西秦岭铧厂沟地区金矿床成矿规律研究

铧厂沟金矿床是近年来在西秦岭地区金矿的新突破,位于秦岭山脉西部之南麓,地势形态受侵蚀、剥蚀作用形成的低—中山地貌类型,地形切割中等,地势西高东低,金矿床产于中下泥盆统三河口群地层,通过对矿体形态、规模、厚度、品位、石英脉发育程度的研究,认为该矿床受构造作用的强度制约,就矿体的赋存特征来看,矿体既受层控,又严格受构造(蚀变)带控制,赋矿岩石为碎裂蚀变碳酸盐岩,黄铁矿化、硅化蚀变较强,并与金矿(化)体关系最为密切,矿石中金品位高、低与蚀变强度密切相关。根据赋存特征将金矿化蚀变带分两大类:一是构造蚀变岩型、二是蚀变细碧岩型。该矿床根据研究区内所施工的槽、坑、钻探控矿情况看,不论是在地表或深部,对所控矿体都未圈边,据此预测本矿区深部及外围(矿体向东、向西)仍还有较大的找矿远景。

Research on metallogenic regularity in Huachanggou gold deposits of West Qinling Mountains

Huachanggou gold deposit is a new breakthrough for gold prospecting in recent years in the West Qinling region.Mining area is located in the south of west Qinling Mountains,the terrain characteristics is formed by the erosion,erosion of low-zhongshan landscape types,topography and cutting medium,terrain is high in west and low in east,gold deposit in the Lower Devonian estuary Group strata,ore body shape,size,thickness,grade quartz veins degree of development of the deposit by the tectonic strength constraints.Regarding the existing features of the ore body,ore body is well received by layer control,and strictly controlled by the structure（alteration） control,host rocks fragmentation altered carbonate,pyrite,silicification strong alteration and gold mine（of） the body is most closely related,high grade gold in ores,is closely related to the strength of the low and alteration.According to occurrence characteristics,gold mineralization alteration zone divided into two categories：first,the altered rock type,the second is altered spilite type.The deposit according to the study area construction tank,pit,drilling,ore-controlling,whether on the surface or deep,none of the alleged orebody circle edge,to predict the mine deep and peripheral（orebody east,west） is still of a large prospecting.