综合地球物理探测在深部空间结构中的应用——以胶东金矿集区为例  

Application of integrated geophysical exploration in deep spatial structures:A case study of Jiaodong gold ore concentration area

作　　者：陈大磊 王润生 贺春艳 王珣 尹召凯 于嘉宾 CHEN Da-Lei;WANG Run-Sheng;HE Chun-Yan;WANG Xun;YIN Zhao-Kai;YU Jia-Bin(Shandong Institute of Geophysical&Geochemical Exploration Institute,Jinan 250013,China;Shandong Geological Exploration Engineering Technology Research Center,Jinan 250013,China;No.6 Institute of Geology and Mineral Resources Exploration of Shandong Province,Zhaoyuan 265400,China)

机构地区：[1]山东省物化探勘查院,山东济南250013 [2]山东省地质勘查工程技术研究中心,山东济南250013 [3]山东省第六地质矿产勘查院,山东招远265400

出　　处：《物探与化探》2022年第1期70-77,共8页Geophysical and Geochemical Exploration

基　　金：国家自然科学基金联合基金项目“胶东深部金矿断裂控矿机理”(U2006201);2021年度局控地质勘查与科技创新项目“胶东深部金矿断裂综合地球物理研究”(KY202112);山东省重大科技创新工程项目“深部探测综合地球物理技术”(2018CXGC1601);山东省地质矿产勘查开发局2018年度矿产勘查项目(KC2018009)。

摘　　要：胶东地区作为我国主要的黄金产区,“攻深找盲”成为该区深部找矿重点研究方向。在“深部金矿资源评价理论、方法与预测”的工作基础之上,通过对莱州市金城镇—海阳市二十里店镇一带金矿集区开展高精度重力、高精度磁法、大地电磁测深综合物探剖面测量,综合前期已有成果对获取的重、磁、电资料进行综合研究分析,对区内太古宙至中生代侵入岩、前寒武纪变质基底、胶莱盆地地层的深部空间分布特征、相互关系及主要控矿构造的深部形态及特征进行了归纳总结,为后期深部金矿的找矿预测以及相关研究工作提供目标和依据。Jiaodong area is one of the major gold producing areas in China,and the deep prospecting in this area is to seek deep breakthroughs and blind spots at present.With the gold concentration area in Jincheng Town in Laizhou City and Ershilidian Town in Haiyang City as an example and based on the prediction and assessment theory and method of deep gold resources,this study summarizes the deep spatial characteristics and relationships of the Archaeozoic-Mesozoic intrusive rocks,Precambrian metamorphic basement,and the strata in Jiaolai Basin in the area and the deep morphology and characteristics of major ore-controlling structures in the area.To this end,section measurement was carried out using the integrated geophysical exploration of high-precision gravity survey,high-precision magnetic survey,and magnetotelluric sounding.Meanwhile,the obtained gravity,magnetic,and resistivity data were comprehensively researched and analyzed in combination with previous results.This study will provide a basis for the late prospecting prediction of deep gold deposits and related researches of the area.

关 键 词：重、磁勘探 大地电磁测深 中生代侵入岩 前寒武纪变质基底 胶莱盆地 

分 类 号：P631[天文地球—地质矿产勘探]