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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。
1) INTRODUCTION The interpretation of the observations of the natural current method now assumes that the ore body is in a homogeneous, isotropic medium. In fact, the inhomogeneity and anisotropy of the surrounding rock play a serious role in the potential curve. Therefore, the interpretation of the results should be corrected accordingly. Here, we only study the influence of the simplest homogeneous anisotropic horizontal rock formation on the curve of natural electric field potentials, and propose the anisotropic correction that should be made when calculating the depth of ore body from the natural potential curve by the ordinary method.