四川兴文先锋硫铁矿地质特征及成矿规律

Geological characteristics and Metallogenic rules of Xianfeng Pyrite Deposit in Xingwen,Sichuan

先锋硫铁矿位于宜宾市兴文县。先锋硫铁矿主要矿石矿物为黄铁矿、白铁矿、胶黄铁矿;脉石矿物:高岭石、珍珠陶土等。矿石结构:半自形-自形晶粒结构、它形粒状结构、碎裂结构、变胶状环带结构;矿石构造:浸染状、条带状、网脉状、根须状、树枝状、团块状、结核状等构造。分析将从古地形初始、硫铁矿表生富集和硫铁矿成岩富集三个阶段。

Xianfeng pyrite is located in Xingwen County, Yibin City. The main ore minerals of Xian- feng pyrite are pyrite, white iron ore, colloidal pyrite, gangue minerals: Kaolinite, pearl clay and so on. Ore structure: semi -self-shaped and self-shaped grain structure, its grain structure, fragmentation structure, variable colloidal ring structure, ore structure: disseminated, banded, reticulated vein, root whisker, den- dritic, mass, tuberculosis and so on. The analysis will be carried out from three stages: the initial palaeoto- pography, the epigenetic enrichment of pyrite and the diagenetic enrichment of pyrite.