内蒙红花沟金矿控矿断裂构造

Ore-Controlling Faults in the Honghuagou Gold Mine, Chifeng,Inner Mongolia

红花沟金矿床属岩浆热液型脉状金矿。从构造与矿脉关系入手 ,分析已知矿脉分布规律 ,强调矿脉产出的构造部位 ,提出导矿构造、交汇构造和派生构造三种控矿构造。矿区内Ⅱ级断裂构造为导矿构造 ,北北西向或北西西向导矿断裂与东西向韧性剪切带相交汇区为有利的成矿区间 ,导矿构造的派生构造是金矿赋存的最有利部位。据此规律预测了重点找矿靶区并已为矿山找到了新的隐伏矿体 。

The Honghuagou gold deposit belongs to magmatic hydrothermal quartz vein type. Widely covered thick soil increases greatly the difficulty of finding new ores in the mine. This paper discusses the distribution laws of gold lodes, the relationship between the ore controlling faults and ore bodies, and proposes three fault types for gold mineralization in the mine: conductive, intersecting and subordinate. The Ⅱ rank of faults are the main conductive structures while the intersecting parts of NNW and NWW trending conductive faults and EW trending ductile shear zones provided ideal sites for gold mineralization and the subsidary of the conductive fault controlled the location of industral ore bodies. A large, blind ore body was found based on the fault studies, which could be the most important breakthrough recent years in the mine exploration.