Extensive dilatancy anisotropy

{
  "id": "MLC-T-OAG-001358",
  "term": "Extensive dilatancy anisotropy",
  "field": "Oil and gas",
  "definition": "A model describing seismic anisotropy caused by the preferred orientation of fluid-filled microcracks or pores within a rock, often induced by stress. This anisotropy affects the propagation of seismic waves, with different velocities depending on the direction of wave travel relative to the crack orientation. It is a mechanism proposed to explain observed shear-wave splitting in the Earth's crust.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/extensive-dilatancy-anisotropy/"
}