摘要
根据龙水金矿Ⅱ号矿化带的地质特征和不同地质体中微量元素的分布特征、黄铁矿中微量元素的组合特征、稀土元素的分布模式、Ｒｂ－Ｓｒ法确定成矿年龄与锶同位素示踪、铅同位素研究及硫、氧、碳同位素组成的测定结果，论证了龙水金矿赋矿地层以富集Ａｕ、Ａｇ、Ｃｕ、Ｐｂ、Ｚｎ、Ｓｂ、Ａｓ等元素组合为特征；成矿物质可能主要来自花岗岩体，围岩提供了部分成矿物质，有大气降水加入；推测花岗闪长岩的源岩包括古老地壳物质；金矿形成于燕山中期。
The paper discusses the geological setting,the distribution of trace elements in various geological bodies,the association of trace elements in pyrites and the REE distribution patterns,as well as the Rb-Sr ore-forming ages,Sr isotopic tracing,Pb,S,O,C isotopic data of the No.2 mineralization zone of Longshui gold deposit.The results show that the host rock contains abundant Au,Ag,Cu,Pb,Zn,Sb and As;the oreforming materials came mainly from granitoids,with some from the wall rock;meteoric water has contributed to the formation of hydrothermal solutions;the source rock of granitoids is ancient crustal materials;and the gold deposit formed during the middle Yanshanian period.
出处
《地球化学》
CAS
CSCD
北大核心
1994年第C00期48-57,共10页
Geochimica
