Permafrost mapping by audiofrequency magnetotellurics

• Published in: Canadian Journal of Earth Sciences
• Main Authors: Koziar, A., Strangway, D. W.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1978
• Subjects: General Earth and Planetary Sciences; Mackenzie Delta; Tuktoyaktuk; permafrost
• Online Access: http://dx.doi.org/10.1139/e78-159; http://www.nrcresearchpress.com/doi/pdf/10.1139/e78-159

The audiofrequency magnetotelluric (AMT) method has been used to study permafrost thickness near Tuktoyaktuk, N.W.T. in the Mackenzie Delta. In the frequency range of 10 Hz–10 kHz the permafrost behaves as a simple resistive layer over a conductive layer. This simple two-layer model can be inverted...