Natural Electrical Potentials That Arise When Soils Freeze.
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
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Samples of sand, kaolin, bentonite, and loam were frozen from the top downward in cylinders 10 to 12 cm high and 7 cm in diameter. During the freezing process electrical potentials of up to 300 mV were measured between platinum electrodes placed near the ends of the samples. The mechanism that gives rise to these potentials and the effect of soil type and fineness, moisture content, and moisture migration are discussed. Author
- Geology, Geochemistry and Mineralogy
- Electricity and Magnetism