“演绎-迭代”勘查方法在大比例尺成矿预测中的应用——以河南石寨沟金矿找矿为例  

Application of the‘Deduction-Iteration’Exploration Method to Large-Scale Metallogenic Prediction:An example from the Shizhaigou Gold Ore District in Henan Province

作　　者：崔敏利[1,2] 张宝林[1] 张连昌[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 [2]中国地质调查局发展研究中心,北京100037

出　　处：《地质与勘探》2012年第6期1163-1171,共9页Geology and Exploration

基　　金：国家"十一五"科技支撑计划重大项目(编号2006BAB01A02);国家基础研究发展计划(编号2006CB403507)资助

摘　　要："演绎-迭代"勘查方法包括"归纳-演绎-反演-验证-迭代"五个步骤,是成矿预测理论与大比例尺内成矿预测实践相结合的有效接口。"归纳"是对比研究已知典型矿床的特点,分析区域控矿构造,总结区域成矿规律;"演绎"是结合矿区内自身成矿控矿特点建立矿床勘查模型;"反演"是应用地质、地球物理、地球化学手段对成矿空间进行定位和对成矿特征认识的再深化;"验证"是将勘查工作向实物成果的转化;"迭代"是建立勘查工作的循环,随着循环的不断推进,会越来越逼近真实的矿床形成演化机制,不断扩大控制矿体赋存空间。以河南石寨沟金矿为例,在"成矿系列"和"变质核杂岩"区域构造控矿模型指导下,应用"迭代-演绎"勘查方法,综合应用伽玛能谱、高精度磁法、高密度电法等勘查手段,结合地质资料进行综合解译,预测有利找矿区域,并得到了钻探工程的有效验证。The＇ deduction - iteration＇ exploration method involves five steps of induction, deduction, inversion,verifieation and iteration. It can effectively combine the metallogenic prediction theory with large scale metallogenic prediction. ＇ Induction＇ means comparative studies of the typical deposits, analysis of regional ore - controlling structures and summarizing regional ore - forming regularity. ＇ Deduction＇ builds a metallogenic model based on its own ore - forming and ore - controlling characteristics in a mining area. ＇ Inversion＇ can effectively locate the positions of ore bodies and deepen the recognition of the ore - forming features by the methods of geology, geophysics and geochemistry. ＇ Verification＇ converts the prospecting work into physical achievements. ＇ Iteration＇ builds a circle of the prospecting work, and it will approach the real ore - forming evolution mechanism, and expand the space of ore bodies with constantly promoting of the circle. Taking the Shizhaigou gold mine as an example, guided by the theory of＇ metallogenie series＇ and the regional ore - controlling structure model of＇ metamorphic core complexes＇ ,the comprehensive geophysical prospecting methods including gamma - ray survey ,magnetic survey and the high - density resistivity method were used in the prospecting work. The promising mineralizing region was predicted by the geophysical anomalies interpreted with the geological information and verified by drilling.

关 键 词：[关键词]成矿预测 勘查方法 地球物理 地球化学 大比例尺 石寨沟 

分 类 号：P618[天文地球—矿床学]