江西会昌锡坑迳矿田地质特征及成矿规律分析  

Geological Characteristics and Metallogenic Regularity of Xikengjing Ore Deposits in Huichang,Jiangxi Province

作　　者：彭琳琳[1,2] 陈伟[2] 卢国安 曾德华[2] PENG Lin-lin;CHEN Wei;LU Guo-an;ZENG De-hua(School of Earth Sciences and Engineering, Nanjing University,Nanjing 210000, China;South Jiangxi Geological Surveying Party, Jiangxi Bureau of Geological and Mineral Resources, Ganzhou 341000, China)

机构地区：[1]南京大学地球科学与工程学院,江苏南京210000 [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3期201-213,共13页Journal of East China University of Technology(Natural Science)

基　　金：国家重点研发计划“深地资源勘查开采”专项项目(2016YFC0600208-5);中国地质调查局项目(121201004000160901-14,121201004000160901-13)。

摘　　要：锡坑迳矿田位于武夷山成矿带南段,近年来矿田内锡矿找矿有较大突破,已发现岩背、淘锡坝、凤凰岽、苦竹岽、矿背、曲水坑等大中型锡矿床。在系统的野外实地调查基础上,总结了锡矿矿床地质特征,分析了成矿规律及矿床成因。矿田内锡矿床围绕密坑山破火山构造的内外带,具“多位一体”特征,不同方向断裂带与火山通道复合控矿,燕山晚期岩体与火山岩接触带是找矿有利部位,尤其是缓倾、内凹、复杂的接触面部位。土壤地球化学表明Sn、Cu、Ag、F异常对寻找隐伏或半隐伏矿床有较好的指示意义。Xikengjing ore field is located in the southern section of Wuyishan metallogenic belt.In recent years,large and medium-sized tin deposits have been founded in the orefield,such asYanbei,Taoxiba,Fenghuangdong,Kuzhudong and Qushuikeng.On the basis of systematic field investigation,the geological characteristics of tin deposit are summarized,and that the metallogenic regularity and genesis of tin deposit are analyzed.Tin deposits in ore field which developed around the inner and outer belt of the Mikengshan broken volcanic structure,has the feature of"multiple integration".Tin deposits are controlled by the combination of different direction fault zone and volcanic passage,and that the contact zone between late yanshanian rock mass and volcanic rock is a favorable place for ore exploration,especially,the gently indined,concave,and complex contact areas.The Sn,Cu,Ag and F anomalies in soil geochemistry are good indicators for the search of concealed or semi-concealed tin deposits.

关 键 词：锡矿 矿床地质特征 成矿规律 多位一体 锡坑迳矿田 

分 类 号：P612[天文地球—矿床学]