Geophysics_2 Thanks for your correction
Electrical prospecting based on resistivity difference between different stratum, rocks and minerals, which is usually used to look for water underground; magnetic prospecting based on the differences of naturally magnetic in different rocks and minerals, which is usually used to look for metallic mineral deposit; gravitational prospecting based on Changes in the density of the gravitational field caused by a wide range of differences to the Surroundings, which is usually used to look for large geological structure.
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Geophysics_2 Thanks for your correction
Electrical prospecting is based on the resistivity difference between different stratum, rocks and minerals, which is usually used to look for water underground. Magnetic prospecting is based on the differences of naturally occuring magnetic particles/properties of different rocks and minerals, which is usually used to look for metallic mineral deposit. Gravitational prospecting is based on changes in the density of the gravitational field caused by a wide range of differences to the surroundings, which is usually used to look for large geological structure.
I'm sorry, I'm not a geophysicist, but I took a shot at it. Hope this works for you!
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