Andres, Miriam S. and McKenzie, Judith A. (2004): Late Pleistocene oxygen and carbon isotope stratigraphy in bulk- and fine-fraction carbonate from the Great Australian Bight, ODP Leg 182, Site 1127

Leg/Site/Hole:
ODP 182
ODP 182 1127
Identifier:
2005-041675
georefid
10.2973/odp.proc.sr.182.015.2002
doi
Creator:
Andres, Miriam S.
Eidgenoessische Technische Hochschule-Zentrum, Geological Institute, Zurich, Switzerland
author
McKenzie, Judith A.
Australian Geological Survey Organisation, Australia
author
Identification:
Late Pleistocene oxygen and carbon isotope stratigraphy in bulk- and fine-fraction carbonate from the Great Australian Bight, ODP Leg 182, Site 1127
2004
In: Hine, Albert C., Feary, David A., Malone, Mitchell J., Andres, Miriam, Betzler, Christian, Brooks, Gregg R., Brunner, Charlotte A., Fuller, Michael, Molina Garza, Roberto S., Holbourn, Ann E., Huuse, Mads, Isern, Alexandra R., James, Noel P., Ladner, Bryan C., Li, Qianyu, Machiyama, Hideaki, Mallinson, David J., Matsuda, Hiroki, Mitterer, Richard M., Robin, Cecile, Russell, Joellen L., Shafik, Samir, Simo, J. A., Smart, Peter L., Spence, Guy H., Surlyk, Finn C., Swart, Peter K., Wortmann, Ulrich G., Proceedings of the Ocean Drilling Program; scientific results; Great Australian Bight; Cenozoic cool-water carbonates; covering Leg 182 of the cruises of the drilling vessel JOIDES Resolution; Wellington, New Zealand, to Fremantle, Australia; Sites 1126-1134, 8 October-7 December 1998
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
182
The aim of this study was to evaluate the potential of constructing an oxygen and carbon isotope stratigraphy for the late Pleistocene succession from Hole 1127B drilled on the Great Australian Bight. Stable isotope analyses were performed on bulk- and fine-fraction (<38 mu m) sediment samples. The oxygen isotope variations are generally smaller in magnitude than expected from global pelagic records. This is most likely due to the neriticly dominated sediment composition. Correlation of the oxygen isotope data with carbonate mineralogy and downhole logging data shows simultaneous variations and trends, which are particularly evident in the mid-Pleistocene sediments. Correlation of the oxygen isotope data with the classic SPECMAP curve is used to evaluate the stratigraphic potential of the Site 1127 sediments. This study indicates that an isotope stratigraphy based on planktonic and benthic foraminifers is needed to fully evaluate the response of cool-water carbonates deposited in a margin setting to global ice-volume fluctuations and, hence, the associated sea level variations.
English
Serial
Coverage:Geographic coordinates:
North:-33.2127
West:128.2853East: 128.2853
South:-33.2127
Quaternary geology; Isotope geochemistry; Australasia; Australia; C-13/C-12; carbon; carbonate sediments; Cenozoic; chemostratigraphy; climate change; cores; Great Australian Bight; Indian Ocean; isotope ratios; isotopes; Leg 182; marine sediments; O-18/O-16; Ocean Drilling Program; ocean floors; ODP Site 1127; oxygen; paleo-oceanography; paleoenvironment; Pleistocene; Quaternary; reconstruction; sediments; stable isotopes; upper Pleistocene;
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