Changes

==Classification philosophy==

==Classification philosophy==

Most petroleum geologists classify traps according to the scheme proposed by Levorsen.<ref>Leverson, A.I., 1954, Geology of Petroleum: San Francisco, W.H. Freeman and Co., 703 p.</ref> Levorsen’s scheme breaks traps into three basic types: structural, stratigraphic, and combination. The trap classification scheme proposed here uses Levorsen’s scheme as a foundation and adds new trap types discovered since 1954. The proposed scheme attempts to formalize the schemes of Levorsen and others (Rittenhouse, 1972<ref>Rittenhouse, G., 1972, [http://archives.datapages.com/data/specpubs/fieldst4/data/a010/a010/0001/0000/0014.htm Stratigraphic trap classification], in R.E. King, ed., Stratigraphic Oil and Gas Fields: AAPG Memoir 16, p. 14–28.</ref>; North, 1985<ref>North, F.K., 1985, Petroleum Geology: Boston, Allen and Unwin, 607 p.</ref>; Melton and Bertram, 1992<ref>Milton, N.J., and G.T. Bertram, 1992, [http://archives.datapages.com/data/bulletns/1992-93/data/pg/0076/0007/0000/0983.htm Trap styles: a new classification based on sealing surfaces]: AAPG Bulletin, vol. 76, p. 983–999.</ref>; and Biddle and Weilchowsky, 1994<ref>Biddle, K.T., and C.C. Weilchowsky, 1994, Hydrocarbon traps, in L.B. Magoon and W.G. Dow, eds., The Petroleum System—from Source to Trap: AAPG Memoir 60, p. 219–235.</ref>) by developing a more systematic and rigorous approach. It uses elements critical to petroleum exploration to group traps into levels. The method is similar to the one used by biologists to classify plants and animals.

Most petroleum geologists classify traps according to the scheme proposed by Levorsen.<ref>Leverson, A.I., 1954, Geology of Petroleum: San Francisco, W.H. Freeman and Co., 703 p.</ref> Levorsen’s scheme breaks traps into three basic types: structural, stratigraphic, and combination. The trap classification scheme proposed here uses Levorsen’s scheme as a foundation and adds new trap types discovered since 1954. The proposed scheme attempts to formalize the schemes of Levorsen and others (Rittenhouse, 1972<ref>Rittenhouse, G., 1972, [http://archives.datapages.com/data/specpubs/fieldst4/data/a010/a010/0001/0000/0014.htm Stratigraphic trap classification], in R.E. King, ed., Stratigraphic Oil and Gas Fields: AAPG Memoir 16, p. 14–28.</ref>; North, 1985<ref>North, F.K., 1985, Petroleum Geology: Boston, Allen and Unwin, 607 p.</ref>; Melton and Bertram, 1992<ref>Milton, N.J., and G.T. Bertram, 1992, [http://archives.datapages.com/data/bulletns/1992-93/data/pg/0076/0007/0000/0983.htm Trap styles: a new classification based on sealing surfaces]: AAPG Bulletin, vol. 76, p. 983–999.</ref>; and Biddle and Weilchowsky, 1994<ref>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>) by developing a more systematic and rigorous approach. It uses elements critical to petroleum exploration to group traps into levels. The method is similar to the one used by biologists to classify plants and animals.

==See also==

==See also==