| 小回线瞬变电磁测深勘查铝土矿试验 |
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| 引用本文： | 张林.小回线瞬变电磁测深勘查铝土矿试验[J].物探与化探,2007,31(2):124-128. |
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| 作者姓名： | 张林 |
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| 作者单位： | 河南省有色金属地质勘查总院,河南,郑州,450052 |
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| 摘 要： | 铝土矿含矿岩系与其基底灰岩存在明显的电性差异,是开展瞬变电磁测深工作的基本依据.利用小回线瞬变电磁设备在虎村等铝土矿区进行了剖面试验,分析了反演剖面的异常特征,认为高阻异常由铝土矿含矿岩系基底灰岩引起,其上界面与工程控制结果基本一致.
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| 关 键 词： | 铝土矿 小回线 瞬变电磁测深 |
| 文章编号： | 1000-8918（2007）02-0124-05 |
| 收稿时间： | 2006-04-28 |
| 修稿时间： | 2006-04-282006-06-27 |
THE TENTATIVE APPLICATION OF THE LITTLE-LOOP TRANSIENT ELECTROMAGNETIC METHOD TO THE EXPLORATION OF BAUXITE DEPOSITS |
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| ZHANG Lin.THE TENTATIVE APPLICATION OF THE LITTLE-LOOP TRANSIENT ELECTROMAGNETIC METHOD TO THE EXPLORATION OF BAUXITE DEPOSITS[J].Geophysical and Geochemical Exploration,2007,31(2):124-128. |
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| Authors: | ZHANG Lin |
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| Institution: | Henan Provincial Non-ferrous Geology Exploration Institute, Zhengzhou 450052, China |
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| Abstract: | Bauxite and ore-bearing rocks are different obviously from underlying limestone in electrical properties, and this constitutes the basis of applying the transient electromagnetic method to the exploration of bauxite deposits. The little-loop transient electromagnetic equipment was used in the Hucun bauxite deposit and some other deposits. Characteristics of the inversion anomalies were studied. It is shown that the high resistivity is caused by the basement limestone in the bauxite-bearing strata. The predicted interface of high resistivity is identical with the basement limestone interface controlled by drill holes. |
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| Keywords: | bauxite little-loop transient electromagnetic logging |
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