雪峰山中段砂岩层控型金矿地质特征及控矿机理浅析
GEOLOGICAL CHARACTERISTICS OF THE STRATA-BOUND GOLD DEPOSITS IN MID-XUEFENGSHAN MOUNTAIN AND ORE -CONTROLLING MECHANISM
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摘要: 雪峰山中段金矿类型众多,其中,近年来新发现的砂岩层控型金矿分布广、品位富、工业价值大。芙蓉溪群砖墙湾组(Ptfz)长石石英杂砂岩和震旦系长滩组(Zc)含砾长石石英杂砂岩均具明显的控金作用。砂岩层往往大面积发生矿化蚀变,矿体严格受砂岩层控制。在多种蚀变叠加及NW与NE向两组构造交汇部位往往形成"T"状富金矿柱。Abstract: In the middle part of the Xuefengshan mountain exist many types of gold deposits,of which a new type-a strata bound gold deposits often widespread and of high grade has been recently discovered.The gold deposit is closely associated with the feldspathic quartz gray-wacke of the Zhuanqiangwan Formation of the Furongxi Group (Ptfz) and the pebble-bearing feldspathic quartz gray-wacke of the Sinian Changtan Formation(Zc)."T" shaped high grad gold ores usually occur in the confluence of various types of alteration or where the NW-trending structures join the NE-trending structures.
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Key words:
- strata bound gold deposit /
- Xuefengshan mountain
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