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Yuan et al. 2004 Dongge Cave Stalagmite Oxygen Isotope Data |
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Yuan, D.;Cheng, H.;Edwards, R.L.;Dykoski, C.A.;Kelly, M.J.;Zhang, M.;Qing, J.;Lin, Y.;Wang, Y.;Wu, J.;Dorale, J.A.;An, Z.;Cai, Y. 2004 Timing, Duration, and Transitions of the Last Interglacial Asian Monsoon Science Vol. 304, Issue 5670, 575-578, 23 April 2004
Start Year: -161550 AD End Year: 1834 AD Data: Please Cite Data Contributors!
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Summary: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.More Info on Speleothems |
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Complete XML Record:noaa-cave-5427 (Last Revised: 2009-02-11 ) |
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