Rock Fabric definition

Rock Fabric
Rock Fabric
"Studies that relate rock fabric to pore-size distribution, and thus to petrophysical properties, are key to quantifying geologic models in numerical terms for input into computer simulators."

Rock Fabric

Spatial arrangement orientation of components in rocks. In igneous rocks the term refers to the shape and relationship of the crystals. They may be

  • euhedral (have crystal faces) or
  • anhedral, or have particular shapes that are aligned or distributed randomly.

    In metamorphic rocks, fabric can be collectively used to denote structure and texture characteristics imposed on the rock during metamorphism. This is particularly useful, as it can denote the lack of consistency in the way the rock structure and texture have been used.

    In sedimentary rock, grain size and layering can be described by the term fabric.


  • Encyclopedia Britannica Micropedia, ©1984
  • Carbonate Rock Fabric—Petrophysical
  • igneous rock, Britannica
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