Antarctic Glaciation during the Tertiary Recorded in Sub-Antarctic Deep-Sea Cores

Study of 18 Cenozoic South Pacific deep-sea cores indicates an association of glacially derived ice-rafted sands and relatively low planktonic foraminiferal diversity with cooling of the Southern Ocean during the Lower Eocene, upper Middle Eocene, and Oligocene. Increased species diversity and reduc...

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Bibliographic Details
Published in:Science
Main Authors: Margolis, Stanley V., Kennett, James P.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1970
Subjects:
Antarctic
Pacific
Southern Ocean
Antarc*
Online Access:http://dx.doi.org/10.1126/science.170.3962.1085
https://www.science.org/doi/pdf/10.1126/science.170.3962.1085
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Summary:Study of 18 Cenozoic South Pacific deep-sea cores indicates an association of glacially derived ice-rafted sands and relatively low planktonic foraminiferal diversity with cooling of the Southern Ocean during the Lower Eocene, upper Middle Eocene, and Oligocene. Increased species diversity and reduction or absence of ice-rafted sands in Lower and Middle Miocene cores indicate a warming trend that ended in the Upper Miocene. Antarctic continental glaciation appears to have prevailed throughout much of the Cenozoic.

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