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(Article of periodic en Anglais - 1985)

Document title

Quaternary fluctuations in the northern hemisphere trade winds and westerlies

Authors(s) and Affiliation(s)

JANECEK T. R. ; REA D. K. ;

Abstract

The mass accumulation and grain size of the total eolian component isolated from pelagic sediment in two North Pacific cores have been used to evaluate changes in the intensity of atmospheric circulation and source-area aridity over the past 700,000 yr. Periodicities are recognized similor to those calculated for the earth's orbital parameters of precession, obliquity, and eccentricity, or similar to those of the glacial-interglacial cycles. Lower eolian accumulation rates during colder times most likely reflect increased glacial-age humidity at central Asian and Central American source areas.

Source

Article of periodic

published at : Quaternary research New York

Editor :

Millesime : 1985, vol. 24, no2 [pp. 150-163]

Bibliographic references : 73 réf.

Language

Anglais

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