Timing, Duration, and Transitions of the Last Interglacial Asian Monsoon
Top Cited Papers
- 23 April 2004
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 304 (5670) , 575-578
- https://doi.org/10.1126/science.1091220
Abstract
Thorium-230 ages and oxygen isotope ratios of stalagmites from Dongge Cave, China, characterize the Asian Monsoon and low-latitude precipitation over the past 160,000 years. Numerous abrupt changes in 18O/16O values result from changes in tropical and subtropical precipitation driven by insolation and millennial-scale circulation shifts. The Last Interglacial Monsoon lasted 9.7 ± 1.1 thousand years, beginning with an abrupt (less than 200 years) drop in 18O/16O values 129.3 ± 0.9 thousand years ago and ending with an abrupt (less than 300 years) rise in 18O/16O values 119.6 ± 0.6 thousand years ago. The start coincides with insolation rise and measures of full interglacial conditions, indicating that insolation triggered the final rise to full interglacial conditions.Keywords
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