| 内蒙古巴彦塔拉盆地砂岩型铀矿化的蚀变特征 |
| |
| 引用本文： | 祝民强,吴仁贵,余达淦,陈安平,申科峰.内蒙古巴彦塔拉盆地砂岩型铀矿化的蚀变特征[J].铀矿地质,2004,20(4):205-212. |
| |
| 作者姓名： | 祝民强 吴仁贵 余达淦 陈安平 申科峰 |
| |
| 作者单位： | 1. 东华理工学院,江西,抚州,344000
2. 核工业208大队,内蒙古,包头,014010 |
| |
| 摘 要： | 巴彦塔拉盆地砂岩型铀矿床产于下白垩统赛汉塔拉组下段辫状河流相砂岩中。本文通过对含矿主岩沉积特征、矿化和矿床蚀变特征的分析研究 ,认为早期为潜水氧化蚀变成矿 ;晚期为层间氧化 油气还原蚀变成矿 ,即来自蚀源区和天窗补给的含铀、含氧地下水遇沿断裂 (F2 1)上升的含H2 S的油气还原叠加改造成矿
|
| 关 键 词： | 巴彦塔拉盆地 砂岩型铀矿床 蚀变特征 |
| 文章编号： | 1000-0658(2004)04-0205-08 |
| 修稿时间： | 2003年11月3日 |
Alteration characteristics of sandstone-type uranium mineralization in Bayantala basin,Inner Mongolian Autonomous region |
| |
| ZHU Min-qiang ,WU Ren-gui ,YU Da-gan ,CHEN An-ping ,SHEN Ke-feng.Alteration characteristics of sandstone-type uranium mineralization in Bayantala basin,Inner Mongolian Autonomous region[J].Uranium Geology,2004,20(4):205-212. |
| |
| Authors: | ZHU Min-qiang WU Ren-gui YU Da-gan CHEN An-ping SHEN Ke-feng |
| |
| Institution: | ZHU Min-qiang 1,WU Ren-gui 1,YU Da-gan 1,CHEN An-ping 2,SHEN Ke-feng 2 |
| |
| Abstract: | The sandstone-type uranium deposit in Bayantala basin is hosted in braided channel sand body of the Lower member of Saihantala Formation,Lower Cretaceous.On the basis of the research on characteristics of uranium-hosting sediments,and alteration features at the uranium deposit,authors suggest that the early alteration is of phreatic oxidation and the later alteration is originated from interlayer oxidation and reduction by oil and gas,i.e. when the oxygen-and uranium-bearing groundwater coming from the proverance encounters the ascending H 2S gas along F 21 fault,the uranium is reduced by the H 2S and precipitated leading to the uranium ore-formation. |
| |
| Keywords: | Bayantala basin sandstone-type uranium deposit alteration features |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
