贵州水城-纳雍地区锰矿地质特征、控矿因素及找矿标志

贵州水城-纳雍地区锰矿是产于中二叠统茅口组之上,中-上二叠统峨眉山玄武岩之下,茅口组第二段锰矿层与硅质岩和含锰灰岩关系密切,通过对该区锰矿地质特征和控矿因素分析,认为控矿的主要因素为岩相古地理、地层岩性、断裂构造。主要含锰岩系第二段为含锰、微含锰的硅质灰岩、含硅质灰岩、含钙质硅质岩及石灰岩等,第一段局部可见少量零星锰矿体,多无工业价值,根据锰矿富集成矿地质特征,该区找矿标志主要有岩相古地理、地层、岩石及露头。

GEOLOGICAL CHARACTERISTICS,ORE CONTROLLING FACTORS AND PROSPECTING MARKS IN GUIZHOU SHUICHENG AREA OF NAYONG MANGANESE ORE

Shuicheng -the harmony region manganese ore is native to the middle Permian mao group (P2m) above the mouth, on - in the Permian series emeishan basalt (P2-3β), manganese ore which are found in the middle Permian emeishan basalt group, mao mouth group at the top of the rock series, the manganese content in manganese and manganese content in the siliceous rocks and limestones, based on the manganese ore geological characteristics and ore-controlling factors analysis, think that the main factors of controlling for lithofacies palaeogeography, formation lithology and fracture structure. Mainly containing manganese rock series in the second paragraph (P2m2), including manganese and manganese content in the micro of the siliceous limestone, siliceous limestone and calcareous siliceous rocks and limestone, etc., the first paragraph (P2m1) local visible a few sporadic manganese ore body, no commercial value, According to the characteristics of the manganese ore enrichment of ore-forming geological ore-prospecting criteria in the area are mainly lithofacies palaeogeography, strata, rocks, and outcrop.