湘南二叠系岩石地球化学及其物源指示

Geochemistry and its Indication of the Provenance of Rocks of Permian System in Southern Hunan

湘南二叠系碎屑岩、泥质岩、碳酸盐岩和硅质岩，具有富集Ｓｂ、Ｍｏ、Ｃｕ、Ｐｂ、Ｚｎ、Ｓｎ、Ａｇ、Ｂｉ等元素的特征，是有利赋矿层位，其沉积物源具有陆源碎屑与火山物质混合的特点，当冲组硅质岩为非正常海相沉积成因。

Rocks of Permian System including sandstone,argillite,carbonate rocks and silicilith are relatively rich in Sb,Mo,Cu,Ph,Zn,Sn,Ag and Bi,and are also the favourable strata for ore-storing.Sediments in these rocks have the mixed proprerties of terrigenous fragments and volcanic materials,Silicilith of Dangcong Formation is of anormal marine origin.