| 康滇地轴铀矿物年龄的地质意义 |
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| 引用本文： | 胥德恩.康滇地轴铀矿物年龄的地质意义[J].四川地质学报,1992(4). |
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| 作者姓名： | 胥德恩 |
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| 作者单位： | 核工业部280所 |
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| 摘 要： | 康滇地轴沥青铀矿及晶质铀矿脉,生成于晋宁运动之后,集中在澄江期,泥盆纪、印支—燕山三个造陆时期。铀矿化期有相同的气候,都处于地壳拉张减压阶段,并伴随有断块活动及岩浆活动。铀矿物年龄为研究地轴地壳演化,部分铜矿成矿作用的时间及部分岩体生成的时间提供了年龄信息。
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| 关 键 词： | 铀矿物年龄 地壳演化 康滇地轴 成矿期 |
GEOLOGICAL SIGNIFICANCE OF THE AGE OF U-BEARING MINERALS ON THE KANGDlAN AXIS |
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| Xu Deen.GEOLOGICAL SIGNIFICANCE OF THE AGE OF U-BEARING MINERALS ON THE KANGDlAN AXIS[J].Acta Geologica Sichuan,1992(4). |
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| Authors: | Xu Deen |
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| Abstract: | Pitchblende and uraninite mineralization on the Kangdian Axis occurred in the post-Jinning, mainly, in the Chengjiang, Devonian, Indosinian-Yanshan Periods. The mineralization occurred under conditions of the same climate and in a tensional tectonic setting in company with block-faulting and magmatism. The ages of the U-bearing minerals provide the crustal evolution, Cu ore-formation and intrusion of magmatic rock masses, in Part, with age information. |
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| Keywords: | age of U-bearing mineral Crustal evolution Kangdian Axis metallogenic epoch |
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