Geophysics Category
Geophysics, a major discipline of the Earth sciences and a subdiscipline of physics, is the study of the Earth's subsurface and motions on its surface by the quantitative observation of its physical properties. Geophysical data are used in academics to observe tectonic plate motions, study the internal structure of the Earth, supplement data provided by geologic maps, and to nondestructively observe shallow deposits. In industries, geophysical data are used to analyze potential petroleum reservoirs and mineral deposits, to locate groundwater, and in work on environmental remediation. The theories and techniques of geophysics are employed extensively in the planetary sciences in general. text ref: wikipedia