滇西龙川江盆地铀矿化特征  

Characteristics of uranium mineralization in Longchuanjiang basin,western Yunnan

作　　者：李国新[1] 孙泽轩[1] 姚毅锋 陈勇 

机构地区：[1]成都理工大学,四川成都610059 [2]核工业280研究所,四川广汉618300

出　　处：《铀矿地质》2005年第5期268-274,共7页Uranium Geology

摘　　要：龙川江盆地是滇西主要的铀矿赋矿盆地之一,现已探明一批砂岩型铀矿床。本文根据野外地质调查及室内系列编图,运用水成铀矿成矿理论,对龙川江盆地的基本特征及铀矿化特征进行了讨论,认为铀矿床主要分布于西部斜坡带,赋存于冲积扇沉积体系砂体中,且与潜水层间氧化带关系密切。The Longchuanjiang basin is one of the main uranium hosting basin in western Yunnan, and a series of sandstone-type uranium deposits have been explored up to now. Based on the field geologic investigation and the compiling a set of maps, and applying the theory of hydrogenic uranium deposits, this paper discusses basic characteristics of the Longchuanjiang basin and the uranium mineralizations. It is concluded that uranium deposits are mainly distributed on the western slope, and occur in sand bodies of alluvial fan depositional system, and are closely associated with phreatic-interlayer oxidation zone.

关 键 词：砂岩型铀矿 铀矿化特征 龙川江盆地 

分 类 号：P612[天文地球—矿床学]