Reassessment of Lake Victoria–Upper Nile River paleohydrology from oxygen isotope records of lake-sediment cellulose

Abstract

Research Article| June 01, 2002 Reassessment of Lake Victoria–Upper Nile River paleohydrology from oxygen isotope records of lake-sediment cellulose Kristina R.M. Beuning; Kristina R.M. Beuning 1Department of Biology, Room 360, Phillips Science Hall, University of Wisconsin, Eau Claire, Wisconsin 54701, USA Search for other works by this author on: GSW Google Scholar Kerry Kelts; Kerry Kelts 2Limnological Research Center, University of Minnesota, 310 Pillsbury Drive SE, Minneapolis, Minnesota 55455, USA Search for other works by this author on: GSW Google Scholar Jim Russell; Jim Russell 2Limnological Research Center, University of Minnesota, 310 Pillsbury Drive SE, Minneapolis, Minnesota 55455, USA Search for other works by this author on: GSW Google Scholar Brent B. Wolfe Brent B. Wolfe 3Department of Earth Sciences, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information Kristina R.M. Beuning 1Department of Biology, Room 360, Phillips Science Hall, University of Wisconsin, Eau Claire, Wisconsin 54701, USA Kerry Kelts 2Limnological Research Center, University of Minnesota, 310 Pillsbury Drive SE, Minneapolis, Minnesota 55455, USA Jim Russell 2Limnological Research Center, University of Minnesota, 310 Pillsbury Drive SE, Minneapolis, Minnesota 55455, USA Brent B. Wolfe 3Department of Earth Sciences, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada Publisher: Geological Society of America Received: 27 Nov 2001 Revision Received: 08 Feb 2002 Accepted: 18 Feb 2002 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2002) 30 (6): 559–562. https://doi.org/10.1130/0091-7613(2002)030<0559:ROLVUN>2.0.CO;2 Article history Received: 27 Nov 2001 Revision Received: 08 Feb 2002 Accepted: 18 Feb 2002 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 Kristina R.M. Beuning, Kerry Kelts, Jim Russell, Brent B. Wolfe; Reassessment of Lake Victoria–Upper Nile River paleohydrology from oxygen isotope records of lake-sediment cellulose. Geology 2002;; 30 (6): 559–562. doi: https://doi.org/10.1130/0091-7613(2002)030<0559:ROLVUN>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 Reconstruction of lake-water δ18O from analysis of cellulose δ18O in two sediment cores from Lake Victoria, East Africa, shows a large shift to lower values during the terminal Pleistocene. This shift records the transition from closed- to open-basin conditions following desiccation at the Last Glacial Maximum. Although oxygen isotope analysis of cellulose from one core had placed this overflow at 8 ka (7200 14C yr B.P.), reevaluation of the age model for this core, in addition to new stratigraphic and chronological evidence from a second core, suggests that basin overflow was established much earlier, ca. 13 ka. Our refined view of the timing of Lake Victoria overflow inferred from the oxygen isotope records is consistent with other paleolimnological studies, indicating that lake-sediment cellulose is an effective and sensitive isotopic archive of major hydrologic events in this region. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.