| 可地浸层间氧化带型砂岩铀矿自然电位异常计算 |
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| 引用本文： | 汤洪志,姚小虹,刘庆成,龚育龄,徐飞,肖劲.可地浸层间氧化带型砂岩铀矿自然电位异常计算[J].物探化探计算技术,2003,25(3):232-236. |
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| 作者姓名： | 汤洪志 姚小虹 刘庆成 龚育龄 徐飞 肖劲 |
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| 作者单位： | 1. 东华理工学院,探测与信息技术系,江西,抚州,344000
2. 抚州市城建局,江西,抚州,344000 |
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| 基金项目： | 中核地质局生产科研项目(2000-2001-2002) |
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| 摘 要： | 理论和实践表明，在可地浸层间氧化带型砂岩型矿床上可观察到明显的自然电位异常。其起因不同于电子导电体形成的氧化还原电场，而在于发生在层间氧化带中一些非平衡现象之间相互影响所产生的混合电位。根据其自然极化原理，建立了等效数学模型，并对几种常见矿体形态的自然电位异常进行了模拟计算，并分析了曲线特征。最后，讨论了自然电位异常地形校正方法，并给出了几种常见地形条件下自然电位模拟曲线。
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| 关 键 词： | 可地浸 层氧化带 砂岩铀矿 自然电场 地形校正 |
| 文章编号： | 1001-1749(2003)03-0232-05 |
| 修稿时间： | 2002年9月2日 |
A MODELING FOR SPONTANEOUS POLARIZATION ABNORMITY OF SANDSTONE URANIUM DEPOSITS IN SITU LEACHABLE INTERLAYERED OXIDATION ZONE |
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| Abstract: | Theory and practice indicates that an evident spontaneous potential abnormity can be observed in sandstone uranium deposits in situ leachable inter layered oxidation zone. The spontaneous potential is one mixed potential caused by the interaction of unbalanced bodies in interlayered oxidation zone, which i s different from oxidation reduction electric field formed by electron conductor . In the paper, we put forward an equivalent mathematic model according to the m echanism of the spontaneous polarization and calculate some spontaneous potenti al abnormities of some kind of constant deposits, then analyze their curve chara cters. Finally, we discuss the methods of topography correction for the spontan eous potential abnormity and present some spontaneous potential simulation curv es in some ordinary topography. |
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| Keywords: | the in situ leachable sandstone uranium deposits i nterlayered oxidation zone spontaneous potantial field topography correction |
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