Changes

  | part    = Traps, trap types, and the petroleum system

  | part    = Traps, trap types, and the petroleum system

  | chapter = Classification of exploration traps

  | chapter = Classification of exploration traps

  | frompg  = 2-1

  | frompg  = 2-23

  | topg    = 2-42

  | topg    = 2-24

  | author  = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster

  | author  = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster

  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch02/ch02.htm

  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch02/ch02.htm

==Classes and definitions==

==Classes and definitions==

There are four classes in the fault trap regime: normal fault, reverse fault, thrust fault, and wrench fault. The outline below shows definitions and examples for the classes and subclasses of these traps or trapping elements.

There are four classes in the fault trap regime: normal fault, reverse fault, thrust fault, and [http://www.glossary.oilfield.slb.com/en/Terms.aspx?LookIn=term%20name&filter=wrench%20fault wrench fault]]. The outline below shows definitions and examples for the classes and subclasses of these traps or trapping elements.

{| class = wikitable

{| class = wikitable

! Regime || Class || Subclass

! Regime || Class || Subclass

|-

|-

| rowspan = 7 | Fault trap; Fault(s) forms part or all of the closure of the trap by sealing the reservoir either laterally and/or from the top (after Biddle and Wielchowsky, 1995).{{citation needed}} || rowspan = 3 | Normal fault trap; One or more form all or part of lateral closure by sealing the reservoir. || Tilted fault block; Block of rock bounded on one or more sides by normal faults. Rotation traps hydrocarbons along edges or in corners.

| rowspan = 7 | Fault trap; Fault(s) forms part or all of the closure of the trap by sealing the reservoir either laterally and/or from the top (after Biddle and Wielchowsky<ref name=Biddle&Wichelsky1994>Biddle, K. T., and C. C. Weilchowsky, 1994, [http://archives.datapages.com/data/specpubs/methodo2/data/a077/a077/0001/0200/0219.htm Hydrocarbon traps], in L. B. Magoon and W. G. Dow, eds., The Petroleum System—from Source to Trap: [http://store.aapg.org/detail.aspx?id=1022 AAPG Memoir 60], p. 219–235.</ref>) || rowspan = 3 | Normal fault trap; One or more form all or part of lateral closure by sealing the reservoir. || Tilted fault block; Block of rock bounded on one or more sides by normal faults. Rotation traps hydrocarbons along edges or in corners.

|-

|-

| Horst; Block of rock bounded on all sides by normal faults.

| Horst; Block of rock bounded on all sides by normal faults.

| colspan = 2 | Reverse fault trap; One or more faults form all or part of the closure by sealing the reservoir.

| colspan = 2 | Reverse fault trap; One or more faults form all or part of the closure by sealing the reservoir.

|-

|-

| rowspan = 2 | Thrust fault trap; Forms all or part of the closure by sealing the reservoir either laterally or from the top or bottom. || Overthrust; Forms all or part of the closure by sealing the reservoir laterally.

| rowspan = 2 | Thrust fault trap; Forms all or part of the closure by sealing the reservoir either laterally or from the top or bottom. || [[Overthrust]]; Forms all or part of the closure by sealing the reservoir laterally.

|-

|-

| Subthrust; Forms all or part of the closure by sealing the reservoir laterally or from the top.

| Subthrust; Forms all or part of the closure by sealing the reservoir laterally or from the top.

|-

|-

|  Wrench fault trap; Forms all or part of the closure by sealing the reservoir laterally or from the top. || Flower structure; Opposing reverse faults diverge upward, forming a fan or flower cross section pattern. Develop along wrench fault zones.

|  Wrench fault trap; Forms all or part of the closure by sealing the reservoir laterally or from the top. || Flower structure; Opposing reverse faults diverge upward, forming a fan or flower [[cross section]] pattern. Develop along wrench fault zones.

|}

|}

! Regime || Class || Subclass || Superfamily || Family || Subfamily || Variety

! Regime || Class || Subclass || Superfamily || Family || Subfamily || Variety

|-

|-

| rowspan = 11 | Fault traps || rowspan = 3 | Normal faults || rowspan = 3 | Tilted fault block || rowspan = 3 | Tectonic; Normal fault, resulting from deformation by tectonic processes, forms all or part of the closure. || rowspan = 3 | Extensional; Fault, resulting from extensional deformation, forms all or part of the closure. || colspan = 2 | Rift basin

| rowspan = 11 | Fault traps || rowspan = 3 | Normal faults || rowspan = 3 | Tilted fault block || rowspan = 3 | Tectonic; Normal fault, resulting from [[deformation]] by tectonic processes, forms all or part of the closure. || rowspan = 3 | Extensional; Fault, resulting from extensional deformation, forms all or part of the closure. || colspan = 2 | Rift basin

|-

|-

| colspan = 2 | Basin and range

| colspan = 2 | Basin and range

* [[Fracture traps]]

* [[Fracture traps]]

* [[Fracture trap regime]]

* [[Fracture trap regime]]

==External links==

==External links==

[[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]]