期刊
QUATERNARY GEOCHRONOLOGY
卷 4, 期 4, 页码 335-343出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.quageo.2009.02.003
关键词
OSL dating; Paleoshorelines; Lagkor Tso; Tibet
资金
- HKU CRCG
- HKSAR, China [HKU 7001/03P, 7032/05P, 7035/06P]
Lagkor Tso, a saline lake located south of Gertse in western Tibet exhibits spectacular flights of paleoshorelines. Optically stimulated luminescence (OSL) dating on quartz using the single-aliquot regenerative-dose (SAR) protocol from five paleoshoreline deposits shows that the lake level was 130 m higher than the present lake surface 5.2 ka ago. The lake level dropped rapidly by similar to 25 m between 5.2 ka and 3.7 ka ago. Lake shrinkage further accelerated between 3.7 ka and 3.2 ka ago, when the lake level was just similar to 74 m above the present lake surface. Luminescence characteristics and problematic samples are discussed. (C) 2009 Elsevier Ltd. All rights reserved.
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