摘要
成矿地质条件研究对于隐伏矿体预测及电法勘查评价具有重要作用。通过对团结沟金矿的研究认为其成矿地质条件是老基底变质杂岩、斜长花岗斑岩、构造破碎带及裂隙带,其中构造破碎带是最主要成矿地质条件。构造破碎带为该区电法勘查提供前提。地质及电法勘查结果表明:金矿石是本区主要极化体;在团结沟及张才沟地区均获得低阻高极化异常体和高阻高极化异常体(ηs≥4.5%);高阻高极化异常体可能找到含金石英脉,而低阻高极化异常体可能找到含矿破碎带。该区的验证孔中发现了矿体,证明了在团结沟电法找金效果明显。
It is important to research geological mineralization factors for blind ore bodies forecasting and electric prospecting evaluation. In the research on the Tuanjiegou gold deposit, the authors have found that the main factors of mineralization are metamorphic rocks of basement, plagioclase granitic porphyry, structural belt and cranny belt. Among these factors the structural belt is the most important. It supplies the precondition for electric prospecting in the studied area. The results indicate that the gold ores are the main polarization body in this area. The abnormity has been gained with low resistance and high polarization in Tuanjiegou and Zhangcaigou target areas （ηs≥4.5%）. The gold bearing quartz veins can be found in the abnormity body with high resistance and high polarization, while gold bearing structural belt can be found in the abnormity body with low resistance and high polarization. In the validate bore the gold mineralization body was found, indicating the obvious effecting of electric prospecting for gold finding in Tuanjiegou.
出处
《世界地质》
CAS
CSCD
2008年第2期183-187,共5页
World Geology
基金
吉林大学"985工程"二期科技创新平台项目
中国黄金集团公司项目(2000-1和2003-1)
关键词
成矿地质条件
电法勘查
极化体
团结沟金矿
geological condition of ore forming
electric prospecting
polarization body
Tuanjiegou gold deposit
