| 松辽盆地南部协尔苏凹陷构造沉积演化与铀成矿关系 |
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| 引用本文： | 王黎明,刘长明,席海银,田万文,张永保.松辽盆地南部协尔苏凹陷构造沉积演化与铀成矿关系[J].地质与资源,2009,18(4):274-278. |
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| 作者姓名： | 王黎明 刘长明 席海银 田万文 张永保 |
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| 作者单位： | 核工业240研究所, 辽宁 沈阳 110032 |
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| 摘 要： | 论述了协尔苏凹陷富铀基底、含煤岩系形成、泉头组沉积、断裂继承性活动有机流体后生还原铀预富集和层间氧化作用铀叠加成矿5个构造沉积演化过程.结合沉积盖层的沉积特征、砂体的后生蚀变特征和已发现的铀矿（化），阐述了构造沉积演化是研究区地浸砂岩型铀矿（化）形成的重要条件.成矿条件分析表明，研究区具有较好的铀成矿前景.
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| 关 键 词： | 协尔苏凹陷 构造沉积演化 成矿条件分析 铀成矿前景 松辽盆地南部 |
| 收稿时间： | 2009-03-24 |
THE RELATIONSHIP BETWEEN STRUCTURAL-SEDIMENTARY EVOLUTION AND URANIUM MINERALIZATION IN XIERSU DEPRESSION, SOUTHERN SONGLIAO BASIN |
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| WANG Li-ming,LIU Chang-ming,XI Hai-yin,TIAN Wan-wen,ZHANG Yong-bao.THE RELATIONSHIP BETWEEN STRUCTURAL-SEDIMENTARY EVOLUTION AND URANIUM MINERALIZATION IN XIERSU DEPRESSION, SOUTHERN SONGLIAO BASIN[J].Geology and Resources,2009,18(4):274-278. |
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| Authors: | WANG Li-ming LIU Chang-ming XI Hai-yin TIAN Wan-wen ZHANG Yong-bao |
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| Institution: | No. 240 Institute of Nuclear Industry, Shenyang 110032, China |
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| Abstract: | The Xiersu depression experienced five stages of structural-sedimentary evolution,i.e.the forming of basement with rich uranium in Early Cretaceous;the forming of coal-bearing rock series in Early Cretaceous;sedimentation of Quantou formation in Late Cretaceous;uranium pre-concentration caused by organic fluid from faults;and uranium deposition by interlayer oxidation.Combined with the sediment characters of covering strata,epigenetic alteration of sandy bodies and discovered uranium occurrences,it is presented that the structural and sedimentary evolution is an important factor for the mineralization of in-situ leachable sandstone type of uranium.The analysis of geological conditions shows a great prospect for uranium deposit in the studied area. |
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| Keywords: | Xiersu depression structural-sedimentary evolution metallogenic condition uranium metallogenesis Southern Songliao basin |
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