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作 者:宋要武[1]
出 处:《前寒武纪研究进展》2002年第3期179-182,189,共5页Progress in Precambrian Research
基 金:国土资源大调查项目资助 (项目编号 :2 0 0 110 2 0 0 0 38)
摘 要:马圈一带出露的主要地层为上元古界栾川群和中元古界官道口群 ,是Pb、Zn、Ag的主要含矿地层。燕山期花岗岩在空间上与矿化关系密切。矿体主要受北西向断裂控制 ,常分布在北西、北东向断裂构造交汇部位。根据地球化学特征、矿产分布规律和找矿标志 ,划分出百炉沟西凹—东凹—磨沟、百炉沟—黄花北沟—杨树凹等两个一级和银窝沟—大石渣沟—小石渣沟、板岔沟等两个二级找矿预测区。The main strata in Majuan region are mainly the upper Protevrozoic Luanchuan Group and middle Proterozoic Guandaokou Group, which are the predominant host strata of Pb, Zn and Ag deposits. Yanshan Period granite is closely related to metallization spacially. Ore bodies are mainly controlled by northwest direction faults, freguently distributed in the junction of the northwest and northeast direction faults. According to the geochemical anormaly, the roles of the minerals distribution and prospecting the criterias, two first grade prediction regions, Bailugou Xiwa-Dongwa-Muogou and Bailgou-Huanghuabaigou-Yangshuwa, two-second grade ones, Yinwogou-Dashizhagou-xiaoshizhagou and Banchagou, are divided.
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