9 comments on Perhaps this is a quiet week ?
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9 comments on Perhaps this is a quiet week ?
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Anybody know anything about it?
Pressure waves cause differences in electrical conduction in porous rocks if there is a nonconductor like oil or a conductor like water inside it. Think of oil holding apart two grains of relatively conductive rock and when a pressure wave goes through, the rocks touch and conduct electricity. If the pore holds water instead, then the electricity will conduct at all times instead of only when the pressure wave is going through.
It is much more complicated than that, though.