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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: Depositional Styles from Miocene to Pleistocene in
the North-central Gulf of Mexico:
A Historical Reconstruction
By
Minerals Management Service, U.S. Department of the Interior, New Orleans, Louisiana
During the past two years, Minerals Management Service, U. S. Department of the Interior, has classified the reservoir sands from the approximately 1,100 fields across the entire northern Gulf of Mexico into groups of genetically related plays defined by production, chronostratigraphy, lithostratigraphy, and structure. Sands within each of the 12 chronozones from lower Miocene to upper Pleistocene were classified as transgressive, aggradational, progradational, or deep-sea fan facies. Proved reserves plays, hydrocarbon extents, and facies sand limits were mapped for each chronozone.
Dramatic changes in depositional styles
from the Miocene through the Pliocene are
observed in the north-central Gulf of
Mexico as the ancestral Mississippi River
delta moved both basinward and eastward
across offshore Louisiana. The depocenter
shifted back to the west and significantly
basinward during the Pleistocene. Useful
hydrocarbon exploration and development
tools developed as a result of this study will
be presented.
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