赣南石城县东华山地区锡多金属矿成矿模式、成矿规律及找矿潜力分析  

Metallogenic Model,Metallogenic Regularity and Exploration Prospects of Tin Polymetallic Deposits in Donghuashan Area,Shicheng County,Southern Jiangxi Province

作　　者：郭家松[1] 吴明珠[1] 陈新卫[1] 刘东杰[1] 张斌 GUO Jia-song;WU Ming-zhu;CHEN Xin-wei;LIU Dong-jie;ZHANG Bin(No.2 Geological Party of Jiangxi Nonferrous Metals Geological Exploration Bureau,Ganzhou 341000,China;No.6 Geological Party of Hubei Geological Bureau,Xiaogan 432099,China)

机构地区：[1]江西有色地质勘查二队,江西赣州341000 [2]湖北省地质局第六地质大队,湖北孝感432099

出　　处：《东华理工大学学报（自然科学版）》2020年第4期385-395,共11页Journal of East China University of Technology(Natural Science)

基　　金：中国地质调查局发展研究中心项目(0747-1761SITCN073/15)。

摘　　要：石城县东华山地区位于南岭成矿带东段,素以盛产锡、铌、钽等多金属矿而著称,矿床类型以岩浆热液成因为主,已知的松岭锡矿床、海罗岭铌钽锡矿床、姜坑里铌钽矿床的形成分布受断裂构造和燕山晚期高演化阶段酸性富碱花岗岩联合控制。通过对江西宁都河源石城海罗岭锡、锂多金属矿整装勘查区矿产地质调查的找矿实践和探索,在总结前人工作及研究成果基础上,分析研究了区内地层、构造、岩浆岩与成矿的关系,总结其成矿规律,研究结果进一步明确了区内锡多金属矿存在与同源岩浆侵入演化作用相关的S型酸性富碱花岗岩型及次火山岩型两个成矿亚系列的“一体多型”成矿模式。文章总结了本区锡多金属找矿的程序和方法,通过地、物、化、遥等多元找矿信息,在石城县东华山地区新发现12处具有进一步工作意义的锡多金属矿(化)点,并圈定3处找矿靶区,指出东华山地区深部具有良好的锡多金属矿找矿潜力。Located in the eastern section of the Nanlingmetallogenic belt,the Donghuashan area of Shicheng County is known for its abundant tin,niobium,tantalum and other polymetallic deposits.There deposits are mainly magmatic hydrothermal origin,including Songling tin deposit,Hailuoling niobium tantalum tin deposit and Jiangkengli niobium tantalum deposit.Their formation and distribution are jointly controlled by fault structure and acidic alkali-rich highly fractionated granite in late Yanshanian.The mineral geological survey is practiced and explored in the Heyuan-Hailuoling tin and lithium polymetallic ore integrated exploration area in Jiangxi province.Some relations between the regional strata,structure,magmatic rocks and metallogenesis are analyzed,and the metallogenic regularity is summarized.The results further suggest the existence of the"integrated and multi-type"metallogenic model including two metallogenic sub-series of S-type acid-alkali rich granite and subvolcanic rock that are related to the homologous magmatic evolution.This article summarizes the procedures and methods of tin-polymetallic prospecting in this area.In Donghuashan area of Shicheng County,twelve tin-polymetallic mineralization occurrences have been found for further investigation,and three prospecting target areas have been delineated,based on the geological,geophysical,geochemical and remote sensing methods.Therefore,we suggest that the deep part of the Donghuashan area has good prospecting potential for tin-polymetallic ore.

关 键 词：成矿规律 成矿模式 找矿潜力 锡多金属矿 东华山 

分 类 号：P612[天文地球—矿床学]