Changes

! Regime || Class || Subclass || Style

! Regime || Class || Subclass || Style

|-

|-

| rowspan = 12 | ''Fracture trap''; Lateral boundaries of the trap are provided by change from fractured reservoir to unfractured or less fractured rock or by change from open, permeable fractures to cement-filled or narrow-aperture, low-permeability fractures. || rowspan = 4 | ''Extension fracture trap''; Dominant reservoir fractures are extension fractures. || rowspan = 2 | ''Parallel fractures''; Open fractures in a fractured reservoir, predominantly unidirectional in both strike and dip. || ''Mineralized fracture''; Partially or totally mineralized by postfracture cements, typically calcite, gypsum, or silica.

| rowspan = 12 | ''Fracture trap''; Lateral boundaries of the trap are provided by change from fractured reservoir to unfractured or less fractured rock or by change from open, permeable fractures to cement-filled or narrow-aperture, low-permeability fractures. || rowspan = 4 | ''Extension fracture trap''; Dominant reservoir fractures are extension fractures. || rowspan = 2 | ''Parallel fractures''; Open fractures in a fractured reservoir, predominantly unidirectional in both strike and dip. || ''Mineralized fracture''; Partially or totally mineralized by postfracture cements, typically calcite, [[gypsum]], or silica.

|-

|-

| ''Nonmineralized fracture''; Contains no postfracture cements or minerals.

| ''Nonmineralized fracture''; Contains no postfracture cements or minerals.

[[Category:Traps, trap types, and the petroleum system]]  

[[Category:Traps, trap types, and the petroleum system]]  

[[Category:Classification of exploration traps]]

[[Category:Classification of exploration traps]]