Touchard, Yannick; Fuller, Michael (2004): Magnetostratigraphy of the Pliocene-Pleistocene sequence and of the Eocene-Oligocene transition at ODP Leg 189 Hole 1168. American Geophysical Union, Washington, DC, United States, In: Exon, Neville F. (editor), Kennett, James P. (editor), Malone, Mitchell (editor), The Cenozoic Southern Ocean; tectonics, sedimentation, and climate change between Australia and Antarctica, 151, 79-92, georefid:2005-035025

Abstract:
The magnetostratigraphy of the Cenozoic at Site 1168 is based upon the composite study of onboard long-core measurements and of 532 additional discrete samples from the Eocene-Oligocene sequence measured onshore. Rock magnetism experiments indicate that the magnetic mineralogy does not vary down-hole and is mainly represented by coarse detrital grains from the (titano)magnetite series. Alternating field demagnetization up to 120 mT was used to separate the magnetic component from the discrete samples. An interpretation is also proposed for the overlying magnetozones, although they are not easily correlated with the expected upper Oligocene magnetostratigraphic framework. This study helps to the constraint on the timing of the Cenozoic evolution of the climatic system form "Green-house" to "Ice-house" conditions which marks the final tectonic separation of Australia from Antarctica. (modif. j. abstr.)
Coverage:
West: 144.2400 East: 144.2500 North: -42.3600 South: -42.3700
Relations:
Expedition: 189
Site: 189-1168
Data access:
Provider: SEDIS Publication Catalogue
Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=2005-035025 (c.f. for more detailed metadata)
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