摘要
陕西省宁强县铜厂湾金矿位于"勉略宁"三角地带内的勉县—阳平关断裂带上,金矿(化)体主要赋存于震旦系灯影组(Z_2dn^2)层内压扭型逆断层破碎蚀变带中,其含矿岩性为震旦系灯影组第一岩性段(Z_2dn^(2-1))和第二岩性段(Z_2dn^(2-2))构造接触部位的构造角砾状硅质白云岩中,矿床成因类型属地下热卤水渗滤型金矿床,为碳酸盐岩石中的微细粒浸染型金矿床。
The Tongchangwan gold deposit is located in the Mianxian-Yangpingguan fault zone that is confined in a triangle region surrounded by ＂ Mianxian-Lueyang-Ningqiang＂ . Regionally, it belongs to the same metallogenic belt with the Lijiagou gold deposit in Mianxian County. Gold mineralization （ore bodies） mainly occurs in the crushed alteration zone of compression-torsion reverse fault within the Sinian Dengying Formation （Z2 dn^2） . Ore-bearing lithology is of structural breccia siliceous dolomite that occurs in the tectonic contact zone between the first lithologic segment （Z2dn^2-1） and the second lithologic segment （Z2dn^2-2） in the Sinian Dengying Formation. The genetic type of the deposit belongs to an infiltration type gold deposit by underground hot brine and a fine-grained disseminated gold deposit in carbonate rocks.
出处
《陕西地质》
2017年第1期19-24,共6页
Geology of Shaanxi
关键词
宁强县铜厂湾
金矿床
构造破碎蚀变带
热卤水渗滤型
Tongchangwan of Ningqiang County
gold deposit
tectonic crushed alteration zone
hot brine filtration type
