| 对“磁暴短周期感应场和佘山地区地幔电导率”一文的讨论 |
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| 引用本文： | 陈伯舫.对“磁暴短周期感应场和佘山地区地幔电导率”一文的讨论[J].地球物理学报,1983,26(3):295-298. |
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| 作者姓名： | 陈伯舫 |
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| 作者单位： | 香港大学地理地质系 |
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| 摘 要： | 本文以理论公式证明地磁测深的电磁阻抗不可能在某一“穿透频率”附近发生不连续的突变。利用“穿透频率”的概念定出的佘山地区地幔电导率是不妥的。
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| 关 键 词： | 地幔电导率 磁暴 磁阻抗 感应场 穿透频率 场源 短周期 水平分量 磁偏角 地磁测深 |
| 收稿时间： | 1981-04-30 |
A DISCUSSION ON THE PAPER "SHORT PERIODIC INDUCTION FIELD OF GEOMAGNETIC STORMS ON ZO-SE AND ELECTRICAL CONDUCTIVITY IN THE UPPER MANTLE BENEATH THIS REGION |
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| CHEN PO-FANG.A DISCUSSION ON THE PAPER "SHORT PERIODIC INDUCTION FIELD OF GEOMAGNETIC STORMS ON ZO-SE AND ELECTRICAL CONDUCTIVITY IN THE UPPER MANTLE BENEATH THIS REGION[J].Chinese Journal of Geophysics,1983,26(3):295-298. |
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| Authors: | CHEN PO-FANG |
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| Institution: | Department of Geography &; Geology, University of Hong Kong |
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| Abstract: | The theoretical formula deduced in this paper verifies that magnetotelluric impedance in geomagnetic sounding cannot change abruptly and discontinuously when frequency approaches to a 'penetrating frequency'. Therefore, the concept of 'penetrating frequency', by which the electrical conductivities in the upper mantle beneath Zo-Se region are determined （see the reference, 1]）, is incorrect. |
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