| 孟公界花岗岩型脉状铀矿床成矿构造研究及找矿预测 |
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| 引用本文： | 方适宜,范立亭,朱康任,舒孝敬,欧阳平宁,肖建军.孟公界花岗岩型脉状铀矿床成矿构造研究及找矿预测[J].铀矿地质,2007,23(3):138-144. |
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| 作者姓名： | 方适宜 范立亭 朱康任 舒孝敬 欧阳平宁 肖建军 |
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| 作者单位： | 核工业230研究所,长沙,410011 |
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| 摘 要： | 笔者运用大陆构造体系分析方法，详细研究了桂北苗儿山矿田孟公界花岗岩型铀矿床的成矿构造特征，初步查明了北北西向矿脉的形成是受区域性北北东向左旋剪切的次级剪应力场控制，成矿前形成的韧性剪切带既是矿液运移的通道，也是矿体赋存的有利空间；剪切作用造成矿脉、脉体在空间上呈雁行排列并向北北西方向侧伏。根据成矿构造预测，该矿床在1号矿脉的深部有较好的找矿前景，2～6号脉矿化地段由西向东逐渐加深，盲矿体应埋藏在较深部位。
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| 关 键 词： | 剪切带 成矿构造 脉状铀矿床 找矿预测 |
| 文章编号： | 1000-0658（2007）03-0138-07 |
| 修稿时间： | 2006-03-16 |
Study on mineralization structures of vein shape granite type uranium deposit and prospecting prognosis in Menggongjie |
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| FANG Shi-yi,FAN Li-ting,ZHU Kang-ren,SHU Xiao-jing,OUYANG Ping-ning,XIAO Jian-jun.Study on mineralization structures of vein shape granite type uranium deposit and prospecting prognosis in Menggongjie[J].Uranium Geology,2007,23(3):138-144. |
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| Authors: | FANG Shi-yi FAN Li-ting ZHU Kang-ren SHU Xiao-jing OUYANG Ping-ning XIAO Jian-jun |
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| Institution: | Research Institute No. 230, CNNC, Changsha 410011, China |
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| Abstract: | With the method of continental structure system, this paper investigates the mineralization structural characters of Menggongjie uranium orefield in Miaoershan deposit in northern Guangxi province. It is found that the NNW ore vein is controlled by the left-lateral shear stress derived from regional NNE stress field. The tenacity shear zone, formed before the mineralization, is both the migration channel of the ore solution and the storring space of the orebody. The ore vein and lode caused by shearing, is in en echelon arrangement and rake on NNW. Based on the forecast on mineralized structure, the orebody should be fourable in the deep of No. 1 ore vein and blind orebody may imbed in the deeper place of No. 2-6 ore veins due to the gradually deepenning from west to east of mineralized segment of the vein. |
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| Keywords: | shear zone mineralization structure vein shape uranium deposit prospecting prognosis |
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