摘要
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。
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.
出处
《火山地质与矿产》
2000年第3期189-198,共10页
Volcanology & Mineral Resources
关键词
金矿化
特征
找矿远景
江苏
金矿床
gold mineralization
characteristics
Xuyi
Jiangsu province
