江苏盱眙金矿化带的基本特征及找矿远景

江苏盱眙金矿化带位于古桑乡石牛山-小团山一带,根据土壤和基岩的化探资料,确定了6个金异常点;通过1:1万地质草测,确定了区内矿化带的空间分布、规模和产状.金矿化主要与南北向断裂有关.围岩蚀变主要有硅化、碳酸盐化及褐铁矿化.金矿化可分两类:一是破碎蚀变岩型,二是侵入接触带型.前者是在地层间的平缓碎裂岩和糜棱岩带,具泥化或红土化现象;后者系岩体与地层接触,形成硫化物或铁帽.盱眙一带金矿找矿前景以断裂附近的岩浆岩体侵入接触带为好.

Characteristics of the gold mineralization belt in Xuyi area,Jiangsu province

The gold mineralization belt located in Shiniu Mountain - Xiaotuan Mountain in Gusang Town of Xuyi,Jiangsu province. Based on the exploration geochemistry of soil and rock, we define six anomalies of gold. The primary characteristics of ore - controlling, distribution, scale and occurrence of orebodies are drawn according to the geological measure in l: 10000. The gold mineralization is mainly related with the north - south fault and silicification, carbonatization, ferritization are commonly alterations. Two types of the gold mineralization are described, i. e. the fracturing - altering type and the intrusion - contact tape. The former occurs in smooth cataclasites and mylonites which have clayization and laterization. The latter one formed as sulfides and gossan. The intrusive - contact belts play an important contribution in prospecting the gold deposit.