摘要
土龙山后生改造中温热液石英脉带型金矿床，定位于震旦系硐门组杂砂岩中，受北西西向断裂和节理密集带控制。矿体呈脉带状平行侧列、尖灭再现展布。金以明金单体产出为主，贫硫化矿物，易采选。该矿床的形成与晋宁—澄江期构造演化有关。
Controlled by a NWW-trending closely spaced fracture and joint zone ,the Tulongshan epigenetic reformed mesothermal gold deposit of the quartz vein zone type was emplaced in graywacke of the Sinian Tongmen Formation .The ore bodies display parallel ,en echelon and end-to-end alignment,occurring as a vein zone.Gold occurs largely as straight native gold ore that is poor in sulfide ,easy to mine and freemilling.The deposit is the outgrowth of tectonic evolution of the Jinning-Chengjing Period.
出处
《江西地质》
1999年第2期106-110,共5页
Jiangxi Geology
关键词
金矿床
地质特征
构造演化
成矿机制
gold ore
geological characteristics
tectonic evolution
Tulongshan
Jiangxi
