新疆昆仑山北缘一带含金硅铁建造中金矿床特征及找矿标志
Characteristics and Indicators of Gold Deposit in Gold-Bearing Silicon-Iron Formation on Northern Margin of Kunlun Mountains, Xinjiang
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摘要: 含金硅铁建造型铁金矿是近年来在新疆昆仑山地区发现的又一具有重要远景意义的矿床类型,经过地学工作者们艰苦努力,已经相继发现帕西木、苦阿-恰克能萨依、麻特等多处矿床(点).矿床产于石炭系阿羌岩组(C1a),含矿岩系为一套海底喷发-喷流沉积形成的海相火山喷发-正常碎屑沉积夹含金硅铁建造,区域上具有明显的层控矿床特征,类似于我国黑龙江省"东风山式"金矿,成因类型属火山-沉积作用有关的沉积变质改造型矿床.Abstract: The gold deposit in gold-bearing silicon-iron formation has been a characteristic deposit type found in the Kunlun mountains in recent years.Based on detailed geologicalwork, a number of gold ore deposits such as the Paximu,the Ku'a-Qiakenengsayi and the Mate deposits have been successively found in the area.The depositsoccur in theAqiang Formation that is a gold-bearing silicon-iron formation in the marine volcanic eruption-normal clastic deposition foamed in exhalative-sedimentation setting.Regionally, the deposits have clear features of strata-bound ore deposit, which is sinilar to the "Dongfengshan type" in Heilongjiang province.The ore genesis belongs to the type of sedimentary-metamorphic reworking related to volcanic-sedimentary processes.
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