Magnetotelluric Sounding of Permafrost

The audio-frequency magnetotelluric method was used to sound a permafrost region in the Mackenzie delta in the Northwest Territories. A simple two-layer model consisting of a high electrical resistivity layer overlying less resistive material gave interpreted depths in agreement with those determine...

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Bibliographic Details
Published in:Science
Main Authors: Koziar, Andrew, Strangway, D. W.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1975
Subjects:
Mackenzie Delta
Northwest Territories
permafrost
Online Access:http://dx.doi.org/10.1126/science.190.4214.566
https://www.science.org/doi/pdf/10.1126/science.190.4214.566
Description
Summary:The audio-frequency magnetotelluric method was used to sound a permafrost region in the Mackenzie delta in the Northwest Territories. A simple two-layer model consisting of a high electrical resistivity layer overlying less resistive material gave interpreted depths in agreement with those determined by drilling. The summer active layer was transparent even at high sounding frequencies.

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