江西省万年县南山银矿地质特征及成因初探

Geological characteristics and Genesis of Nanshan silver deposit in Wannian County, Jiangxi Province

万年县南山银矿床产于新元古界万年群牛头岭组变质岩内,受区域性北东向丰城-婺源断裂构造及旁侧次级北东向断裂构造控制,矿区已知含矿硅化破碎带10余条,其中V1、V2、V3矿带具工业利用价值,主要有用组分为银,伴生有用组分为金、钨等。本文着重阐述矿床矿化特征,并对矿床成因进行初步探讨。

The Nanshan silver deposit in Wannian County occurs in the metamorphic rocks of the Niutouling Formation of the Wannian Group in the Neoproterozoic. It is controlled by the regional NE-trending Fengcheng-Wuyuan fault structure and the adjacent secondary NE-trending fault structure. There are more than 10 known mineral-bearing silicified fracture zones in the mining area, among which the V1, V2 and V3 ore zones are of industrial use value. The main useful components are silver and the associated useful components are gold and tungsten. In this paper, the mineralization characteristics of the deposit are emphatically expounded, and the genesis of the deposit is preliminarily discussed.