Early-mid-Pleistocene oxygen isotope stratigraphy from the Atlantic sector of the Southern Ocean; ODP Leg 177 sites 1094 and 1091

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doi: 10.2973/odp.proc.sr.177.114.2003
Author(s): Kleiven, Helga Flesche; Jansen, Eystein
Ocean Drilling Program, Leg 177, Shipboard Scientific Party, College Station, TX
Author Affiliation(s): Primary:
University of Bergen, Institute of Geology, Bergen, Norway
Other:
University of Florida, United States
Ocean Drilling Program, United States
University of Bergen, Norway
University of Durham, United Kingdom
University of California at Santa Cruz, United States
Scripps Institution of Oceanography, United States
Indiana University at Purdue, United States
Universidad de Salamanca, Spain
University of New Brunswick, Canada
University of Tasmania, Australia
Hokkaido University, Japan
Florida State University, United States
University of Southampton, United Kingdom
Georgia Institute of Technology, United States
Universita di Bari, Italy
Wesleyan University, United States
Lamont-Doherty Earth Observatory, United States
Nagoya University, Japan
California State University, United States
Volume Title: Proceedings of the Ocean Drilling Program, scientific results; Southern Ocean paleoceanography; covering Leg 177 of the cruises of the drilling vessel JOIDES Resolution; Cape Town, South Africa, to Punta Arenas, Chile; sites 1088-1094; 9 December 1997-5 February 1998
Volume Author(s): Gersonde, Rainer; Hodell, David A.; Blum, Peter; Andersson, Carin; Austin, William E. N.; Billups, Katharina; Channell, James E. T.; Charles, Christopher D.; Diekmann, Bernhard; Filippelli, Gabriel M.; Flores, José-Abel; Hewitt, Antony T.; Howard, William R.; Ikehara, Minoru; Janecek, Thomas R.; Kanfoush, Sharon L.; Kemp, Alan E. S.; King, Stagg L.; Kleiven, Helga Flesche; Kuhn, Gerhard; Marino, Maria; Ninnemann, Ulysses S.; O'Connell, Suzanne; Ortiz, Joseph D.; Stoner, Joseph S.; Sugiyama, Kazuhiro; Warnke, Detlef A.; Zielinski, Ulrich
Source: Proceedings of the Ocean Drilling Program, scientific results; Southern Ocean paleoceanography; covering Leg 177 of the cruises of the drilling vessel JOIDES Resolution; Cape Town, South Africa, to Punta Arenas, Chile; sites 1088-1094; 9 December 1997-5 February 1998, Rainer Gersonde, David A. Hodell, Peter Blum, Carin Andersson, William E. N. Austin, Katharina Billups, James E. T. Channell, Christopher D. Charles, Bernhard Diekmann, Gabriel M. Filippelli, José-Abel Flores, Antony T. Hewitt, William R. Howard, Minoru Ikehara, Thomas R. Janecek, Sharon L. Kanfoush, Alan E. S. Kemp, Stagg L. King, Helga Flesche Kleiven, Gerhard Kuhn, Maria Marino, Ulysses S. Ninnemann, Suzanne O'Connell, Joseph D. Ortiz, Joseph S. Stoner, Kazuhiro Sugiyama, Detlef A. Warnke and Ulrich Zielinski; Ocean Drilling Program, Leg 177, Shipboard Scientific Party, College Station, TX. Proceedings of the Ocean Drilling Program, Scientific Results (CD ROM), Vol.177, 20p. Publisher: Texas A&M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 1096-2514
Note: In English. Data report; available only on CD-ROM in PDF format and on the Web in PDF or HTML. 10 refs.CD-ROM format, ISSN 1096-2514; WWW format, ISSN 1096-7451; illus., incl. 3 tables, sketch map
Summary: Ocean Drilling Program (ODP) cores permit us to extend the study of millennial-scale climate variability beyond the time period that is generally accessible for piston cores. ODP Leg 177 provided for the first time continuous high sedimentation rate cores along a north-south transect from 41° to 53°S across the main subdivisions of the Southern Ocean. The main purpose of this drilling was to investigate the Pleistocene and Holocene paleoceanographic history of this region, documented in the sedimentary records. ODP Sites 1094, 1093, 1091, and 1089 accumulated throughout the Pleistocene at rates >10 cm/k.y. and are the most detailed Pleistocene climatic records ever retrieved from the Southern Ocean. These sections provide a unique opportunity to fill an important gap in the knowledge of the paleoclimatic evolution of the high southern latitude regions. The composite sections at each site were generated shipboard using magnetic susceptibility, gamma ray attenuation (GRA) density, and reflectance data to correlate the drill holes and splice together an optimal (complete and undisturbed) record of the sedimentary sequence at each site. A preliminary magnetic polarity stratigraphy was generated on the "archive" halves of the core sections from each hole, using the shipboard pass-through magnetometer after demagnetization at a single peak alternating field.
Year of Publication: 2003
Research Program: ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Cenozoic; Chemostratigraphy; Climate change; Cores; Foraminifera; Invertebrata; Isotope ratios; Isotopes; Leg 177; Lower Pleistocene; Microfossils; Middle Pleistocene; O-18/O-16; ODP Site 1091; ODP Site 1094; Ocean Drilling Program; Oxygen; Paleo-oceanography; Paleoenvironment; Pleistocene; Protista; Quaternary; Reconstruction; Sedimentation; Sedimentation rates; Southern Ocean; Stable isotopes
Coordinates: S470541 S470541 E0055509 E0055509
S531049 S531049 E0050749 E0050749
Record ID: 2003053340
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