paleolatitude temperatures prevailed during the Late Cretaceous and suggests that cooling occurred between the Santonian-Campanian and the Maastrichtian. Although more than 50% of the material showed diagenetic alteration, 52 unaltered aragonite and calcite samples were analyzed. Mean δ18O and calculated paleotemperature values were -0.23‰ and 13.6 °C, respectively, for the Santonian-Campanian, and 0.66‰ and 11.7 °C, respectively, for the Maastrichtian. In conjunction with recent Late Cretaceous paleoclimatic data from high northern paleolatitudes, these data indicate the presence of cool polar regions with broad climatic zonation during the Late Cretaceous. This may have partly controlled faunal distributions. 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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