摘要
本文主要根据热力学理论和方法，探讨了光石沟花岗伟晶岩型铀矿床的成矿物理化学条件及铀在气成热液中的迁移沉淀机制。研究表明，含铀气成热液为还原性质的酸性介质，铀在其中主要以形式迁移。黑云母的形成降低了矿化剂氟的含量，导致水解、铀沉淀成矿。
This papre focuses on the physicochemical conditions of uranium mineralization inGuangshigou granite-pegmatite type uranium deposit and the mechanism of migration and precip-itation of uranium in the pneumatolytic hydrothermal solution according to the theories and meth-ods of thermodynamics. The studies show that U-bearing pneumato hydrothermal fluid is a re-ductive and acidic medium. Among it is a predominant form of uranium migration. In themineralized period,the formation of biotite reduce the content of fluorine and make in thestate of hydrolysis and form uraninite.
出处
《华东地质学院学报》
CAS
1994年第3期264-269,共6页
Journal of East China Geological Institute
关键词
铀矿床
铀迁移
沉淀机制
伟晶岩型
Pneumatolytic hydrothermal fluid
migrational form
hydrolysis
