Changes

===Pore geometry===

===Pore geometry===

Permeability is a function of the geometry of the pore structure of the porous media. Permeability is controlled in sandstone by grain size, grain orientation, packing arrangement, cementation, clay content, bedding, and grain size distribution and sorting. In carbonates, permeability is a function of the degree of mineral alteration (such as dolomitization), [[porosity]] development, and fractures. [[:file:permeability_fig2.png|Figure 2]] shows the relationship among permeability, sorting, and grain size.

Permeability is a function of the geometry of the pore structure of the porous media. Permeability is controlled in sandstone by grain size, grain orientation, packing arrangement, cementation, clay content, bedding, and grain size distribution and sorting. In carbonates, permeability is a function of the degree of mineral alteration (such as dolomitization), [[porosity]] development, and fractures. [[:file:permeability_fig2.png|Figure 2]] shows the relationship among permeability, [[Core_description#Maturity|sorting]], and grain size.

===Bedding===

===Bedding===