贵州遵义县茶园锰铁矿地质特征及成因探讨

An Approach to the Geological Features and Genesis of the Chayuan Mn-Fe Deposit in Zunyi,Guizhou

贵州遵义县茶园锰铁矿属"遵义式锰矿"成矿带,具有一定的开发前景。该矿床赋存于二叠系上统龙谭组(P2l)底部,含矿岩层以粘土岩层为主,并含有大量的黄铁矿。通过对该矿矿床地质特征的野外调查,矿石矿物鉴定及元素分析,认为该矿床锰铁矿石为原生碳酸锰铁矿物,属于古风化壳沉积型矿床,锰质来源于晚二叠世湖盆周边玄武岩的古风化壳残留锰质,形成于弱碱性还原环境。

The Chayuan Mn-Fe deposit in Zunyi,Guizhou lies in the Zunyi type Mn ore belt.The deposit occurs in the base of the Upper Permian Longtan Formation.The host rock is a clay rock with pyrite.The deposit is an old weathering crust one with the ore of primary Mn-Fe carbonate minerals which were formed from Mn material derived from the Late Permian basalt.