Exploration geophysics  From Wikipedia, the free encyclopedia
Jump to: navigation, search  Exploration geophysics is the
applied branch of geophysics which uses surface methods to
measure the physical properties of the subsurface Earth, along
with the anomalies in these properties, in order to detect or
infer the presence and position of ore minerals, hydrocarbons,
geothermal reservoirs, groundwater reservoirs, and other
geological structures.  Exploration geophysics is the practical
application of physical methods (such as seismic, gravitational,
magnetic, electrical and electromagnetic) to measure the
physical properties of rocks, and in particular, to detect the
measurable physical differences between rocks that contain ore
deposits or hydrocarbons and those without.  Exploration
geophysics can be used to directly detect the target style of
mineralisation, via measuring its physical properties directly.
For example one may measure the density contrasts between iron
ore and silicate wall rocks, or may measu