湖北省主要铀矿化类型及区域铀成矿规律  

Main Uranium Mineralization Types and Regional Uranium Metallogenic Patterns in Hubei Province

作　　者：李安邦 冯超 陈小凡 丁迪生 LI Anbang;FENG Chao;CHEN Xiaofan;DING Disheng(Hubei Nuclear Industry Geological Surrey,Xiaogan,Hubei 432000,China)

机构地区：[1]湖北省核工业地质调查院,湖北孝感432000

出　　处：《世界核地质科学》2022年第3期458-468,共11页World Nuclear Geoscience

基　　金：湖北省自然资源厅地勘基金项目“湖北省罗田-蕲春地区铀钍多金属矿远景调查评价”(编号:﹝2018﹞46)支持。

摘　　要：为系统梳理湖北省铀成矿地质特征和成矿规律,文章以湖北省各类型铀矿化信息为研究对象,在综合归纳前人勘查成果基础上,通过研究典型铀矿床(点)成矿地质特征和区域成矿规律,将湖北省主要铀矿化类型划分为硅泥岩型热液叠加改造亚型、砂岩型、花岗岩型内外带热液亚型等3种主要类型。总结了鄂西北桂坪、鄂东南麦市和宜昌盆地大桥边等典型铀矿床(点)的成矿地质特征。圈定了鄂西北碳硅泥岩型铀成矿带、鄂东南花岗岩型铀成矿带、鄂中砂岩型铀-多金属成矿带3个主要铀成矿区带。提出未来铀矿勘查工作部署应以鄂西北两竹两郧地区、鄂中荆门、当阳、宜昌地区和鄂东南幕阜山岩体内外接触带为主,主攻找矿类型为碳硅泥岩型热液叠加改造亚型、砂岩型、花岗岩型内外接触带热液亚型3种。Based on the comprehensive summary of the previous exploration results,this paper divided uranium mineralization in Hubei Province into three main type:hydrothermal superposition transformation subtypes of carbonaceous-siliceous-argillaceous type,sandstone type,inner and outer zone hydrothermal subtypes of granite type.Through the study of typical uranium deposits(occurrence)and mineralization regularity.The mineralization geological characteristics of typical uranium deposits(occurrence)in Guiping northwest Hubei,Maishi southeast Hubei and Yichang Basin were summarized.The three main uranium mineralization belts were delineated,they are the carbonaceous-siliceousargillaceous belt in northwest Hubei,the inner and outer contact subtype of the granite belt in southeast Hubei,and the sandstone uranium-polymetallic belt in central Hubei,and it was proposed that the future uranium exploration work should mainly focus in the area of Jingmen,Danyang,Yichang of the northwest Hubei,around the inner and outer zone of Mufushan granite body in southeast Hubei.The main prospecting should be oriented to the types of hydrothermal superposition transformation subtypes of carbonaceous-siliceous-argillaceous type,sandstone type and inner and outer contact zone subtype of granite type.

关 键 词：铀矿化类型 铀成矿规律 碳硅泥岩型 花岗岩型 区域成矿模式 湖北 

分 类 号：P619.14[天文地球—矿床学]