喀什凹陷下白垩统克孜勒苏群铀矿化成因浅析  

Cause Analysis of Uranium Mineralization in Lower Cretaceous Kizilsu Group in Kashi Depression

作　　者：李炳谦 王强强[1] 张明正[1] 鲁克改[1] Li Bingqian;Wang Qiangqiang;Zhang Mingzheng;Lu Kegai(No.216 Geological Party,CNNC,Urumqi,Xinjiang,830011,China)

机构地区：[1]核工业二一六大队,新疆乌鲁木齐830011

出　　处：《新疆地质》2022年第2期246-249,共4页Xinjiang Geology

基　　金：中国核工业地质局铀矿地质项目(201907);自主科研项目(216-2020-03)共同资助。

摘　　要：喀什凹陷克孜勒苏群发育众多铀矿点、矿化点,其成因存在较多争议,具有同生沉积-淋滤地沥青砂砾岩型、地沥青叠加式层间氧化带砂岩型及与油气褪色作用相关的砂岩型铀矿床等观点。在分析铀矿化形成条件基础上,研究喀什凹陷巴什布拉克铀矿床铀源、氧化还原作用、铀矿化赋存空间及油气侵入,认为克孜勒苏群中铀矿化属古潜水氧化成因,铀矿化受区域性古潜水氧化作用控制。There are many uranium ore spots and mineralization spots in the Kizilsu group of Kashi depression,and there are many controversies about their genesis,such as syngenetic sedimentary leached asphaltic glutenite type,asphal-tic superimposed interlayer oxidation zone sandstone type and sandstone type uranium deposits related to oil and gas fad-ing.This paper studies the uranium source,redox process,occurrence space of uranium mineralization and oil-gas inva-sion of bashbulake uranium deposit in Kashi sag.Based on the analysis of the formation conditions of uranium mineral-ization,it is considered that the uranium mineralization in the Kizilsu group is caused by paleophreatic water oxidation,and the uranium mineralization is controlled by regional paleophreatic water oxidation.

关 键 词：喀什凹陷 巴什布拉克铀矿 克孜勒苏群 铀矿化成因 古潜水氧化带 

分 类 号：P619.14[天文地球—矿床学]