地热勘查中剩余重力场的提取与应用研究  

Study on Extraction and Application of Residual Gravity Field in Geothermal Exploration

作　　者：马振波[1,3] 张平 司法祯 杨庆华[1,3] 李志勋 蔡仲明[2,3] MA Zhenbo;ZHANG Ping;SI Fazhen;YANG Qinghua;LI Zhixun;CAI Zhongming(Henan Institute of Geological Survey;Henan Institute of Geological Sciences;Henan Urban Geological Engineering Technology Research Center,Zhengzhou 450000,China)

机构地区：[1]河南省地质调查院 [2]河南省地质科学研究所 [3]河南省城市地质工程技术研究中心,郑州450000

出　　处：《中国资源综合利用》2022年第8期76-79,共4页China Resources Comprehensive Utilization

基　　金：中国地质科学院水文地质环境地质研究所项目“厦漳泉同城化地区综合地质调查1∶5万区域重力测量”(IHEGDD2019061);“厦漳泉同城化地区综合地质调查地热靶区预测”(IHEGDD201906162)。

摘　　要：重力测量成果在地热勘查中多应用于划分区域构造、基底隆起及凹陷,圈定隐伏岩体等。本文利用布格重力异常初步查明研究区基底起伏特征及平面构造形态,通过剩余重力异常场趋势分析法获取浅部高频信号,建立局部地热异常点与剩余重力场的对应关系,为地热勘查中重力测量数据深度挖掘、地热钻探靶区圈定提供了新的应用思路。Gravity measurement results are mostly used in geothermal exploration to divide regional structures,basement uplifts and depressions,and to delineate hidden rock masses.In this paper,the Bouguer gravity anomaly is used to preliminarily identify the undulation characteristics of the basement and the plane structure in the study area,and the shallow high-frequency signal is obtained by the residual gravity anomaly field trend analysis method,and the corresponding relationship between the local geothermal anomaly and the residual gravity field is established,thus providing a new application idea for deep mining of gravity measurement data and delineation of geothermal drilling targets in geothermal exploration.

关 键 词：地热勘查 剩余重力场 趋势分析法 地热靶区 

分 类 号：P631[天文地球—地质矿产勘探]