摘要
脑包沟金矿床是受韧性剪切带控制的中—低温热液矿床,金矿石主要为蚀变岩型,含少量石英脉型。矿石结构有交代结构、骸晶结构、网脉状结构、包含结构、结晶粒状结构,矿石构造主要为浸染状构造、脉状构造和块状构造。金呈独立的金矿物(主要为银金矿)产出,以裂隙金、包裹金、粒间金等形式嵌布于黄铁矿、石英、钾长石、钠长石、方铅矿、褐铁矿等主要载金矿物中,金矿物形态多样,粒度以微粒为主。
Naobaogou gold deposit is a medium-low temperature hydrothermal type deposit controlled by ductile shear zones. It is characterized mainly as altered rocks partly with quartz veins. Ore textures are metasomatic, skeletal, reticulated,poikilitic and crystalline granular ones. The ore structure is characterized by disseminated, veinlet and block structures. Gold appears as independent minerals like silver-gold, occurring in the major gold-carrying minerals like pyrite, quartz, K-feldspar, albite, galena and limonite in the state of interlocking, inter-granular and enclosure. With different shapes, the gold minerals are commonly fine size particles.
出处
《黄金》
CAS
2014年第1期21-25,共5页
Gold
关键词
矿石特征
银金矿
赋存状态
脑包沟金矿床
内蒙古
ore characteristics
silver-gold ores
occurrence
Naobaogou gold deposit
Inner Mongolia
