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Subdiscipline of geophysics that is concerned with ocean phenomena. The main techniques and areas of study include heat-flow data, seismic reflection and refraction techniques, geomagnetics, and gravity studies. The principal concepts in marine geophysics are seafloor spreading, continental drift, and plate tectonics.
This entry comes from Encyclopædia Britannica Concise. For the full entry on marine geophysics, visit Britannica.com.
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