隐伏矿体定位预测的地球物理-地质找矿模型：以地质与EH4双源大地电磁测深技术结合为例  

Geophysical-geological prospecting models for positioning prognosis of hidden metal deposits

作　　者：申萍[1] 沈远超[1] 刘铁兵[1] 

机构地区：[1]中国科学院地质与地球物理研究所,中国科学院矿产资源研究重点实验室,北京100029

出　　处：《地学前缘》2011年第3期284-292,共9页Earth Science Frontiers

基　　金：中国科学院创新工程项目(KZCX2-YW-107);国家自然科学基金项目(40972064);国家科技支撑项目(2011BAB06B01)

摘　　要：矿床地球物理-地质模型是建立在成矿模式和地球物理模型基础上,以地质研究为基础,将矿床地质特征与地球物理异常特征高度概括拟合,从中抽象出赋矿部位的空间占位规律及其几何形态,并进行可视化表达的一种找矿模型。采用地质与EH4双源大地电磁测深技术相结合的研究方法,对全国38个金属矿床进行了隐伏矿体定位预测,概括出12种成矿模式和8种地球物理模型,在此基础上尝试建立了隐伏矿体定位预测的8种地球物理-地质找矿模型,努力使成矿预测从定性的概念预测转变为定量的定位预测。The paper introduces a kind of new idea and method： ＂geophysical-geological models of ore deposits＂ which is based on the geologic prospecting experience of thirty eight different kinds of metal deposits.Geophysical-geological model of ore deposit is a visible prospecting model.As a combined concept of geological models and geophysical models of ore deposits,the model summarizes the ore-control structures and the geophysical anomalies from which the spatial allocation pattern of ore bodies is abstracted.Thirty eight different kinds of metal deposits have been carried out the positioning prognosis of concealed ore deposits more effectively by integrated geological and EH4 Hybrid-Source Magnetotelluric geophysical investigations.Based on the twelve types of geological models and eight types of geophysical models of ore deposits,eight types of geophysical-geological models of ore deposits have been established in order to change positioning prognosis of hidden deposits from qualitative conceptual prognosis to quantitative positioning prognosis.

关 键 词：矿床地球物理-地质找矿模型 EH4双源大地电磁测深 隐伏矿体 定位预测 

分 类 号：P631.3[天文地球—地质矿产勘探]