| Dating of two thermokarst lakes in Beiluhe Basin,Qinghai-Tibetan Plateau |
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| Citation of this paper:ZhanJu Lin,FuJun Niu,Jing Luo,MingHao Liu,GuoAn Yin,2014.Dating of two thermokarst lakes in Beiluhe Basin,Qinghai-Tibetan Plateau.Sciences in Cold and Arid Regions,6(5):0504~0510. |
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| Author Name | Affiliation | E-mail | | ZhanJu Lin | 1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research
Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
2. Key Laboratory of Highway Construction & Maintenance Technology in Per | zhanjulin@lzb.ac.cn | | FuJun Niu | State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research
Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China | | | Jing Luo | State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research
Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China | | | MingHao Liu | State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research
Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China | | | GuoAn Yin | State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research
Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China | |
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| Abstract:Most of the thermokarst lakes are spread appreciably in Beiluhe Basin, Qinghai-Tibet Plateau, China, where ice-rich
permafrost exists. Two typical thermokarst lakes with differing area and depth were examined to ascertain their age. We
obtained lake-bottom samples of 50 cm length from lake BLH-A and 25 cm length from lake BLH-B. Environmental 137Cs
and 210Pb and radiocarbon age dating techniques were applied to the 50 cm and 25 cm samples, respectively. The results
indicate that the initiation of BLH-A is about 800–900 a B.P., and approximately 1,450±30 a B.P. to 2,230±30 a B.P. for
BLH-B. These results will provide scientific bases for sedimentological study and thermokarst activity in Beiluhe Basin. |
| keywords:dating radiocarbon thermokarst lake Beiluhe Basin Qinghai-Tibet Plateau |
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