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- Hai Cheng
- Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN 55455, USA.
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- R. Lawrence Edwards
- Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN 55455, USA.
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- Wallace S. Broecker
- Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Post Office Box 1000, Palisades, NY 10964–1000, USA.
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- George H. Denton
- Department of Earth Sciences, Bryand Global Sciences Center, Climate Change Institute, University of Maine, Orono, ME 04469, USA.
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- Xinggong Kong
- College of Geography Science, Nanjing Normal University, Nanjing 210097, China.
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- Yongjin Wang
- College of Geography Science, Nanjing Normal University, Nanjing 210097, China.
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- Rong Zhang
- National Oceanic and Atmospheric Administration (NOAA)/Geophysical Fluid Dynamics Laboratory, Princeton, NJ 08540, USA.
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- Xianfeng Wang
- Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN 55455, USA.
抄録
<jats:title>Monsoon Cave Recordings</jats:title> <jats:p> Rocky deposits in caves in central China record the changes over time in the Asian Monsoon through the oxygen isotopic composition of the minerals from which they are formed. These deposits can be precisely dated and provide an absolute time line for climate system changes. <jats:bold> Cheng <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="248" related-article-type="in-this-issue" vol="326" xlink:href="10.1126/science.1177840">248</jats:related-article> ; see the Perspective by <jats:bold> <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="5950" page="240" related-article-type="in-this-issue" vol="326" xlink:href="10.1126/science.1179941">Severinghaus</jats:related-article> </jats:bold> ) present oxygen isotope data from speleothems collected from Sanbao Cave, China, for the three glacial terminations that occurred between 120,000 and 350,000 years ago. The data reveal variations in the amount of precipitation delivered by the Asian Monsoon over time. Comparison of the timing of these changes with corresponding changes in ice core and marine sedimentary records provides mechanistic insights into how variations in insolation affect ice sheets and ice age terminations. </jats:p>
収録刊行物
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- Science
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Science 326 (5950), 248-252, 2009-10-09
American Association for the Advancement of Science (AAAS)