Aeolotropy

{
  "id": "MLC-T-OAG-000067",
  "term": "Aeolotropy",
  "field": "Oil and gas",
  "definition": "The property of a rock exhibiting different values for a physical property when measured in different directions; an alternative spelling for anisotropy. This directional dependence, seen in properties like permeability, seismic velocity, and electrical resistivity, results from oriented grains, microfractures, or fine-scale bedding. In contrast to isotropy, where properties are uniform, aeolotropy in shales causes resistivity measured parallel to bedding to be lower than resistivity measured perpendicular to it.",
  "subject": "Geology",
  "url": "https://mlchart.com/terminology/oil-and-gas/aeolotropy/"
}