新疆和田县河岔口一带铅锌矿地质特征及找矿标志

Geological characteristics and prospecting indicators of the Lead-Zinc deposit of Hechakou in Hetian County,Xinjiang

通过归纳河岔口铅锌矿的找矿标志,为该矿床的下一步找矿工作提供依据。本文结合区域成矿背景,分析了矿区及矿体地质特征,归纳出该矿床的找矿标志。研究表明:①矿体赋存在寒武系甜水湖组变质石英砂岩中;②矿化蚀变有褐铁矿化、硅化、碳酸盐化、白云岩化等;③矿区地层、围岩蚀变、断裂构造、地球物理异常及地球化学异常为有利的找矿标志。

By summarizing the prospecting criteria of he Lead-Zinc deposit of Hechakou, and provide the basis for the next prospecting work of this deposit. Based on the regional metallogenic background, this paper analyzes the geological characteristics of the ore area and orebody, and concludes the prospecting marks of the deposit. The results show that:① the Ore bodies occur in metamorphic quartz sandstone of the Cambrian sweetwater lake formation;② the mineralization alteration include limonitization, dolomitization, silicification, carbonatation and sericitization;③ strata, wall-rock alteration, fault structure, geophysical anomaly and geochemical anomaly are favorable indicators for prospecting.