Changes

A fold trap is formed by syn- or postdepositional processes that deform geological surfaces into a curved or nonplanar arrangement (Biddle and Weilchowsky, 1995).

A fold trap is formed by syn- or postdepositional processes that deform geological surfaces into a curved or nonplanar arrangement (Biddle and Weilchowsky, 1995).

:'''Class:''' Monocline

:'''Class:''' Monocline

:A fold that occurs where strata dip or flex from the horizontal in one direction only and are not a part of a anticline or syncline.<ref name=ch02r11>Rittenhouse, G., 1972, Stratigraphic-trap classification, in King, R., E., ed., Stratigraphic Oil and Gas Fields: AAPG Memoir 16, p. 14–28.</ref> A monocline can form only part of the trap closure and must combine with other elements for closure.

:A fold that occurs where strata dip or flex from the horizontal in one direction only and are not a part of a anticline or syncline.<ref name=ch02r11>Rittenhouse, G., 1972, [http://archives.datapages.com/data/specpubs/fieldst4/data/a010/a010/0001/0000/0014.htm Stratigraphic-trap classification], in King, R., E., ed., Stratigraphic Oil and Gas Fields: AAPG Memoir 16, p. 14–28.</ref> A monocline can form only part of the trap closure and must combine with other elements for closure.

:'''Class:''' Regional nose

:'''Class:''' Regional nose

:A short plunging anticline without closure. A trap where a nose is a trapping element must combine with other elements to have closure.

:A short plunging anticline without closure. A trap where a nose is a trapping element must combine with other elements to have closure.