Isostatic correction

{
  "id": "MLC-T-OAG-002054",
  "term": "Isostatic correction",
  "field": "Oil and gas",
  "definition": "A correction applied to gravity data to account for the gravitational effect of large, low-density crustal blocks, such as mountain roots, that float in the denser mantle below. This adjustment is based on the principle of isostasy, which posits that the Earth's crust maintains a state of gravitational equilibrium. The correction removes long-wavelength variations in the gravity field related to deep compensation masses, isolating anomalies caused by shallower geological structures.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/isostatic-correction/"
}