Reduction of gravity data
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Reduction of gravity data

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Introductory Geophysics course, Reduction of Gravity data

Introductory Geophysics course, Reduction of Gravity data

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Reduction of gravity data Presentation Transcript

  • 1. By : Dr Amin Khalil
  • 2. Gravity field depends on :  Mass  Inverse of squared distance
  • 3. Earth’s Radii
  • 4. The use of acceleration due to gravity to study the subsurface it is required to remove any unwanted effects, so that the effects from anomalous bodies are the only factors.
  • 5. • Sea level can be regarded as equipotential surface. •Earth’s surface possesses undulations. •Areas above sea level have less g •Areas below sea level have greater g Thus elevations of the earth’s surface affects g and this effect should be removed.
  • 6. Increase in mass result is increase in g