Cosmogenic radionuclide evidence for the limited extent of last glacial maximum glaciers in the Tanggula Shan of the central Tibetan Plateau

摘要

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 Be-10 yr. A MIS-2 advance of less than 3 km occurred between 31,900 +/- 3400 and 16,000 +/- 1700 Be-10 yr. (c) 2005 University of Washington. All rights reserved.