黑龙江省争光金矿床成因及找矿标志

来源期刊：黄金2010年第6期

论文作者：付艳丽 杨言辰

文章页码：13 - 18

关键词：矿床成因； 找矿标志； 低温热液型岩金矿床； 争光金矿床

Key words：deposit genesis； prospecting criteria； Zhengguang gold deposit

摘    要：争光金矿床位于大型多宝山铜(钼)矿床、铜山铜(钼)矿床的南东部,属于多宝山矿田中的一部分,目前该矿床已探求金金属量12t。北西向压扭性断裂带、北东向张扭性断裂带、近南北向扭张性断裂带的3组构造带交汇处有闪长岩小岩体侵入多宝山组安山质火山岩,反映岩浆主动侵位活动和所含的大量挥发分的期后热液是本矿床形成的最有利条件之一。多宝山组在金成矿前形成了广泛的青磐岩化,之后局部发生黄铁绢英岩化,黄铁绢英岩化带是寻找矿体群的直接标志。流体包裹体均一温度为98～178℃,矿床的成因类型为与岩浆侵入有关的低温热液型岩金矿床。

Abstract: Zhengguang gold deposit lies in the southeast of the large Duobaoshan Copper ( Mo) deposit-Tongshan Copper ( Mo) deposit and it is one part of Duobaoshan deposit field.At present,the total gold reserve,that has been proved,is 12 tons.In the conjunction of N-W Direction compression-shear faults belt,N-E direction tensional-shear belt and near S-N tension rift belt,there are diorite small rock body intruded in the andesite volcanic rock of Duobaoshan formation,which reflects the active emplacement activity and the hydrothermal fluid that contained mass volatile flux is one of the most advanced condition for the formation of this deposit.Before the mineralization of gold deposit,there were large area of propylitization in Duobaoshan Formation,after that there were pyritic sericitization locally,which are the direct criteria for tracking the ore body groups.The average temperature of fluid inclusions is 98-178 ℃ and the formation type of the deposit is low temperature hydrothermal rock gold deposit which is related to the magma intrusion.