摘要
治岭头金银矿床形成于晚侏罗世大规模的火山喷发之后，主成矿期年龄为１００×１０６ａ。锶同位素体系的研究，提供了对该金银矿床成矿物质源岩的限定，表明变质岩和火山岩作为成矿物源都参加了成矿过程，其成矿源岩约４０％为前寒武纪变质岩，６０％为晚侏罗世的火山岩。
Zhlilingtou goldsilver deposit was formed after the large scale eruption of volcanos in late Jurassic,the main metallogenic age is 100×10~6a. The study of strontium isotope system supplies implications for defining the oreforming source rocks of the deposit,which show that both the metamorphic rocks and the volcanic rocks participated in the metallogenic process as the source rocks.It is shown that 40% of the source rocks are made up of Precambrian metamorphic rocks,and 60%of the source rocks are the volcanic rocks of late Jurassic.
出处
《矿产与地质》
1998年第2期118-121,共4页
Mineral Resources and Geology
关键词
银矿床
成矿物质源岩
锶同位素体系
金矿床
Gold-silver deposit,Ore-forming source rocks,Sr isotope system,Zhilingtou,Zhejiang
