摘要
325、326矿床位于ZG复式花岗岩体中段,属花岗岩型铀矿床,对其研究表明,两矿床成矿热液为粒间溶液与大气降水的混合热液,成矿物质主要来自花岗岩,部分来自寒武系地层,矿床形成与钠交代密切相关,并受构造控制.
The deposits No. 325 and No. 326 lie in the middle zone of ZG composite granite bodies. They belong to uranium deposits of granitic type. Before the ore-forming stage the mineralization fluid mainly came from the magama hydrothermal solution. In ore-forming stage the mineralization fluid was the mixture of magama hydrothermal fluid and meteoric water and after ore-forming stage, the meteoric water rain. Studying from isotopes of sulphur and lead made it clear that the ore-forming materials of the deposits mainly came from granite bodies and partly came from the stratum of Cambrian system which is around the deposits. The soda-metasomatism has importance to mineralization. It changed the physical and mechanical property of rock and cause uranium mobilization and transference. The structure controled the distribution of the mineral bodies.
出处
《地质找矿论丛》
CAS
CSCD
1993年第3期71-80,共10页
Contributions to Geology and Mineral Resources Research
基金
中科院矿床地球化学开放实验室资助项目
