白面石矿田贯入玄武岩与铀成矿作用研究  

Research on Intruding Basalt and Uranium Mineralization in Baimianshi Ore Field

作　　者：董昕昱 陈欣 陶尔侃 DONG Xinyu;CHEN Xin;TAO Erkan(Research Institute NO.270,CNNC,Nanchang,Jiangxi 330200,China)

机构地区：[1]核工业二七〇研究所,江西南昌330200

出　　处：《铀矿地质》2021年第3期406-411,共6页Uranium Geology

基　　金：江西省赣州市白面石地区铀矿资源调查评价项目(编号:202029-1)资助。

摘　　要：白面石矿田铀矿化与贯入玄武岩有密切的时空关系,但前人往往将贯入玄武岩和第一层玄武岩归为一类进行研究,未单独研究贯入玄武岩与铀成矿的关系。文章在收集前人资料和野外工作的基础上对白面石矿田贯入玄武岩进行分析,认为在矿田内贯入玄武岩为多期次贯入的结果,可为铀成矿提供热源;贯入玄武岩贯入于第一层砂岩所形成的层间滑动带及次级裂隙,是导矿和储矿的有利场所;片理化褪色条带状贯入玄武岩为白面石矿田典型找矿标志。在未来工作中应着重注意白面石盆地内贯入玄武岩密集分布的地段,这些地段是成富矿的有利部位。Uranium mineralization in Baimianshi ore field is closely related to intruding basalt both in space and time.However,previous studies mostly classified the intruding basalt and the first layer basalt as the same type,and did not study their relationship with uranium mineralization alone.Based on the previous data and field work,this paper analyzed the intruding basalt in the Baimianshi ore field.It is considered that the intruding basalt in the ore field is the product of multi-stage and provided heat source for uranium mineralization;the interlayer sliding zone and secondary fracture caused by basalt intrusion into the first layer of sandstone are favorable places for ore migration and storage;schistosity fading banded intruding basalt is an important prospecting indicator for the Baimianshi ore field.In future work,attention should be paid to the intruding basalt which was widely distributed in the Baimianshi basin and was favorable for ore-forming.

关 键 词：白面石矿田 贯入玄武岩 层间破碎带 片理化 

分 类 号：P588.145[天文地球—岩石学] P619.14[天文地球—地质学]