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黑龙江省小兴安岭南部地区主要地层有下寒武统铅山组、中奥陶统大青组、二叠系上统五道岭组、上侏罗统帽儿山组、下白垩统板子房组。奥陶系铅山组和大青组,富集锡、银、钨、铅、锌,亏损金。其中铅山组为该地区主要成矿地层。燕山期的帽儿山组、板子房组均富集锡、银、钼、钨元素,亏损金、铜。金元素的变异系数均小于1。而全部富集元素平均值均比克拉克值和华夏大陆的丰度高出1~3倍,且其变异系数均大于1。
The main formations in the southern part of Xiaoxing’an Mountains in Heilongjiang Province are the Lower Cambrian Qianshan Formation, Middle Ordovician Daqing Formation, Permian Upper Wudaoling Formation, Upper Jurassic Maoershan Formation and Lower Cretaceous Panzifang Formation. The Ordovician Qianshan Formation and Daqing Formation are rich in tin, silver, tungsten, lead, zinc and loss gold. Among them, the Qianshan Formation is the main metallogenic formation in this area. Yanshan period Maoershan group, Banzaifang group are rich in tin, silver, molybdenum, tungsten, loss of gold, copper. The coefficient of variation of gold is less than 1. However, the average value of all enrichment elements was 1 ~ 3 times higher than that of Clarke and Huaxia continent, and the coefficient of variation was greater than 1.