| 云南剑川-老君山新生代盆地铀矿化特征 |
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| 引用本文： | 李文贤.云南剑川-老君山新生代盆地铀矿化特征[J].铀矿地质,2014(5):276-282. |
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| 作者姓名： | 李文贤 |
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| 作者单位： | 核工业280研究所,四川广汉618300 |
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| 摘 要： | 剑川-老君山新生代盆地是以上三叠统石钟山组为基底,以新近系剑川组为主要盖层的继承性火山断陷盆地。剑川组为一套粗面岩、凝灰岩、火山角砾岩、集块熔岩、凝灰质砂岩、岩屑砂岩等组成的火山沉积岩系。研究发现,剑川-老君山盆地的铀矿化受区域性断裂及火山构造的复合控制。盆地内已发现有凝灰岩型、砂岩型、正长斑岩型、花岗斑岩型、粗面岩型和花岗伟晶岩型等6种类型的铀矿化,具有良好的找矿前景。
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| 关 键 词： | 铀矿化特征 新生代盆地 剑川-老君山 |
Uranium Mineralization Characteristics of Cenozoic Jianchuan Laoj unshan Basin in Yunnan |
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| Institution: | LI Wen- xian (Research Instiute No. 280, CNNC, Guanghan, Sichuan 618300, China) |
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| Abstract: | Jianchuan Laojunshan Cenozoic basin is an inheritance one which lies on the basement of Tri-assic Shizhongshan group and is covered by Neogene Jianchuan group.Jianchuan group is a set of volcanic sedimentary rocks composed by trachyte, tuff, volcanic breccia, agglomerate and lava, tuffaceous sandstone,lithic sandstone.Uranium mineralization was found in six types rocks,Tuff,sandstone,sy-enite porphyry,granite porphyry,trachyte and granitic pegmatite in the basin.Studies shew that Jian-chuan basin is with good exploration potential.Due to the combined effects of regional faults,volcanic activity and volcanic structure. |
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| Keywords: | characteristics of uranium mineralization Cenozoic basins Jianchuan Laojunshan |
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