摘要
雪峰金矿田位于雪峰弧形金锑成矿带中段,被两大断裂、三大岩体所夹持,具有地层-构造岩浆岩三位一体的极好成矿条件。向韧脆性剪切带和向张剪性破碎蚀变带共同控制了-NENW矿床、矿体的产出。矿床类型为韧脆性剪切带型,可分为破碎蚀变岩型、砂岩层控细脉浸染型、片理化蚀变岩型、石英脉型个亚类。面上和深部找矿潜力巨大,预测该区金资源量在4n×102 以上,t 进一步加强该区地质调查工作,有望实现湖南金矿找矿的重大突破。
Xuefeng Gold ore field occurs in the middle of Xuefeng arc Au-Sb metallogenic zone among two deep large fractures and three lithosome, with excellent metallogenic conditions of stratum, structure and magmatite as a whole. Occurrences of the deposit and orebody were controlled by NE trend's shear zone with britle and ductility, and NW trend's broken alternation belt with tension and shear stress together. The deposit is shear zone type with britle and ductility, which may be divided into four subtypes: broken alternation rock type, veinlet impregnated type controlled by sandstone bed, altered rock type with schistosity plane, and quartz-vein type. Au-source quantity is forecast over several hundred tons with prospecting potential large in deep ground and on the ground. An important breakthrough in prospecting Au-deposit in Hunan may be achieved after further enhancement of geological survey in this area.
出处
《湖南地质》
2002年第2期100-104,共5页
Hunan Geology
关键词
矿床特征
类型
找矿前景
金矿田
成矿条件
蚀变
韧性剪切带
Deposit characteristics
Au-deposit type
Prospecting foreground
Xuefeng gold ore field
