陕西省石泉县池河镇龙王洞锰矿地质特征

Geologic Features of Mn-Mine of Longwang Cave of Chihe Town

陕西省石泉县龙王洞锰矿赋存在新元古界震旦系陡山沱组地层中,锰矿体呈层状、透镜状,总体走向300(°)~340(°),倾向北东,长40~330 m,宽20~50 m,主要矿物成分为软锰矿,少量水锰矿和褐锰矿,含锰岩系由凝灰岩、硅质岩、锰矿层和黑色炭质绢云母片岩沉积组合;锰矿体高精度磁测异常和极化率异常具有较好的一致性,是寻找该类型锰矿的重要标志。

Longwang Cave Mn-mine exists in ancient neoproterozoic sinian system in the Doushantuo formation strata. The manganese ore body is bedded and lenticular to 300（ °） ~ 340（ °）,north east,40 ~ 330 m long and20 ~ 50 m wide. Its main mineral composition covers soft manganese ore,including manganese ore,a small amount of water and the brown manganese ore. Manganese rock series are composed of tuff,siliceous rocks,manganese ore layer and the carbon black silk mica schist in sedimentary assemblage. Manganese ore body of high accuracy magnetic survey and polarization anomaly will be good consistency,as is an important symbol of looking for this type of manganese ore.