Low productivity and slow deep-water circulation in mid-Cretaceous oceans

Abstract

Research Article| October 01, 1984 Low productivity and slow deep-water circulation in mid-Cretaceous oceans Timothy J. Bralower; Timothy J. Bralower 1Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093 Search for other works by this author on: GSW Google Scholar Hans R. Thierstein Hans R. Thierstein 1Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093 Search for other works by this author on: GSW Google Scholar Geology (1984) 12 (10): 614–618. https://doi.org/10.1130/0091-7613(1984)12<614:LPASDC>2.0.CO;2 Article history first online: 01 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 Timothy J. Bralower, Hans R. Thierstein; Low productivity and slow deep-water circulation in mid-Cretaceous oceans. Geology 1984;; 12 (10): 614–618. doi: https://doi.org/10.1130/0091-7613(1984)12<614:LPASDC>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 Paleofertility estimates are derived from organic-carbon accumulation rates determined in nonbioturbated mid-Cretaceous deep-sea deposits using organic-carbon preservation factors observed in laminated sediments from anoxic Holocene environments. The estimated mid-Cretaceous primary production rates are as much as an order of magnitude lower than those measured in today's oceans. An evaluation of dissolved oxygen budgets using a simple oceanic circulation model indicates very low deep-water renewal rates in mid-Cretaceous oceans. 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.