新疆若羌县日吉普顶含金石英斑岩体特征及其找矿意义探讨

Rock mass features and its prospecting significance of Rijipuding goldbearing quartz porphyries in Ruoqiang County, Xinjiang

新疆若羌县黑山地区砂金矿分布多且范围大,但砂金矿分布区内岩金找矿一直没有重大突破。2009年,吉林省地质调查院在黑山地区日吉普顶一带发现了具全岩含金的石英斑岩体。通过地表槽探初步揭露和单孔验证,该岩体均有含金显示,最高含金1.38×10^(-6)。笔者认为该含金石英斑岩体可能为附近砂金源之一。对该含金石英斑岩体特征的探讨及进一步评价将有利于该区岩金找矿突破。

The placer gold deposits are more and their scales are larger in the Heishan area of Ruoqiang County, Xinjiang, but did not make major prospecting breakthrough in the placer gold deposit distribution area. In 2009, the survey geological institute of Jilin Province found the all gold-bearing quartz porphyries in the Rijipuding region of Heishan area. There are gold-bearing display all over the rock bodies tested by surface trench exploration and single drilling hole, the highest Au value is 1.38×10-6. Authors think that the gold-bearing quartz porphyries may be one of the sources of nearby placer deposits. Discussion on the characteristics of the rock bodies and further prospecting evaluation will be favorable to prospecting achievement in the area.