Geophysical exploration | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-05-02

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Exploration_geophysics


00:01:08 1 Geophysical methods
00:02:34 2 Uses
00:03:32 2.1 Mineral exploration
00:07:08 2.2 Hydrocarbon exploration
00:09:25 2.3 Civil engineering
00:09:34 2.3.1 Ground penetrating radar
00:10:09 2.3.2 Spectral-Analysis-of-Surface-Waves
00:11:35 2.3.2.1 Full waveform inversion
00:13:04 2.3.2.2 Other techniques
00:14:08 2.4 Archaeology
00:14:51 2.5 Forensics
00:15:05 2.6 Unexploded ordnance detection
00:15:23 3 See also



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SUMMARY
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Exploration geophysics is an applied branch of geophysics and economic geology, which uses physical methods, such as seismic, gravitational, magnetic, electrical and electromagnetic at the surface of the Earth to measure the physical properties of the subsurface, along with the anomalies in those properties. It is most often used to detect or infer the presence and position of economically useful geological deposits, such as ore minerals; fossil fuels and other hydrocarbons; geothermal reservoirs; and groundwater reservoirs.
Exploration geophysics can be used to directly detect the target style of mineralization, via measuring its physical properties directly. For example, one may measure the density contrasts between the dense iron ore and the lighter silicate host rock, or one may measure the electrical conductivity contrast between conductive sulfide minerals and the resistive silicate host rock.