赣南锡矿类型、成矿规律及找矿远景分析  

Main Types,Metallogenic Regularity and Prospecting Potential of Tin Deposits in Southern Jiangxi Province

作　　者：彭琳琳[1] 李伟[2] 刘翠辉 陈伟[2] 谭友 卢国安 PENG Lin-lin;LI Wei;LIU Cui-hui;CHEN Wei;TAN You;LU Guo-an(No.902 Geological Brigade,Bureau of Geology and Mineral Exploration&Development of Jiangxi Province,Xinyu 338000,China;Geological Survey Team of Gannan,Bureau of Geology and Mineral Exploration&Development of Jiangxi Province,Ganzhou 341000,China)

机构地区：[1]江西省地质矿产勘查开发局九○二地质大队,江西新余338000 [2]江西省地质矿产勘查开发局赣南地质调查大队,江西赣州341000

出　　处：《东华理工大学学报（自然科学版）》2020年第5期463-471,共9页Journal of East China University of Technology(Natural Science)

基　　金：中国地质调查局项目(DD20190166-12,DD20190166-10)。

摘　　要：赣南位于南岭成矿带东段与武夷山成矿带交汇部位,成矿条件优越,锡矿资源丰富。锡矿床类型主要有斑岩型、石英脉型、隐爆层间裂隙带型、破碎带蚀变岩型和矽卡岩型。区内存在两个主要锡矿成矿期:燕山早期(160~150 Ma)成矿爆发期,成矿与中深成花岗岩侵位相关,形成了崇义-大余-上犹(简称“崇余犹”)地区广泛发育的石英脉型锡多金属矿床;燕山晚期(128~120 Ma)成矿集中期,成矿与浅成-超浅成岩浆活动相关,以锡坑迳锡矿田为代表。在成矿规律研究基础上,结合已知矿产及异常分布特征,综合划分了崇余犹、会昌-安远、于都-赣县、石城和三南5大锡矿找矿远景区,尤以崇余犹和锡坑迳矿田最具锡矿找矿潜力。Southern Jiangxi province is located at the intersection part of eastern Nanling metallogenic belt and Wuyishan metallogenic belt, which has superior metallogenic condition and rich mineral resources. Tin deposit types contain porphyry type, quartz vein type, concealed explosive instrastratal fracture zone type, fracture zone alteration rock type and skarn type. The large-scale mineralization events occurred mainly in two period, namely, the early Yanshanian period(160~150 Ma) and the late Yanshanian period(128~120 Ma).The mineralization occurred intensively in the early Yanshanian period, which is related to the plutonic granites, forming the widely developed quartz vein type tin polymetallic deposits, belongnig to the quartz vein type, in Chongyi-Dayu-Shangyou area. The late Yanshanian mineralization is related to the shallow to ultrashallow magmatism, and is represented by the Xikengjing tin ore field. On the basis of the metallogenic regularities, combined with the distribution characteristics of known mineral deposits and mineralization anomalies, southern Jiangxi province features five important tin prospecting areas:Chongyi-Dayu-Shangyou, Huichang-Anyuan, Yudu-Ganxian, Shicheng and Longnan-Dingnan-Quannan. Among them, Chongyi-Dayu-Shangyou and the Xikengjing tin ore field are the most potential for tin ore prospecting.

关 键 词：锡矿 矿床类型 成矿规律 远景区 赣南 

分 类 号：P618.44[天文地球—矿床学]