Exposure age dating of Chinese tiankengs by 36Cl-AMS
| Autor: | Baojian Huang, Haihui Lan, Qingzhang Zhao, Yongfu Qin, Lisha Chen, Tetsuya Matsunaka, Shan Jiang, Yongjin Guan, Maki Honda, Huijin Lu, Ming He, Keisuke Sueki, Kejun Dong, Tsutomu Takahashi, Siyu Wei, Kimikazu Sasa, Mingji Liu, Masumi Matsumura, Zhaomei Li, Qi Meng, Xiangdong Ruan, Zhenchi Zhao, Hongtao Shen, Seiji Hosoya, Mingli Qi, Jiahao Li |
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| Rok vydání: | 2019 |
| Předmět: |
010506 paleontology
Nuclear and High Energy Physics geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Geochemistry Exposure age Karst 01 natural sciences Tectonics Southern china Eurasian continent Carbonate rock Quaternary Instrumentation Geology 0105 earth and related environmental sciences Accelerator mass spectrometry |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 459:29-35 |
| ISSN: | 0168-583X |
| Popis: | The Guangxi Zhuang Autonomous Region in southern China is one of the most typical karst relief areas with various forms, and tiankeng is one of the most typical karst relief forms of the Quaternary Period. In this work, accurate measurements of tiankeng exposure ages were made. The exposure ages of carbonate rocks from the five largest tiankengs in the world, the DaShiwei, HuangJing, ChuanDong, DaTuo, and DaCao tiankengs, were determined by accelerator mass spectrometry to be at least 20–400 thousand years, which provides significant proof for activity of new tectonic movement of the Eurasian continent in the Quaternary. |
| Databáze: | OpenAIRE |
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