Journal article

Variations of the northwest Australian summer monsoon over the last 300,000 years: the paleohydrological record of the Gregory (Mulan) Lakes System

JM Bowler, KH Wyrwoll, YC Lu

QUATERNARY INTERNATIONAL | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2001

Abstract

Monsoon rains in the Kimberley region feed an interconnected chain of lake basins, the Gregory Lakes system in northwestern Australia, a terminal system surrounded by dunefields of the Great Sandy Desert. This semi-arid region records a sequence of Quaternary climatic changes, at times much wetter, at times much drier than today. A morphostragraphic sequence defines episodic formation of dunes and related sediments reflecting past hydrologic and climatic changes which caused them. Thermoluminescence dating provides a broad temporal framework identifying major hydrologic changes of the past 300 ka. Ancient foreshore dunes define shorelines of mega-lake phases, the largest of which covered som..

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