Journal of Guangxi Normal University(Natural Science Edition) ›› 2017, Vol. 35 ›› Issue (1): 16-20.doi: 10.16088/j.issn.1001-6600.2017.01.003

Previous Articles     Next Articles

Determination of Exposure Age of Tiankeng, Leye County of Guangxi by Accelerator Mass Spectrometry

MENG Qi1,SHEN Hongtao1,MAO Liqiang1,LIANG Weigang1,ZHAO Zizhen1,LIANG Zhaoyan1, LAI Mingfeng1,HUANG Baojian2,LI Shizhuo3,HE Ming3,JIANG Shan3   

  1. 1. College of Physics and Technology,Guangxi Normal University,Guilin Guangxi 541004, China;
    2. Institute of Karst Geology,Chinese Academy of Geological Sciences,Guilin Guangxi 541004,China;
    3. China Institute of Atomic Energy,P.O. Box 27550) ,Beijing 102413, China
  • Online:2017-01-20 Published:2018-07-17

PDF (PC)

156

Abstract: Accelerate mass spectrometry is a nuclide analysis technique with high sensitivity. In this paper, accelerator mass spectrometry is used to measure the content of radionuclide 36Cl in the rocks to study the exposure age of Dashiwei Tiankeng,Leye County of Guangxi, and realize the dating of Dashiwei Tiankeng in Guangxi. The results show that the exposure age of Dashiwei Tiankeng is at least 100-200 thousands years. The study intends to provide a significant reference value for the study of karst relief areas and its evolution.

Key words: Tiankeng, 36Cl, exposure age, erosion rate, AMS

CLC Number: 

  • O571.1
［1］BENTLEY H W, PHILLIPS F M, DAVIS S N, et al. 36 Cl in the terrestrial environment［J］. Handbook of Environmental Isotope Geochemistry, 1986,2(1):427-475.
［2］HOUMARK N M, LINGE H, FABEL D, et al. Cosmogenic surface exposure dating the last deglaciation in Denmark: Discrepancies with independent age constraints suggest delayed periglacial landform stabilisation［J］. Quaternary Geochronology, 2012, 13(6):1-17.
［3］MATSUSHI Y, SASA K, TAKAHASHI T, et al. Denudation rates of carbonate pinnacles in Japanese karst areas: estimates from cosmogenic 36Cl in calcite［J］. Nuclear Instruments & Methods in Physics Research, 2010, 268(7/8):1205-1208.
［4］ZERATHE S, LEBOURG T, BRAUCHER R, et al. Mid-Holocene cluster of large-scale landslides revealed in the Southwestern Alps by 36Cl dating. Insight on an Alpine-scale landslide activity［J］. Quaternary Science Reviews, 2014, 90(1):106-127.
［5］晁念英, 潘欢迎, 刘存富,等. 北京石花洞地区奥陶纪灰岩 36Cl侵蚀速率初探［J］. 地球学报, 2005, 26(s1):272-274.
［6］武绍勇, 汪越, 仇九子,等. 加速器质谱法测定北京地区灰岩的侵蚀速率［J］. 质谱学报, 2005, 26(s1):77-78.
［7］CIZDZIEL J V, WEI Y, STETZENBACH K J, et al. Recent measurements of 36Cl in Yucca Mountain rock, soil and seepage［J］. Journal of Radioanalytical and Nuclear Chemistry, 2008, 275(1):133-144.
［8］SCHLAGENHAUF A, MANIGHETTI I, BENEDETTI L, et al. Earthquake supercycles in Central Italy, inferred from 36Cl exposure dating［J］. Earth & Planetary Science Letters, 2011, 307(3/4):487-500.
［9］SCHIMMELPFENNIG I, BENEDETTI L, GARRETA V, et al. Calibration of cosmogenic 36Cl production rates from Ca and K spallation in lava flows from Mt. Etna (38°N, Italy) and Payun Matru (36°S, Argentina)［J］. Geochimica Et Cosmochimica Acta, 2011, 75(10):2611-2632.
［10］朱学稳, 陈伟海. 中国的喀斯特天坑［J］. 中国岩溶, 2006, 25(8):7-24.
［11］TONY W, 朱学稳. 2005年中国天坑考察报告［J］. 中国岩溶, 2006, 25(8):1-6.
［12］MERCHEL S, BENEDETTI L, BOURLS D L, et al. A multi-radionuclide approach for in situ produced terrestrial cosmogenic nuclides: 10 Be, 26 Al, 36Cl and 41 Ca from carbonate rocks［J］. Nuclear Instruments & Methods in Physics Research, 2010, 268(7):1179-1184.
［13］HETZEL R. Active faulting, mountain growth, and erosion at the margins of the Tibetan Plateau constrained by in situ-produced cosmogenic nuclides［J］. Tectonophysics, 2013, 582(1):1-24.
［14］VOCKENHUBER C, GOLSER R, KUTSCHERA W, et al. Accelerator mass spectrometry of the heaviest long-lived radionuclides with a 3-MV tandem accelerator［J］. Pramana, 2002, 59(6):1041-1051.
［15］李世琢. 利用宇生 36Cl测定天坑暴露年龄的方法研究［D］. 南宁：广西大学, 2010.
[1] LUO Yixing, TANG Qiming, XUE Yuegui. Study on Diversity Charateristics of Bryophytes in Chuandong Tiankeng, Guangxi [J]. Journal of Guangxi Normal University(Natural Science Edition), 2020, 38(5): 104-111.
[2] LI Zhaomei, LI Wenlin, MENG Anxin, ZHAO Zhenchi, QIN Yongfu, LAN Haihui, LU Huijin, CHEN Lisha, LIANG Weigang, SHEN Hongtao. Study of 14C-AMS in Dating of the Ancient Painting [J]. Journal of Guangxi Normal University(Natural Science Edition), 2019, 37(2): 38-43.
[3] HUANG Yanping, WEI Yuming. Multiple Solutions of Multiple-points Boundary Value Problem for a Class of Fractional Differential Equation [J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 41-49.
[4] TANG Qiming , XUE Yuegui , DANG Guilan , MO Foyan. Bryophytes Species New to Guangxi,China [J]. Journal of Guangxi Normal University(Natural Science Edition), 2016, 34(2): 143-146.
[5] WANG Xiao-chao, CAI De-suo, ZHU Tie-gang, ZHANGYong-xiang, LIN Hong-jun, WU Da-yong. Ecological Effects of Small Dams on Steam Ecosystems in Lijiang River Basin [J]. Journal of Guangxi Normal University(Natural Science Edition), 2012, 30(4): 179-183.
[6] MENG Fan-hui, WANG Hao, FANG Bao-fu, PENG Wei. Research and Implementation of Human Detection Based on ExtendedHistograms of Oriented Gradients [J]. Journal of Guangxi Normal University(Natural Science Edition), 2011, 29(3): 168-172.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Guangxi Normal University(Natural Science Edition), All Rights Reserved.
Tel: 0773-5857325　E-mail: gxsdzkb@mailbox.gxnu.edu.cn
Powered by Beijing Magtech Co. Ltd