Geophysical Methods

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Exploration Technique: Geophysical Methods

Exploration Technique Information
Exploration Group: Geophysical Techniques
Exploration Sub Group: Geophysical Techniques
Parent Exploration Technique:
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Geophysical Methods:
Methods used to measure the physical properties of the earth
Other definitions:Wikipedia Reegle


 
Introduction
There are five main types of geophysical methods used for geothermal resource discovery:

  1. Seismic Methods (active and passive)
  2. Electrical Methods
  3. Magnetic Methods
  4. Gravity Methods
  5. Radiometric Methods

Seismic methods dominates oil and gas exploration, and probably accounts for over 80% of exploration dollars spent worldwide on geophysics. Of the remainder, electrical methods probably account for half to two-thirds. Magnetics, gravity and radiometrics split the rest.






 
Field Procedures
Examples of several common geophysical methods.[1]












 
References
  1. USGS. Crustal Geophysics and Geochemistry Science Center [Internet]. 2013. [updated 2013/01/04;cited 2013/11/22]. Available from: http://crustal.usgs.gov/projects/rgb/


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