Exposure age dating of Chinese tiankengs by 36Cl-AMS

Hongtao Shen, Kimikazu Sasa, Qi Meng, Masumi Matsumura, Tetsuya Matsunaka, Seiji Hosoya, Tsutomu Takahashi, Maki Honda, Keisuke Sueki, Ming He, Baojian Huang, Huijin Lu, Lisha Chen, Yongfu Qin, Jiahao Li, Haihui Lan, Zhaomei Li, Zhenchi Zhao, Mingji Liu, Siyu WeiMingli Qi, Qingzhang Zhao, Kejun Dong, Yongjin Guan, Xiangdong Ruan, Shan Jiang

Research output: Contribution to journalArticlepeer-review

Abstract

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.
Original languageEnglish
Pages (from-to)29-35
Number of pages7
JournalNuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
Volume459
DOIs
Publication statusPublished - 2019

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