北秦岭花园坝金矿地质特征及找矿远景分析

Analysis on geological characteristics and prospecting potential of Huayuanba Gold Deposit in North Qinling

勘查区位于秦祁昆造山系秦岭弧盆系内,属西秦岭铅⁃锌⁃铜(铁)⁃金⁃汞⁃锑成矿带。矿区受元家坪脆韧性剪切带控制,同时受印支期—燕山期大面积的中酸性侵入活动影响,成矿条件较好。矿区内赋矿岩体主要为烟灰色黄铁矿、黄铜矿矿化石英脉,圈定金铜矿体1条、金矿体4条。本文总结了矿床成因、找矿规律等,分析矿区找矿远景,为下一步找矿提供依据。

The exploration area is located in the Qinling arc basin system of the Qin⁃Qi⁃Kun orogenic system,belonging to the west Qinling Lead⁃Zinc⁃Copper(Iron)⁃gold⁃mercury⁃antimony metallogenic belt.The mining area is controlled by the Yuanjiaping brittle ductile shear zone and influenced by the indosinian to Yanshanian large⁃scale intermediate⁃acid intrusion,showing good ore⁃forming conditions.The ore⁃hosting rock mass in the mining area is mainly smoky gray pyrite and chalcopyrite fossil quartz veins,and 1 gold⁃copper ore body and 4 gold orebodies were delineated.This paper analyzed the prospecting potential of the mining area by summarizing the deposit genesis and prospecting regularity,and provided reliable basis for further prospecting.