河源断裂隐伏段精确定位及其活动性空间不均一性  

Accurate Positioning of the Hidden Section of Heyuan Fault and Spatial Heterogeneity of Fault Activity

作　　者：王小湖 王运生[2] 王贤能 赖安锋 冯卓 詹明斌 WANG Xiaohu;WANG Yunsheng;WANG Xianneng;LAI Anfeng;FENG Zhuo;ZHAN Mingbin(Shenzhen Geokey Group Co Ltd,Shenzhen 518000,China;State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]深圳市工勘岩土集团有限公司,深圳市518000 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都市610059

出　　处：《大地测量与地球动力学》2024年第11期1119-1124,共6页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(41877235);国家创新研究群体科学基金(41521002);地质灾害防治与地质环境保护国家重点实验室自主研究课题(SKLGP2015Z001)。

摘　　要：采用断层气氡地球化学探测技术,结合物探、探槽、地质勘察、联合钻孔等资料,对河源断裂隐伏段进行综合研究。结果表明:1)土壤气氡测量揭示覆盖层下方断裂对应的地面投影位置均有明显的氡气主峰值异常;2)根据断层气氡脉冲值曲线形态确定的河源断裂倾向与联合钻孔和物探的分析结果一致,断裂产状为N30°~56°E/SE∠45°~55°;3)河源隐伏断裂的相对活动性在土壤气氡测量方法中得到显著识别,河源断裂北段(双塘-三叉水)的活动性强于河源断裂南段(陂脚村-双塘)。Using fault gas radon geochemical detection technology,combined with geophysical detection,trench exploration,geological exploration and joint drilling data,we conduct a comprehensive study on the hidden section of Heyuan fault.The results show that:1)Soil gas radon measurement reveals significant anomalies in the main peak value of radon gas at the ground projection position corresponding to the fault under cover layer.2)The tendency of Heyuan fault determined by fault gas radon pulse curve has been verified by joint drilling and geophysical exploration.The fault occurrence is N30°-56°E/SE∠45°-55°.3)The relative activity of Heyuan hidden fault is identified through soil gas radon measurement method,and the activity of northern section of Heyuan fault(Shuangtang-Sanchashui)is stronger than that of southern section(Beijiao village-Shuangtang).

关 键 词：隐伏断裂 氡气测量 精确定位 断裂活动性 重力测量 

分 类 号：P313[天文地球—固体地球物理学]