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机构地区:[1]吉林省勘查地球物理研究院,吉林长春130012
出 处:《吉林地质》2013年第4期43-46,共4页Jilin Geology
摘 要:兴胜岩金矿处于大兴安岭中段东西向金银钼成矿带上,位于火山盆地边缘隆起带,火山期后热液活动强烈,构造都很发育,控制着矿(化)体的分布。火山期后次火山岩、花岗斑岩、似斑状花岗闪长岩和闪长岩等岩浆热液活动是重要的成矿热源,成矿与近东西向次级构造有关,矿体产于蚀变破碎带石英脉及蚀变角砾岩中。通过对金矿床地质特征及矿床成因分析,认为构造、岩浆活动在成矿过程中起着重要作用,对大兴安岭中段东坡找矿起到指导作用,明确了本区找矿方向。Xingsheng primary gold deposit in Arong Banner of the Inner Mongolia is located in the EW gold,silver and molybdenum mineralization belt,middle part of Greater Khingan Range,it is located in the margin uplift belt of volcanic basin,postvolcanic hydrothermal activities were strong,structures are developed,they control the distribution of ore mineralization body.Postvolcanic volcanics,granite porphyry,porphyritic granodiorite and granodiorite magma hydrothermal activity are an important metallogenic heat source,mineralization had relation to the EW secondary structure,the ore bodies occur in quartz vein of altered fractured zone and altered breccia.Through the analysis on the geological features and genesis of gold deposit,it is considered that the tectonic and magmatic activity play an important role in the mineralization process,the mineral prospecting in the middle part of Greater Khingan Range on the east slopes plays a guiding role,the prospecting target shows clearly in this area
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