青海赛坝沟金矿床深部矿体地质特征及找矿远景分析

摘要

Saibagou gold deposit locates in Ⅱmetallogenic belt in rift in the northern margin of Qaidam basin. The ore bodies mainly distributed in ductile-brittle fracture structures with the trend of NW and NWW formed by Cale⁃donian-Indosinian intracontinental orogeny. The property of ore bearing lithology is pyrite quartz vein, pyritization quartz schist, pyrite sericite quartzite ultramylonite and pyritized mylonite. The amount of gold metal in Saibagou gold deposit is 2.35t. It is a small deposit. There is still great ore prospecting potential in the deep part of this de⁃posit.%赛坝沟金矿床位于柴北缘大陆边缘裂谷Ⅱ级成矿带内，矿体分布于加里东期—印支期陆内造山形成的以NW，NWW向的为主的韧—脆性断裂构造组中。赋矿岩性为黄铁矿化石英脉、黄铁矿化云英片岩、黄铁绢英岩、黄铁绢英岩质超糜棱岩、黄铁矿化糜棱岩等。赛坝沟金矿床此次探求金金属量为2．35 t，为小型矿床，其深部及外围尚有很大的找矿前景。