摘要
河南省洛宁县金家湾金矿床产于华北地台南缘太华群石板沟组内。片麻岩蚀变后呈黄褐色块体。矿石主要为蚀变浸染网脉和少量含硫化物石英脉组成。矿床属绿岩带构造蚀变岩浸染型。按矿石类型拣块采样九个,含金品位1.5—108.93g/t。采掘揭露矿化带长千余米,含矿脉和矿化蚀变带宽20—30m。
The Jinjiawan gold ore deposit in Luoning County, Henan Province, occurs in Shibangou formation gneiss of Taihua Group on the sourthern margin of North China platform. The gneiss has been altered in to yellow-grey rock mass. The ore is mainly contaminated and altered network of veins and less sulphide-quartz veins. This gold ore deposil was discovered by the authors in June, 1988. Nine samples were collected. Gold content is 108.93 g/t to 1.5g/t. Mineralization zone in the deposit is 1000m long, and altered zone 20-30m wide is composed of four quartz veins which was excavated by some workers. This gold ore deposit occurs in tectonically altered genesis in the greenstone belt.
出处
《地质科学》
CAS
CSCD
北大核心
1991年第1期69-75,共7页
Chinese Journal of Geology(Scientia Geologica Sinica)
关键词
金矿
矿床
类型
矿化特征
绿岩带
gold ore deposit, greenstone belt, altered tectonite, disseminated ore
