摘要
硅化蚀变岩型金矿发现于胶北隆起招掖成矿带，矿体产于韧性剪切带，其产状与本区其他类型金矿不同。金矿石为含金长英质糜棱岩，硅化发育。主要金属矿物是，黄铁矿、方铅矿、闪锌矿、自然金、银金矿、硫蹄铋矿。与黄铁绢英岩化蚀变岩型金矿相比，微量元素Ｃｏ、Ｎｉ含量明显偏高，而Ｃｕ、Ｐｂ、Ｚｎ、Ｈｇ含量明显偏低。其成因类型为大气降水变质水热液型金矿。其成矿深度大，是胶北地区深部找矿的重要新类型。
Silicification altered rock type Au ore is discovered in ductile shear zones in Zhao-Ye Au ore belt in Jiaobei Upwarp. The ore is composed of Au felsic mylonite. Silicification is developed.Pyrite, galena, sphalerite, native gold, electrum and joseite are the main ore minerals. Compared to pyritization sericitization altered quartzite rock type Au ore micro-elements of Co, Ni are higher and Cu, Pb, Zn Hg, lower. It is of meteoric water and metamorphic water genetic ore with bigger ore-forming depth. Therefore, such kind of ore is the prospecting targets at depth in Jiaobei Aea.
出处
《地质找矿论丛》
CAS
CSCD
1995年第2期1-15,共15页
Contributions to Geology and Mineral Resources Research
