摘要
腾冲铀矿和盈江铀矿是世界上首次发现的铀矿物，产出于滇西地区一个混合岩型铀矿化点的氧化带上。本文总结了这类铀矿化的区域地质背景、矿化特征及找矿判别依据。认为变质地体中的深变质带、含矿主岩中铀丰度值高、断裂发育、存在碱交代及气成高温热液蚀变、显示放射性异常等是这类铀矿化的主要找矿判别依据。
Tengchongite and Yingjiangite are uranium minerals discovered firstly in the world. They occur in an oxidized zone of the U mineralization of migmatite type in West Yunnan. The summary of the regional geological setting, mineralization charateristics and prospecting indieations of this U mineralization is put forward in this paper. It is believed that the main indications of it are the katazone of metamorphic terrane, high U abundance of ore-bearing host rock, development of fracture, alkali metasomatism and pneumatolytic-high T hydrothermal alteration, appear-ance of radiation anomaly, etc.
出处
《云南地质》
1994年第1期98-105,共8页
Yunnan Geology
