Which geophysical method is used to measure variations in electrical potential...

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Which geophysical method is used to measure variations in electrical potential due to subsurface features?

A. Self-potential

B. GPR

C. Gravity

D. Seismic

Answer: Option A

Self-potential (SP) measures natural electric potentials in the ground.It�s useful in identifying ore bodies, groundwater flow, and geothermal zones.

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