| 新疆萨瓦布其地区侏罗系沉积特征与铀成矿 |
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| 引用本文： | 刘章月,董文明,秦明宽,陈晓林.新疆萨瓦布其地区侏罗系沉积特征与铀成矿[J].国外铀金地质,2008(2):73-78. |
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| 作者姓名： | 刘章月 董文明 秦明宽 陈晓林 |
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| 作者单位： | 核工业北京地质研究院,北京100029 |
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| 摘 要： | 萨瓦布其铀矿床为经构造抬升破坏残留的古矿，矿体产状陡立，品位高。它主要有两种成因类型，即层间氧化带砂岩型与后生煤岩型，前者为主要类型。通过对萨瓦布其地区侏罗系沉积特征的研究，识别出4种沉积相，划分出7个沉积旋回，指出砂岩型铀矿化主要产于辫状河三角洲相砂体中，并对其成因进行了初步探讨。
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| 关 键 词： | 萨瓦布其地区 构造抬升 层间氧化带 沉积旋回 辫状河三角洲相 |
Relationship between Jurassic sedimentary characteristics and uranium metallogenesis in Sawabuqi area,Xinjiang |
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| Authors: | LIU Zhang-yue DONG Wen-ming QIN Ming-kuan CHEN Xiao-lin |
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| Institution: | (Beijing Research Institute of Uranium Geology, Beijing 100029, China) |
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| Abstract: | Sawabuqi uranium deposit is a conserved palaeo-deposit which is destroyed by tectonic uplift. The ore bodies occur steeply and are highly-graded. Two uranium ore formation types of interlayer oxidation zone sandstone-type and epigenetic coal-type are found in Sawabuqi area, the former is dominant. Based on the study of Jurassic sedimentary characteristics in Sawabuqi area, it is recognized that there are 4 categories of sedimentary facies here and 7 sedimentary cycles are divided. Consequently, it is pointed out that the sandstone-type uranium mineralization mainly occurs in the sand bodies of braided delta facies, and the causes of uranium metallogenesis are discussed preliminarily. |
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| Keywords: | Sawabuqi area tectonic uplift interlayer oxidation zone sedimentary cycles braided delta facies |
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