河北康保万隆店金矿床地质特征及找矿标志

Geological Characteristics and Ore-Prospecting Indicators for Wanlongdian Gold Deposit in Kangbao County,Hebei Province

万隆店金矿床(体)赋存于太古界红旗营子群第二岩组第一岩性段底部石墨(含石墨)黑云斜长片麻岩和石墨(含石墨)角闪斜长片麻岩中,矿体主要呈脉状产出.矿石的工业类型主要为石英脉型,少量为构造带硅化蚀变岩型.金主要以银金矿和自然金出现.成矿受地层、构造和岩浆岩控制明显.矿床成矿物质来自深部岩浆热液及围岩,属多期次叠加的受构造控制的石英脉型金矿.地层和构造是主要找矿标志.

Wanlongdian gold deposit occurred in the.graphite （containing graphite） biotite plagioclase gneiss and graphite （ containing graphite） hornblende plagioclase gneiss at the bottom of the first lithologic segment of the second rock member in Archeozoic Hongqiyingzi group. The ore body is mainly vein in shape. The industrial ore type is mainly quartz vein type, and minor structural belt silicifieation altered rock type. Gold presents mainly electrum and natural gold. Mineralization is strictly controlled by strata, structure and magmatic rocks. The ore-forming materials were from deep magmatie hydrothermal and wall rock. It is a structurally controlled quartz vein type gold deposit with muhiple times of superposition. The strata and structure are the main ore-prospecting indicators.