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Cosmogenic radionuclide evidence for the limited extent of last glacial maximum glaciers in the Tanggula Shan of the central Tibetan Plateau |
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| Authors: | Patrick M Colgan Jeffrey S Munroe |
| Institution: | a Department of Geology, Grand Valley State University, 1 Campus Drive, Allendale, MI 49401, USA b Department of Geology, Middlebury College, Middlebury, VT 05753, USA c Department of Geography, South China Normal University, Guangzhou, PR China |
| Abstract: | Cosmogenic radionuclide (CRN) exposure ages provide evidence for the limited extent of last glacial maximum glaciers in the Tanggula Shan, central Tibetan Plateau. The most extensive advances occurred during or before marine oxygen isotope stage 6 (MIS-6) based on previous CRN exposure ages. The second most extensive advance occurred during or before MIS-4 based on previous ages and new ages of 41,400 ± 4300, and 66,800 ± 7100 10Be yr. A MIS-2 advance of less than 3 km occurred between 31,900 ± 3400 and 16,000 ± 1700 10Be yr. |
| Keywords: | Cosmogenic radionuclide Tibetan Plateau Glacial geology Paleoclimatology Quaternary Period |
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