| 费天伟,刘翔,覃金宁,夏泽群,姜必广,梅水泉.湖南汝城三江口铀矿地质特征及成因探讨[J].南华大学学报(自然科学版),2012,26(3):39~46.[FEI Tian-wei1,LIU Xiang1,QIN Jin-ning2,XIA Ze-qun2,JIANG Bi-guang2,MEI Shui-quan2.Geological Characteristics and Genesis of Uranium in Sanjiangkou Orefield,Rucheng City,Hunan Province[J].Journal of University of South China(Science and Technology),2012,26(3):39~46.] |
| 湖南汝城三江口铀矿地质特征及成因探讨 |
| Geological Characteristics and Genesis of Uranium in Sanjiangkou Orefield,Rucheng City,Hunan Province |
| 投稿时间：2012-09-17 |
| DOI： |
| 中文关键词: 三江口矿区 铀矿化 地质特征 铀矿成因 |
| 英文关键词:Sanjiangkou orefield uranium mineralization geologic characteristic uranium genesis |
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| 中文摘要: |
| 三江口矿区位于扬子地台与南华活动带接合部位的华夏褶皱带万洋—诸广断隆区，北东向遂川—热水断裂带与北西向塘湾断裂带的交切夹持部位.本文通过对矿区矿体分布、矿石特征，以及矿化围岩蚀变特征的研究，认为三江口矿区铀成矿受遂川—热水大型走滑断裂控制，成矿作用与早白垩世以来的构造从汇聚向离散转换作用有关.铀矿成因类型属中低温热液型，成矿热液来源主要为大气降水，部分可能来自变质流体或深部碱性流体.提出“犁形”断裂深部变平部位是赋矿的有利部位，是下一步研究和探索的重点. |
| 英文摘要: |
| Sanjingkou orefield is located in the intersecting and clamping part of NE Suichuan-Reshui fold belt and NW Tangwan fold belt,and the part is in the Wanyang-Zhuguang upwarped fault district of Huaxia fold belt.Huaxia fold belt locates in the interface of Yangtze platform and South China active zone.According to the study of orebody distribution,ore character and mineralization wall-rock alterations,this article concludes that the uranic mineralization in Sanjiangkou orefield is controlled by big Suichuan-Reshui Strike slip fault,and the mineralization is related to the structure after early Cretaceous epoch which experienced from converging to dispersing.The uranium genetic type is middle-low temperature jucbrothermal.The main hydrothermal solution of the ore-forming stage was derived from the meteoric water,and some was probably derived from metamorphic fluid or deep alkaline fluid.The part in the deep plough fracture becomes flat.The article proposes the flat part is beneficial for occurrence,and its very important for next studying. |
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