摘要
重力勘查是测量与围岩有密度差异的地质体在其周围引起的重力异常,以确定这些地质体存在的空间位置、大小和形状,进而对工作地区的地质构造和矿产分布情况做出判断的一种地球物理勘探方法。文章通过对江西彭山夏家铺地区1∶50000重力调查资料进行处理分析,并结合AMT、磁法等物探工作,对彭山地区重点区域的重力异常进行划分,并做出定性解释,从而进一步研究彭山地区的构造格架。研究发现,在该地区有多处可供钻探工作验证的找矿有利区,表明在该地区开展重磁电等物探工作对矿产勘查具有重要的指导意义。
Gravity exploration is a geophysical exploration method to measure the gravity anomalies caused by geological bodies with differences in density from the surrounding rock,so as to determine the spatial locations,sizes and shapes of these geological bodies,and then judge the distribution of geological structures and mineral resources in the working area.Based on the analysis of 1:50000 gravity survey data for Xiajiapu,Pengshan,Jiangxi,combined with geophysical methods such as AMT and magnetic method,this paper divides gravity anomalies in key parts of the Pengshan area and gives qualitative interpretation,so as to further study the tectonic framework of the Pengshan area.According to the work results,there are several favorable prospecting areas available for drilling verification in the area,indicating that the gravity,magnetic and electrical methods play a guiding role in mineral exploration in the area.
作者
张小龙
汪启年
李涛
周月
官大维
朱将波
阮永刚
ZHANG Xiaolong;WANG Qinian;LI Tao;ZHOU Yue;GUAN Dawei;ZHU Jiangbo;RUAN Yonggang(Institute of Exploration Technology of Anhui Province,Hefei,Anhui 230031,China)
出处
《安徽地质》
2023年第1期20-26,共7页
Geology of Anhui
基金
中国地质调查局南京地质调查中心项目“长江中下游成矿带安庆-盱眙地区地质矿产调查”(编号:南地〔2016〕01-8)资助。
关键词
彭山地区
地质特征
重力异常
定性解释
Pengshan area
geological characteristics
gravity anomaly
qualitative interpretation
