摘要
蔡家山Au异常区位于长江中下游成矿带内,中小比例尺化探工作发现了以Au为主伴Pb、Zn、Ag、Cu、As、Sb、Hg、Bi等多种元素异常。1∶1万的土壤测量圈出10个异常,组合成3个异常带,对异常进行了异常强度、规模研究,制定了剥蚀程度指标。AP4、AP5、AP3具有Au、Pb、Zn异常强度高、规模大、剥蚀程度低的特点。经槽探工程揭露,发现了金、铅、锌相应的矿化体,同时认为矿体向深部还有延伸。该项研究证明,应用化探逐步缩小靶区是Au异常有效的勘查方法,对类似地区进行金多金属找矿具有示范作用。
The Caijiashan gold anomaly lies in metallogenic belt along the middle-lower Yantzge River reaches. Major gold anomaly associated with anomalies of Pb, Zn, Ag, Cu, As, Sb, Hg and Bi were found during medium-small scale geochemical exploration. Soil survey of 1： 10000 scale delineated 10 anomalies forming 3 anomalous zones, study on intensity and size of which leads to determination of indicators of denudation extent. AP4, AP5 and AP3 are characterized by highly anomalous Au, Pb and Zn with big scale and low denudation. Pitting disclosed mineralized bodies of Au, Pb and Zn respectively, which are thought to extend to the deep. It is suggested that gradually reducing the size of target area by geochemical survey is effective for gold anomaly searching and also helpful for prospecting gold-polymetallic deposits in similar areas.
出处
《矿产与地质》
2011年第4期295-301,共7页
Mineral Resources and Geology
关键词
金多金属异常
地球化学找矿
长江中下游
middle-lower Yangtze River reaches
gold-polymetallic anomaly
geochemical prospecting prognosis
