摘要
东洞沟金矿位于党河南山金成矿带上,是由断裂构造控制的岩浆热液型金矿。中奥陶统砂岩是本区金成矿的地层条件。断裂构造及由其形成的蚀变破碎带控制着区内金矿体的形态、产状及延伸,是区内金的导矿和容矿构造。东洞沟金矿的矿体多分布在志留纪的闪长玢岩、石英闪长岩和中奥陶统砂岩的接触带上,岩体既提供了热源,也提供了部分矿质,对东洞沟金矿的形成起重要作用。
Dongdonggou gold deposit is located in the Danghenanshan gold metallogenic belt, is a magmatic hydrothermal type gold deposit controlled by faults. Middle Ordovician sandstone is the formation of gold mineralization in this area. Fault structure and formed by the erosion becomes broken zone controlled the gold mineralized ore body shape, occurrence and extension is gold mineralized ore lead and ore control structure.Dongdonggou gold orebodies are mainly distributed in the Silurian flash porphyrite, quartz flash long rock and Austrian Ordovician sandstones of the contact zone, rock not only provides the heat source, also may provide a partial mineral, of Dongdonggou gold deposit formation plays an important role.
出处
《甘肃地质》
2015年第4期35-40,共6页
Gansu Geology
关键词
党河南山
东洞沟金矿
蚀变破碎带
控矿因素
Danghenanshan
Dongdonggou gold deposit
alteration belt
ore controlling factors
