冰碛垄表面碎屑物质宇生核素暴露测年可行性研究
作者:
  • 张志刚

    张志刚

    1)南京师范大学地理科学学院,南京,210023;2)虚拟地理环境教育部重点实验室(南京师范大学),南京,210023;3)江苏省地理环境演化国家重点实验室培育建设点,南京,210023;4)江苏省地理信息资源开发与利用协同创新中心,南京,210023;5)中国科学院西北生态环境资源研究院冰冻圈国家重点实验室,兰州,730000
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  • 王建

    王建

    1)南京师范大学地理科学学院,南京,210023;2)虚拟地理环境教育部重点实验室(南京师范大学),南京,210023;3)江苏省地理环境演化国家重点实验室培育建设点,南京,210023;4)江苏省地理信息资源开发与利用协同创新中心,南京,210023
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  • 张梦媛

    张梦媛

    1)南京师范大学地理科学学院,南京,210023;2)虚拟地理环境教育部重点实验室(南京师范大学),南京,210023;3)江苏省地理环境演化国家重点实验室培育建设点,南京,210023;4)江苏省地理信息资源开发与利用协同创新中心,南京,210023
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  • 梅静

    梅静

    1)南京师范大学地理科学学院,南京,210023;2)虚拟地理环境教育部重点实验室(南京师范大学),南京,210023;3)江苏省地理环境演化国家重点实验室培育建设点,南京,210023;4)江苏省地理信息资源开发与利用协同创新中心,南京,210023
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基金项目:

本文为国家自然科学基金资助项目(编号:41503054);中国博士后科学基金面上资助项目(编号:2015M582728)和江苏省高校优势学科建设工程资助项目(编号:164320H116)的成果。


The Study of Cosmogenic Nuclides Exposure Dating for the Debris Material on the Moraine Surface
Author:
  • ZHANG Zhigang

    ZHANG Zhigang

    1)School of Geographical Sciences, Nanjing Normal University, Nanjing, 210023;2) Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023;3) State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023;4) Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023;5) State Key Laboratory of Cryospheric Sciences, Northwest Institute of EcoEnvironment and Resources, Chinese Academy of Sciences, Lanzhou, 730000
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  • WANG Jian

    WANG Jian

    1)School of Geographical Sciences, Nanjing Normal University, Nanjing, 210023;2) Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023;3) State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023;4) Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023
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  • ZHANG Mengyuan

    ZHANG Mengyuan

    1)School of Geographical Sciences, Nanjing Normal University, Nanjing, 210023;2) Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023;3) State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023;4) Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023
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  • MEI Jing

    MEI Jing

    1)School of Geographical Sciences, Nanjing Normal University, Nanjing, 210023;2) Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023;3) State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023;4) Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023
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单位:
  • 1)南京师范大学地理科学学院,南京,210023;2)虚拟地理环境教育部重点实验室(南京师范大学),南京,210023;3)江苏省地理环境演化国家重点实验室培育建设点,南京,210023;4)江苏省地理信息资源开发与利用协同创新中心,南京,210023;5)中国科学院西北生态环境资源研究院冰冻圈国家重点实验室,兰州,730000    
  • 1)南京师范大学地理科学学院,南京,210023;2)虚拟地理环境教育部重点实验室(南京师范大学),南京,210023;3)江苏省地理环境演化国家重点实验室培育建设点,南京,210023;4)江苏省地理信息资源开发与利用协同创新中心,南京,210023    
  • 1)南京师范大学地理科学学院,南京,210023;2)虚拟地理环境教育部重点实验室(南京师范大学),南京,210023;3)江苏省地理环境演化国家重点实验室培育建设点,南京,210023;4)江苏省地理信息资源开发与利用协同创新中心,南京,210023    
  • 1)南京师范大学地理科学学院,南京,210023;2)虚拟地理环境教育部重点实验室(南京师范大学),南京,210023;3)江苏省地理环境演化国家重点实验室培育建设点,南京,210023;4)江苏省地理信息资源开发与利用协同创新中心,南京,210023    
  • 1)School of Geographical Sciences, Nanjing Normal University, Nanjing, 210023;2) Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023;3) State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023;4) Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023;5) State Key Laboratory of Cryospheric Sciences, Northwest Institute of EcoEnvironment and Resources, Chinese Academy of Sciences, Lanzhou, 730000    
  • 1)School of Geographical Sciences, Nanjing Normal University, Nanjing, 210023;2) Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023;3) State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023;4) Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023    
  • 1)School of Geographical Sciences, Nanjing Normal University, Nanjing, 210023;2) Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023;3) State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023;4) Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023    
  • 1)School of Geographical Sciences, Nanjing Normal University, Nanjing, 210023;2) Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023;3) State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023;4) Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023    
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    摘要:

    原地生宇宙成因核素(宇生核素)10Be和26Al暴露测年技术已广泛应用于各种地貌年代测定,尤其是在冰川地貌年代测定中备受青睐。多数学者通常选择冰碛垄表面散布的冰川漂砾作为测年对象。然而,冰川漂砾在暴露测年研究中存在暴露后期翻转、不等时暴露等问题,不仅影响冰川地貌测年的精度,而且难以获得较老的冰川地貌年代。冰碛垄表面碎屑物质,一直附着于冰碛垄“表面”,可以规避冰川漂砾测年存在的不等时暴露问题,而且可以减少测试样本量、降低测试费用。因此,本文尝试探讨利用冰碛垄表面碎屑物质进行暴露测年研究的可行性,可望为较老冰川地貌暴露测年研究提供新的思路。

    Abstract:

    The method of insitu Cosmogenic Nuclides 10Be and 26Al exposure dating has been widely used in dating of various landforms, especially in glacier dating. Most scholars usually choose glacier boulder which spread on the moraine surface as dating object. However, glacial boulders are existing exposed to late flip and unequal exposure problems in the exposure dating, and it not only affects the accuracy of glacial geomorphic dating, but also makes it difficult to obtain the older glacial geomorphic age. Moraine surface debris has been adhering to the "surface" of moraines which can avoid unequal exposure problem in glacial boulder dating, what’s more, it can reduce the amount of test samples and the cost of testing. Therefore, this paper attempts to explore the feasibility of using the fragmentary materials of moraine ridge for exposure dating studies, which may provide new ideas for the study of exposure dating of older glacial landforms.

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引用本文

张志刚,王建,张梦媛,梅静.2017.冰碛垄表面碎屑物质宇生核素暴露测年可行性研究[J].地质论评,63(6):1576-1584,[DOI].
ZHANG Zhigang, WANG Jian, ZHANG Mengyuan, MEI Jing.2017. The Study of Cosmogenic Nuclides Exposure Dating for the Debris Material on the Moraine Surface[J]. Geological Review,63(6):1576-1584.

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历史
  • 收稿日期:2016-07-22
  • 最后修改日期:2017-10-11
  • 在线发布日期: 2017-11-21