纳米比亚达马拉造山带白岗岩型铀矿成矿规律及找矿思路  

Metallogenetic Regulation of Alaskite-type Uranium Deposit and Its Prospecting Method for Damala Orogenic Belt in Namibia

作　　者：赵希刚 朱西养 杨永记 郑仕忠 傅俭生 

机构地区：[1]中国国核海外铀业有限公司,北京100045

出　　处：《铀矿地质》2015年第4期445-452,共8页Uranium Geology

摘　　要：文章根据纳米比亚达马拉造山带白岗岩型铀矿成矿所处的位置、与侵入岩和地层的关系,以及后期蚀变特征,从基底隆起周边控制铀矿床分布,地层接触带和岩性变异部位控制矿床定位,大理岩层是矿床产出的有利层位,D、E型白岗岩脉发育直接控制矿化,构造热液蚀变是富矿形成的必要条件等几个方面,研究了白岗岩型铀矿的成矿规律。在此基础上,提出了从区域评价到钻探查证落实铀矿床的找矿技术思路。Based on the study of mimeralization and its relationship with intrusive rock and strata ,altera‐tion feature of alaskite‐type uranium deposit in Damala orogenic belt in Namibia , the metallogenetic reg‐ulation of alaskite‐type uranium deposit was summarized from the deposit distribution around the doming edge of basement rock ,control of strata contact zone and lithologic mutation zone ,favourable host rock of marble , the vein of D and E‐type alaskite , structural‐hydrothermal alteration. The prospecting method for finding alaskite‐type uranium deposit was proposed for regional evaluation and deposit explo‐ration.

关 键 词：成矿规律 找矿思路 白岗岩型铀矿 达马拉造山带 纳米比亚 

分 类 号：P612[天文地球—矿床学]