粤北诸广岩体南部铀成矿地质特征及找矿潜力  

Geological Characteristics and Prospecting Potential of Uranium Mineralization in the South of Zhuguang Pluton

作　　者：李海东[1,2,3] 江卫兵 刘斌[2] 赖静 郭新文 LI Haidong;JIANG Weibing;LIU Bin;LAI Jing;GUO Xinwen(State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang,Jiangxi 330013,China;Research Institute No.290,CNNC,Shaoguan,Guangdong 512029,China;Research Center for Petrogenesis and Mineralization of Granitoid Rocks,China Geological Survey,Wuhan,Hubei 430205,China)

机构地区：[1]东华理工大学核资源与环境国家重点实验室,江西南昌330013 [2]核工业二九〇研究所,广东韶关512029 [3]中国地质调查局花岗岩成岩成矿地质研究中心,湖北武汉430205

出　　处：《铀矿地质》2024年第3期442-458,共17页Uranium Geology

基　　金：中国核工业地质局项目(编号:202238、202239);中国地质调查局花岗岩成岩成矿地质研究中心开放基金项目(编号:PMGR202107);中国铀业有限公司-东华理工大学核资源与环境国家重点实验室联合创新基金(编号:NRE2021-09)联合资助。

摘　　要：诸广岩体南部地处闽赣后加里东隆起与湘桂粤北海西印支坳陷刚柔地块结合部,位于东西向南岭铀成矿带与北东向桃山-诸广铀成矿带的交汇部位,自西向东分布有城口、长江、百顺和全安4个矿集区。文章通过对诸广岩体南部区域成矿地质背景、岩浆热液活动、铀源以及控矿因素等成矿地质条件综合分析,同时结合前期已有工作成果,系统梳理了区内铀矿化类型、赋存空间及控矿因素;在此基础上进一步分析了诸广岩体南部铀找矿潜力,提出了以下找矿方向:1)棉花坑、书楼丘、水石等矿床深部及外围是区内成矿最有利地段,为下一步找矿重点地段;2)塘湾矿床深部、企岭、黄沙桥等矿床外围新发现的成矿有利地段可进一步进行扩大或钻探验证;3)对比华南邻区花岗岩外带型成矿地质条件和找矿成果,认为诸广岩体南部外带型铀矿化可作为区内铀矿的重要找矿方向。The southern part of the Zhuguang pluton is located at the combination of Fujian-Jiangxi Post-Caledonian uplift and Hunan-Guangx-Guangdong Hercynian soft block in tectonics,and fall to the the intersection of uranium metallogenic belts of the East-West Nanling and the North-East of Taoshan-Zhuguang.Four uranium mimeralzaition cluster are ddiscover in this area from west to east,they are Chengkou,Changjiang,Baishun and Quan'an.Through comprehensive analyses of the mineralization geological background,magmatic hydrothermal activities,primitive uranium source body and targeting uranium deposit in the south of Zhuguang pluton,the types of uranium mineralization,occurrence space and the factors of ore-controlling were summarized in the paper.Meanwhile,based on study of previous scholars and further analysis,the prospecting potential of uranium and prospecting directions were proposed as follows:(1)The deep and peripheral areas of Mianhuakeng,Shulouqiu and Shuishi deposits are the most profitable and key sectors for in the future;(2)The recently discovered advantageous sectors of in the depth of Tangwan deposit,and the deposits of Qiling and Huangshaqiao can be further explored and drilled for verification;(3)Comparing the mineralization geological conditions and prospecting results of the type of external belt in the neighboring area of South China,it is believed that the uranium mineralization of external contact zone subtype in the southern Zhuguang pluton can be used as part of the long-term exploration prospect and large and rich deposits will be explored with highly probability in the future.

关 键 词：铀成矿条件 找矿潜力 矿化特征 控矿因素 诸广岩体南部 

分 类 号：P619.14[天文地球—矿床学]