内蒙古东胜砂岩型铀矿后生成矿与油气关系
Some show of ore in Dongsheng sandstone-type uranium deposit and prospecting signifeance in Ordos basin, Inner Mongolia
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摘要: 发育于内蒙古鄂尔多斯盆地北部中侏罗统直罗组辫状河相杂砂岩体内的砂岩型铀矿,有一系列较为特殊的与放射性铀成矿有直接或间接关系的成矿地质现象:绿色化蚀变带、漂白退色化带、二次胶结钙化砂岩团块及钙化砂岩断续层与“钙化木”后生蚀变现象;在与铀矿化和与油气的关系认识上存在一定分歧.初步分析了它们的形成、成因及与铀成矿的关系及其找矿意义.Abstract: In the North Ordos basin the sandstone-type uranium deposits developing in the system of sandstone beds of sedimentary facies of braided river course in Midde Jurassic Series,at the same time it happens some show of ore:the alteration zone of chloritization,bleaching decoloration and carbonation of epigenetic alteration,which show of ore are immediate and indirect for uranium mineralizing process.In this area are understanding differences uranium mineralizating relation between to those alteration.This paper preliminary analyse these show of ore,the formation,the genesis,relationship between the uranium mineralization and prospecting signifeance.
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Key words:
- show of ore /
- uranium mineralizing process /
- sandstone-type uranium deposis /
- Dongsheng
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杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002.
丁万烈.绿色蚀变带的地球化学性质及其找矿意义探讨[J].铀矿地质,2003,19(5):277-282.
朱西养,王云亮,王志畅,等.东胜砂岩型铀矿微量元素地球化学特征初探[J].地质地球化学,2003,31(2):39-44.
孙粉锦,许化政,陈孟晋.鄂尔多斯深盆气[J].现代地质,2001.15(3):309-314.
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