Antarctic Glacial History from Analyses of Ice-Rafted Deposits in Marine Sediments: New Model and Initial Tests

Contrasts between the latitudinal distributions of ice-rafted debris deposited in deep-sea sediments during Pleistocene glacial and interglacial periods are predicted by a new model. The model requires the existence of a restricted zone where rates of deposition of ice-rafted debris are essentially...

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Bibliographic Details
Published in:Science
Main Authors: Watkins, Norman D., Keany, John, Ledbetter, Michael T., Huang, Ter-Chien
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1974
Subjects:
Antarctic
Southern Ocean
Antarc*
Online Access:http://dx.doi.org/10.1126/science.186.4163.533
https://www.science.org/doi/pdf/10.1126/science.186.4163.533
Description
Summary:Contrasts between the latitudinal distributions of ice-rafted debris deposited in deep-sea sediments during Pleistocene glacial and interglacial periods are predicted by a new model. The model requires the existence of a restricted zone where rates of deposition of ice-rafted debris are essentially independent of glacial-interglacial cycles. Initial tests and published results show that the concept is valid in the Southern Ocean and that it provides a new means of diagnosing major migrations of climatic zones.

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