کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5786979 | 1414149 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Transient electric field response to a uniform, magnetically viscous earth excited by a grounded line source
ترجمه فارسی عنوان
پاسخ میدان الکتریکی گذرا به زمین یکنواخت و مغناطیسی غلیظ از یک منبع خطی متروکه هیجان زده شده است
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
A new method is suggested for calculation of transient electric field response to conducting magnetically viscous earth excited by a grounded line source. Calculation algorithms are implemented in the computer program FwLL_MV. Using a uniform, conducting magnetically viscous half-space as an earth model, we have shown that magnetic relaxation affects the TEM response of equatorial and in-line arrays. As in the case of loop arrays, apparent resistivity steadily decreases with time. The higher the half-space resistivity and the shorter the offset, the earlier the voltage and the apparent resistivity begin to decrease as 1/t. Magnetic relaxation and decay of eddy currents are independent processes within the range of resistivities typical of rocks.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Russian Geology and Geophysics - Volume 58, Issue 7, July 2017, Pages 855-863
Journal: Russian Geology and Geophysics - Volume 58, Issue 7, July 2017, Pages 855-863
نویسندگان
E.Yu. Antonov, N.O. Kozhevnikov,