|
|||||
|
|
| 浅评下庄铀矿田矿床地质特征 | |
| 引用本文： | 王晓娜,阮昆,许谱林,王志,邵上,郭新文,龙自强.浅评下庄铀矿田矿床地质特征[J].吉林地质,2014(3):27-30. |
| 作者姓名： | 王晓娜 阮昆 许谱林 王志 邵上 郭新文 龙自强 |
| 作者单位： | 1. 广东省核工业地质局二九三大队,广东广州,510800 2. 核工业290研究所,广东韶关,512026 3. 核工业270研究所,江西南昌,330200 |
| 摘 要： | 下庄铀矿田具轻稀土元素富集,轻稀土分馏强烈,重稀土分馏作用微弱的特点,但矿石LREE/HREE比值小于围岩,比围岩具更为明显的负铕异常。H、O同位素组成显示矿前期和成矿期的富成矿流体是由两部分组成:主要的是沿伸展构造上升的地幔流体、次要的是基性岩浆分异演化形成的流体;成矿后期的流体主要由大气降水组成。流体中的C主要来源于中新生代与区域深大断裂有关的幔源脱气作用,同时伴有壳源有机碳的来源。流体包裹体的均一温度从成矿早期—成矿期—成矿后期逐渐降低,但不同矿体、不同成矿期的流体盐度相差不大,均比较低。 |
| 关 键 词： | 稀土元素 稳定同位素 流体包裹体 下庄铀矿田 |
A brief analysis of geological features of Xiazhuang uranium ore ifeld |
|
| WANG Xiao-na,RUAN Kun,XU Pu-lin,WANG Zhi,SHAO Shang,GUO Xin-wen,LONG Zi-qiang.A brief analysis of geological features of Xiazhuang uranium ore ifeld[J].Jilin Geology,2014(3):27-30. | |
| Authors: | WANG Xiao-na RUAN Kun XU Pu-lin WANG Zhi SHAO Shang GUO Xin-wen LONG Zi-qiang |
| Institution: | WANG Xiao-na, RUAN Kun, XU Pu-lin, WANG Zhi, SHAO Shang, GUO Xin-wen, LONG Zi-qiang( 1. No.293 Geologic Brigade, Guangdong Geologic Bureau of Nuclear Industry, Guangzhou 510800, Guangdong, China; 2. No.290 Institute, CNNC, Shaoguan 512026, Guangdong, China; 3.No.270 Institute, CNNC, Nanchang 330200, Jiangxi, China) |
| Abstract: | The features of Xiazhuang uranium ore field： light REE enrichment and fractionation strong, heavy REE fractionation weak, but the LREE/HREE ratio is less than the surrounding rock, and has more obvious negative europium anomalies than surrounding rock. H, O isotopic composition show rich ore-forming lfuid, pre and metallogenic epoch, is composed of two parts：the main is mantle lfuid along the extensional tectonic rising, secondary lfuid is formed maifc magmatic differentiation evolution;Fluid later stage mainly is composed of meteoric water. The carbon in the lfuid mainly comes from the Mesozoic Cenozoic mantle degassing related with the regional deep fault, meanwhile with crust derived organic carbon source. Homogenization temperature of fluid inclusions gradually decreased from early metallogenic metallogenic period-metallogenic stage-late metallogenic stage, but the lfuid salinity of different ore bodies and different ore-forming stage, has little difference. |
| Keywords: | rare earth element stable isotope lfuid inclusion Xiazhuang uranium ore ifeld |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |