Methodological study on exposure date of Tiankeng by AMS measurement of in situ produced cosmogenic 36Cl
Tiankeng is a typical Karst relief of the late Quaternary Period. Studies on the exposure ages of Tiankeng are very important in geographical research to elucidate the formation condition, the developing process, and the features of biological species. 36Cl on the surface layer of the rupture cross-...
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Veröffentlicht in: | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2013-01, Vol.294, p.611-615 |
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creator | Kejun, Dong Shizhuo, Li Ming, He Sasa, Kimikazu Matsushi, Yuki Baojian, Huang Xiangdong, Ruan Yongjing, Guan Takahashi, Tsutomu Sueki, Keisuke Chaoli, Li Shaoyong, Wu Xianggao, Wang Hongtao, Shen Nagashima, Yasuo Shan, Jiang |
description | Tiankeng is a typical Karst relief of the late Quaternary Period. Studies on the exposure ages of Tiankeng are very important in geographical research to elucidate the formation condition, the developing process, and the features of biological species. 36Cl on the surface layer of the rupture cross-section of Tiankeng is largely produced by cosmogenic high-energy neutron induced reactions 40Ca(n, αp) and 39K(n, α), and has accumulated since the formation of the Tiankeng. Low-energy neutron reaction 35Cl(n, γ) contributes a small portion of 36Cl. In this work, the concentration of the cosmogenic 36Cl in rock samples taken from Dashiwei Tiankeng, Leye County, Guangxi Zhuang Autonomous Region, China, was measured jointly by Accelerator Mass Spectrometry (AMS) laboratories of CIAE and University of Tsukuba in an effort to estimate the formation time (or exposure age) of the Tiankeng. The results show that the exposure time of Da Shiwei Tiankeng is about 26±9.6ka (without erosion correction). The sampling strategy and procedures, experimental set-up, and preliminary results will be presented in detail. |
doi_str_mv | 10.1016/j.nimb.2012.07.048 |
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Studies on the exposure ages of Tiankeng are very important in geographical research to elucidate the formation condition, the developing process, and the features of biological species. 36Cl on the surface layer of the rupture cross-section of Tiankeng is largely produced by cosmogenic high-energy neutron induced reactions 40Ca(n, αp) and 39K(n, α), and has accumulated since the formation of the Tiankeng. Low-energy neutron reaction 35Cl(n, γ) contributes a small portion of 36Cl. In this work, the concentration of the cosmogenic 36Cl in rock samples taken from Dashiwei Tiankeng, Leye County, Guangxi Zhuang Autonomous Region, China, was measured jointly by Accelerator Mass Spectrometry (AMS) laboratories of CIAE and University of Tsukuba in an effort to estimate the formation time (or exposure age) of the Tiankeng. The results show that the exposure time of Da Shiwei Tiankeng is about 26±9.6ka (without erosion correction). The sampling strategy and procedures, experimental set-up, and preliminary results will be presented in detail.</description><identifier>ISSN: 0168-583X</identifier><identifier>EISSN: 1872-9584</identifier><identifier>DOI: 10.1016/j.nimb.2012.07.048</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Age ; AMS ; Autonomous ; Chlorine-36 dating ; Erosion ; Exposure ; Exposure age ; Formations ; Low energy ; Rock ; Sampling ; Tiankeng</subject><ispartof>Nuclear instruments & methods in physics research. 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Section B, Beam interactions with materials and atoms</title><description>Tiankeng is a typical Karst relief of the late Quaternary Period. Studies on the exposure ages of Tiankeng are very important in geographical research to elucidate the formation condition, the developing process, and the features of biological species. 36Cl on the surface layer of the rupture cross-section of Tiankeng is largely produced by cosmogenic high-energy neutron induced reactions 40Ca(n, αp) and 39K(n, α), and has accumulated since the formation of the Tiankeng. Low-energy neutron reaction 35Cl(n, γ) contributes a small portion of 36Cl. In this work, the concentration of the cosmogenic 36Cl in rock samples taken from Dashiwei Tiankeng, Leye County, Guangxi Zhuang Autonomous Region, China, was measured jointly by Accelerator Mass Spectrometry (AMS) laboratories of CIAE and University of Tsukuba in an effort to estimate the formation time (or exposure age) of the Tiankeng. The results show that the exposure time of Da Shiwei Tiankeng is about 26±9.6ka (without erosion correction). The sampling strategy and procedures, experimental set-up, and preliminary results will be presented in detail.</description><subject>Age</subject><subject>AMS</subject><subject>Autonomous</subject><subject>Chlorine-36 dating</subject><subject>Erosion</subject><subject>Exposure</subject><subject>Exposure age</subject><subject>Formations</subject><subject>Low energy</subject><subject>Rock</subject><subject>Sampling</subject><subject>Tiankeng</subject><issn>0168-583X</issn><issn>1872-9584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9UD1PwzAQtRBIlMIfYPLIkmDHSexILFXFl1TEQJHYLMe-tC6JXeIE0X-PozJzw93w3ru79xC6piSlhJa3u9TZrk4zQrOU8JTk4gTNqOBZUhUiP0WzSBJJIdjHOboIYUdiFayYoe0LDFtvfOs3VqsWh2E0B-wdhp-9D2MP2KgBsG_w2ir3CW6D6wNevLzhDtSEd-CGCbYOBzuMeN97M2owWPvQ-Q04qzErl-0lOmtUG-Dqb87R-8P9evmUrF4fn5eLVaKzPBcJVcSokhWU8FronEBDCaMlyXLVlJxnpGZVI0w0qIs8dsobwQQXUJiC0Kphc3Rz3Bsf-RohDLKzQUPbKgd-DJLyimWiokxEanak6t6H0EMj973tVH-QlMgpVrmTU6xyilUSLuO9KLo7iiCa-LbQy6AtuOjY9qAHabz9T_4LdDWAEg</recordid><startdate>201301</startdate><enddate>201301</enddate><creator>Kejun, Dong</creator><creator>Shizhuo, Li</creator><creator>Ming, He</creator><creator>Sasa, Kimikazu</creator><creator>Matsushi, Yuki</creator><creator>Baojian, Huang</creator><creator>Xiangdong, Ruan</creator><creator>Yongjing, Guan</creator><creator>Takahashi, Tsutomu</creator><creator>Sueki, Keisuke</creator><creator>Chaoli, Li</creator><creator>Shaoyong, Wu</creator><creator>Xianggao, Wang</creator><creator>Hongtao, Shen</creator><creator>Nagashima, Yasuo</creator><creator>Shan, Jiang</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>201301</creationdate><title>Methodological study on exposure date of Tiankeng by AMS measurement of in situ produced cosmogenic 36Cl</title><author>Kejun, Dong ; Shizhuo, Li ; Ming, He ; Sasa, Kimikazu ; Matsushi, Yuki ; Baojian, Huang ; Xiangdong, Ruan ; Yongjing, Guan ; Takahashi, Tsutomu ; Sueki, Keisuke ; Chaoli, Li ; Shaoyong, Wu ; Xianggao, Wang ; Hongtao, Shen ; Nagashima, Yasuo ; Shan, Jiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2448-1a0da635107b8c40ef10316024af67720b39f8d048c5404817f83878e5d5019f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Age</topic><topic>AMS</topic><topic>Autonomous</topic><topic>Chlorine-36 dating</topic><topic>Erosion</topic><topic>Exposure</topic><topic>Exposure age</topic><topic>Formations</topic><topic>Low energy</topic><topic>Rock</topic><topic>Sampling</topic><topic>Tiankeng</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kejun, Dong</creatorcontrib><creatorcontrib>Shizhuo, Li</creatorcontrib><creatorcontrib>Ming, He</creatorcontrib><creatorcontrib>Sasa, Kimikazu</creatorcontrib><creatorcontrib>Matsushi, Yuki</creatorcontrib><creatorcontrib>Baojian, Huang</creatorcontrib><creatorcontrib>Xiangdong, Ruan</creatorcontrib><creatorcontrib>Yongjing, Guan</creatorcontrib><creatorcontrib>Takahashi, Tsutomu</creatorcontrib><creatorcontrib>Sueki, Keisuke</creatorcontrib><creatorcontrib>Chaoli, Li</creatorcontrib><creatorcontrib>Shaoyong, Wu</creatorcontrib><creatorcontrib>Xianggao, Wang</creatorcontrib><creatorcontrib>Hongtao, Shen</creatorcontrib><creatorcontrib>Nagashima, Yasuo</creatorcontrib><creatorcontrib>Shan, Jiang</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kejun, Dong</au><au>Shizhuo, Li</au><au>Ming, He</au><au>Sasa, Kimikazu</au><au>Matsushi, Yuki</au><au>Baojian, Huang</au><au>Xiangdong, Ruan</au><au>Yongjing, Guan</au><au>Takahashi, Tsutomu</au><au>Sueki, Keisuke</au><au>Chaoli, Li</au><au>Shaoyong, Wu</au><au>Xianggao, Wang</au><au>Hongtao, Shen</au><au>Nagashima, Yasuo</au><au>Shan, Jiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Methodological study on exposure date of Tiankeng by AMS measurement of in situ produced cosmogenic 36Cl</atitle><jtitle>Nuclear instruments & methods in physics research. 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In this work, the concentration of the cosmogenic 36Cl in rock samples taken from Dashiwei Tiankeng, Leye County, Guangxi Zhuang Autonomous Region, China, was measured jointly by Accelerator Mass Spectrometry (AMS) laboratories of CIAE and University of Tsukuba in an effort to estimate the formation time (or exposure age) of the Tiankeng. The results show that the exposure time of Da Shiwei Tiankeng is about 26±9.6ka (without erosion correction). The sampling strategy and procedures, experimental set-up, and preliminary results will be presented in detail.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.nimb.2012.07.048</doi><tpages>5</tpages></addata></record> |
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subjects | Age AMS Autonomous Chlorine-36 dating Erosion Exposure Exposure age Formations Low energy Rock Sampling Tiankeng |
title | Methodological study on exposure date of Tiankeng by AMS measurement of in situ produced cosmogenic 36Cl |
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