Techniques for determining the structure and properties of permafrost
نویسنده
چکیده
Several methods for predicting the relationship between the velocity and the liquid-waterto-water-ice ratio in permafrost are derived and examined, including a modification of the Voigt average for three materials based on critical porosity. Field seismic techniques for detecting anomalous velocity or attenuation changes are reviewed in view of the unique wave propagation problems encountered in permafrost areas.
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