Changes

Each systems tract—highstand, lowstand, and transgressive—has a different trapping potential based on the vertical and lateral distribution of lithofacies deposited within specific depositional environments. White<ref name=ch04r112>White, D., A., 1980, Assessing oil and gas plays in facies-cycles wedges: AAPG Bulletin, vol. 64, p. 1158–1178.</ref> presents an excellent review of trap types within facies-cycle wedges, which are related to transgressive-regressive cycles and can be related most specifically to the transgressive systems tract and the highstand systems tract. In White's classification, [[Well_log_sequence_analysis#Parasequence_stacking_patterns|prograding]] lithofacies of the lowstand systems tract might occur as subunconformity traps or might be mistakenly identified as highstand systems tract deposits. Gravity-flow deposits of slope and basin-floor fan systems are most often placed into the lowstand systems tract because they are deposited basinward of the shelf/slope inflection.

Each systems tract—highstand, lowstand, and transgressive—has a different trapping potential based on the vertical and lateral distribution of lithofacies deposited within specific depositional environments. White<ref name=ch04r112>White, D., A., 1980, Assessing oil and gas plays in facies-cycles wedges: AAPG Bulletin, vol. 64, p. 1158–1178.</ref> presents an excellent review of trap types within facies-cycle wedges, which are related to transgressive-regressive cycles and can be related most specifically to the transgressive systems tract and the highstand systems tract. In White's classification, [[Well_log_sequence_analysis#Parasequence_stacking_patterns|prograding]] lithofacies of the lowstand systems tract might occur as subunconformity traps or might be mistakenly identified as highstand systems tract deposits. Gravity-flow deposits of slope and basin-floor fan systems are most often placed into the lowstand systems tract because they are deposited basinward of the shelf/slope inflection.

White<ref name=ch04r112 /> discusses both siliciclastic and carbonate systems. Sarg<ref name=ch04r84>Sarg, J., F., 1988, Carbonate sequence stratigraphy: SEPM Special Publication 42, p. 155–181.</ref> provides an excellent discussion of carbonate systems. Only siliciclastic systems, similar to those of the Cenozoic of the central and western Gulf of Mexico, are discussed here.

White<ref name=ch04r112 /> discusses both siliciclastic and carbonate systems. Sarg<ref name=ch04r84>Sarg, J., F., 1988, Carbonate sequence stratigraphy: SEPM Special Publication 42, p. 155–181.</ref> provides an excellent discussion of carbonate systems. Only siliciclastic systems, similar to those of the [[Cenozoic]] of the central and western Gulf of Mexico, are discussed here.

==Lowstand systems tract traps==

==Lowstand systems tract traps==