徐宿弧(安徽段)深部重磁异常及其认识  

GRAVITY AND MAGNETIC ANOMALIES OF THE DEEP PART OF THE XU-SU ARC(ANHUI SECTION)AND THE UNDERSTANDING OF THEM

作　　者：王金鑫 何柳昌 产思维 WANG Jin-xin;HE Liu-chang;CHAN Si-wei(Institute of Exploration Technology of Anhui Province,Hefei,Anhui 230031,China)

机构地区：[1]安徽省勘查技术院,安徽合肥230031

出　　处：《安徽地质》2021年第1期40-43,共4页Geology of Anhui

基　　金：安徽省公益性地质调查项目“徐宿弧(安徽段)金多金属矿成矿背景调查”(2016-g-3-34)资助。

摘　　要：为调查徐宿弧(安徽段)隐伏基底构造及深部隐伏岩体的分布,对深部重磁异常进行了分析判断。通过对收集、实测的重磁资料进行整理、筛选,采用化极、向上延拓、小波变换及水平一阶方向导数等进行数据处理;根据深部重磁异常特征结合区内的岩矿石物性特征及成矿地质背景分析,推测了铁佛寺-濉溪县-庄里的北东-北北东向隐伏基底构造及旗杆楼-萧县的东西向隐伏基底构造;新圈定了庄里深部隐伏复式岩体及淮北深部隐伏岩体,为徐宿弧(安徽段)地区进行矿产预测,提取示矿信息提供依据。In order to investigate the distribution of concealed basement structure and deep concealed rock mass in the Xu-Su arc(Anhui section),the deep gravity and magnetic anomalies were analyzed and judged.After the collected and measured gravity and magnetic data are sorted and screened,they were processed by means of reduction-to-the-pole,upward continuation,wavelet transform and horizontal first order derivative.As a result,the buried NE to NNE Tiefosi-Suixi County-Zhuangli basement structure and the concealed EW Qiganlou-Xiaoxian County basement structure come to the surface according to the characteristics of deep gravity and magnetic anomalies.The latest work result is the delineation of the deep concealed complex rock mass in Zhuangli and the deep concealed complex rock mass in Huaibei,which provides the basis for mineral resources prognosis and extraction of ore indication information in the Xu-Su arc area(Anhui section).

关 键 词：隐伏基底构造及深部隐伏岩体 深部重磁电异常 多方法变参数数据处理 

分 类 号：P631[天文地球—地质矿产勘探]