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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 55 (1971)

Issue: 9. (September)

First Page: 1701

Last Page: 1701

Title: Sedimentary Previous HitEnvironmentsNext Hit and Occurrence of Major Hydrocarbon Accumulations: ABSTRACT

Author(s): Hunter Yarborough

Article Type: Meeting abstract


Modern concepts concerning the origin of oil and gas are reviewed. Emphasis is stressed on those sedimentary Previous HitenvironmentsNext Hit under which conditions are most favorable for not only the origin but also the accumulation and preservation of major hydrocarbon reserves.

Over 90% of the oil and gas discovered to date has been found in 4 different sedimentary Previous HitenvironmentsNext Hit. The Previous HitdeltaicNext Hit complex, in particular the delta margin environment, is probably the most favorable of these 4 Previous HitenvironmentsTop. Second is the rapidly subsiding carbonate shelf or lagoon where carbonate and/or evaporite sedimentation keeps pace with subsidence. Third is the reef complex associated with the carbonate shelf. Fourth is the turbidite environment which includes all gravity-induced submarine flows, both arenaceous and carbonate.

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Copyright 1997 American Association of Petroleum Geologists