世界核地质科学2025，Vol.42Issue(1)：86-95,10.DOI:10.3969/j.issn.1672-0636.2025.01.007
赣中坪溪岩体铀成矿条件及找矿方向浅析
Analysis on the uranium mineralization conditions and prospecting direction of Pingxi pluton in central Jiangxi
摘要
Abstract
Pingxi pluton is located in the northern section of the Taoshan-Zhuguang uranium mineralization belt,and a number of uranium mineralization occurrences have been found in the pluton by previous researchers,However,the systematical study were conducted on the uranium metallogenic conditions such as lithology,structure and alteration in the area,and the overall evaluation of uranium resource potential was not completed and no specific suggestions or opinions been put forward in the main mineralization control factors for the uranium exploration.In order to find the direction of next exploration,this paper systematically discussed the uranium mineralization characteristics of the pluton by geological investigation,physical survey and chemical analysis,analyzes the conditions of uranium mineralization and ore-controlling factors.The study concluded that the Pingxi pluton is a multi-stage S-type uranium-producing granite,with strong magmatic-tectonic hydrothermal activity,uranium mineralization is mainly controlled by the NNE-NE oriented fracture,and located at the intersection of different striking of fractures,the ore body is set in the fissures of the secondary fracture,which is often accompanied by multi-phase hydrothermal alteration,the hematitization and silicification is the main prospecting sign.The predicted favorite mineralization sectors are Shuangkeng-Fuzhu section where strong magmatic hydrothermal activity occurred in the early to late Yanshan period,with northeast trending Shankeng-Pingxi and northwest trending Luyuan-Hexi-Fuzhu ore controlling faults which extend stably into the deep with strong hydrothermal alteration such as silicification,hematitiztion and pyritization,and geophysical and geochemical anomalies are developed in the shallow and deep.Therefore there is great metallogenic potential in the deep and peripheral areas.关键词
坪溪岩体/铀矿化特征/成矿条件/控矿因素/找矿方向Key words
Pingxi pluton/uranium mineralization characteristics/metallogenic conditions/ore-controlling factors/prospecting direction分类
地质学引用本文复制引用
周正龙..赣中坪溪岩体铀成矿条件及找矿方向浅析[J].世界核地质科学,2025,42(1):86-95,10.基金项目
中国核工业地质局项目(编号:202110,202331-2)资助 Supported by China Nuclear Geology(No:202110,202331-2) （编号:202110,202331-2）
