| 各向异性水平岩层对自然电场电位曲线的影响 |
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| 引用本文： | 章冠人.各向异性水平岩层对自然电场电位曲线的影响[J].地球物理学报,1957,6(1):77-85. |
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| 作者姓名： | 章冠人 |
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| 作者单位： | 长春地质勘探学院 |
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| 摘 要： | 1) 引言现在自然电流法观察结果的解释,均假设矿体是处在均匀各向同性的介质中。实际上,围岩的不均匀和各向异性对电位曲线起着严重的崎变,因之,对结果的解释也应该作相应的校正。在这里,我们只研究最简单的均匀各向异性水平岩层对自然电场电位曲线的影响,井提出了用普通的方法从自然电位曲线上求矿体埋深时,应作的各向异性校正。
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| 关 键 词： | 各向异性系数 均匀各向异性 均匀各向同性 自然电场 电阻率 电位曲线 水平岩层 电位剖面 板状矿体 自然电流法 |
INFLUENCE OF ANISOTROPY OF HORIZONTALLY STRATIFIED GROUND ON THE SELF-POTENTIAL CURVE |
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| CHANG KUAN-JEN.INFLUENCE OF ANISOTROPY OF HORIZONTALLY STRATIFIED GROUND ON THE SELF-POTENTIAL CURVE[J].Chinese Journal of Geophysics,1957,6(1):77-85. |
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| Authors: | CHANG KUAN-JEN |
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| Institution: | Chang-Tsung Institute of Geology and Prospering |
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| Abstract: | In this paper, the potential problem of a self-polarized ore-body buried in a horizontally stratified anisotropic medium has been worked out for three different cases, namely, （1） polarized vertical cylinder, （2） polarized vertical plate, （3） uniformly polarized sphere. All calculations involve the assumption that the potential solutions can be obtained by the same procedure as in the case of isotropic medium except for a transformation of coordinates and by taking Pm=（pn pt） as the average resistivity of the anisotropic medium. The result shows in general a diminution of the potential values as the coefficient of anisotropy （λ） increases, and also a broadening of the potential anomaly curve by λ times. It illustrates the fact that with the usual method of quantitative interpretation, the depth of burial of the ore-body should be multiplied by a factor 1/λ to account for the anisotropic correction. |
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