赣北大湖塘矿田特大型钨矿床成矿条件及成矿模式探讨  

Metallogenic conditions and metallogenic model of super-large tungsten deposits in Dahutang ore field of northern Jiangxi

作　　者：左全狮 程雯娟[1] 

机构地区：[1]江西地矿局赣西北大队,江西九江332000

出　　处：《矿产与地质》2015年第2期137-143,167,共8页Mineral Resources and Geology

摘　　要：文章收集了大湖塘矿田成矿信息资料,从成矿物源、成矿动力作用、成矿通道与赋存空间、成矿岩体化学特征、特别事件与成矿偏在性等方面,探讨了大湖塘矿田特大型矿床的形成条件和成矿模式。认为燕山早期多次岩浆侵入这一特别事件造就了大湖塘矿田巨大的成矿空间、丰富的成矿流体、多次聚集成矿;讨论了矿田围岩具有形成特大型矿床的成矿偏在性,得出特大型矿床主要是在燕山早期大规模岩浆活动和成矿大爆发这一特别事件与矿田特殊围岩的耦合机制下形成的。认为原大湖塘矿区具有形成特大型矿床的条件,有可能成为大湖塘矿田内又一个特大型钨多金属矿床。This paper collected data of mineralization of Dahutang ore field,and discussed metallogenic condi-tions and metallogenic model of Dahutang super-large deposits from aspects of mineral sources,metallogenic dynamics,metallogenic channels and occurrence space,chemical characteristic of ore-forming rock body, particular events and metallogenic preferentiality.The author believed that the particular event of early Yans-hanian multiple magma intrusion resulted in gigantic metallogenic space,rich metallogenic fluid and repeated-ly accumulation mineralization in Dahutang ore field.This paper elaborated on the metallogenic preferentiali-ty of wall rocks in the ore field which tended to form super-large deposits.It is concluded that the super-large deposits were mainly formed in the coupling mechanism of large scale magmatic activities in early Yanshanian and the special event of mineralization outbreak as well as the special wall rocks in the ore field.It is believed that the original Dahutang mining area was qualified to form super-large deposits,and it is possible to become another super-large tungsten polymetallic deposit in Dahutang ore field.

关 键 词：特大型钨矿床 成矿条件 成矿偏在性 大湖塘矿田 

分 类 号：P618.67[天文地球—矿床学]