| 北祁连中段北坡铀矿地质特征 |
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| 引用本文： | 魏晋庭,安真昌,安国堡.北祁连中段北坡铀矿地质特征[J].地质找矿论丛,2009,24(2):117-122,151. |
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| 作者姓名： | 魏晋庭 安真昌 安国堡 |
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| 作者单位： | 甘肃省核工业地质局212大队,甘肃,武威,733040 |
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| 摘 要： | 北祁连中段北坡是甘肃西部的一个铀成矿带，下奥陶统火山岩、下志留统条带状砂岩及硅质岩、上泥盆统块状砾岩和含砾砂岩是重要的含铀建造；矿化受断裂和裂隙构造控制，区域性NW向构造岩浆岩带控制着矿带的延展方向，矿体产于多次活动的断裂构造带中；矿化与岩体有密切的时空关系，许多矿点和矿化点围绕岩体分布或产于岩体内部，晚加里东-晚燕山期的火山-次火山中酸性岩浆活动引起和促进了含铀建造中铀的活化、迁移和富集；铀矿化是地层、构造和岩浆活动共同作用的结果，矿化类型属于钠交代热液型。
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| 关 键 词： | 铀成矿带 成矿作用 冷龙岭 北祁连 |
| 收稿时间： | 2008/10/24 0:00:00 |
GEOLOGICAL FEATURES OF URANIUM MINERALIZATION IN THE NORTHERN SLOPE OF THE MIDDLE SECTOR OF NORTH QILIAN MOUNTAINS |
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| WEI Jin-ting,AN Zhen-chang and AN Guo-bao.GEOLOGICAL FEATURES OF URANIUM MINERALIZATION IN THE NORTHERN SLOPE OF THE MIDDLE SECTOR OF NORTH QILIAN MOUNTAINS[J].Contributions to Geology and Mineral Resources Research,2009,24(2):117-122,151. |
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| Authors: | WEI Jin-ting AN Zhen-chang and AN Guo-bao |
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| Institution: | No.212 Team of Geological Bureau of Nuclear Industry in Gansu Province;Wuwei 733040;Gansu;China |
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| Abstract: | The northern slope of the middle sector of North Qilian Mountains is an uranium ore belt in the west Gansu province.Lower Ordovician volcanics,Lower Silurian banded sandstone and siliceous sandstone and Upper Devonian massive conglomerate and pebble-sandstone are the important U-bearing formation.The mineralization is controlled by faults and cracks,extension of the ore belt by the regional NW tectonomagmatic rock belt.Ore bodies occur generally in the multiply active fractural zones.The mineralization is c... |
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| Keywords: | U-ore belt U-metallogeny Lenglongling the North Qilian Mountains |
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