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(Article of periodic en Anglais - 1984)

Document title

Oxygen-isotope analyses and Pleistocene ice volumes

Authors(s) and Affiliation(s)

MIX A. C. ; RUDDIMAN W. F. ;

Abstract

The oxygen-isotope record from fossil foraminifera in deep-sea sediments is commonly used as a proxy for global ice volume. The linkage between O and ice volume, however, is probably nonlinear. The AA. have developed a simple numerical model of the isotopic response of the oceans to ice-volume change. They illustrate the response of their model to simple hypothetical ice-volume transitions of ice growth and ice decay. Sensitivity tests are illustrated for all model parameters. The results suggest that oxygen-isotope records reproduce the general patterns on ice-volume change fairly accurately. The foraminiferal isotope record, however, may misrepresent the true amplitude of the ice-volume signal and lag true ice volume by 1000 to 3000 yr.

Source

Article of periodic

published at : Quaternary research New York

Editor :

Millesime : 1984, vol. 21, no1 [pp. 1-20]

Bibliographic references : 80 réf.

Language

Anglais

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