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本区含钨石英脉型矿床,均赋存在燕山期花岗岩内外接触带中,尤其在岩体凸出部位矿化比较富集.因此,研究该类岩体侵入时对围岩所发生的接触变质作用,总结其特征,进而推测花岗岩体空间位置和形态,结合其它控矿条件,对预测和寻找盲矿,是有重要意义的.一、对寒武系地层岩性的认识区内主要地层时代属于“中-上寒武统八村群”.岩层走向NE,倾向NW或SE,倾角一般较陡,褶皱剧烈,断裂发育.岩性系海相碎屑沉积,由一套砂砾岩、砾石质砂岩、长石石英砂岩、石英砂岩、砂质页岩、
The tungsten-bearing quartz veins in this area are both in the inner and outer contact zones of the Yanshanian granite, especially in the protruding parts of the rock mass. Therefore, the contact metamorphism of the surrounding rock during the intrusion of this kind of rock mass is studied And summarize their characteristics, and then infer the granite body space location and morphology, combined with other ore-controlling conditions, is of great significance for the prediction and search of blind mines.First, the understanding of the lithology of Cambrian strata in the main stratigraphic era Belongs to the “middle-upper Cambrian eight village group.” The strata turn toward NE with a tendency of NW or SE, generally steep dip, intense folds and fault rupture.The lithology is marine clastic sediments composed of a series of glutenite, Gravel sandstone, feldspar quartz sandstone, quartz sandstone, sandy shale,