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NARROW
Format
Article Type
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Publisher
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Atlantic Ocean
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North Atlantic
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Gulf of Mexico
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Atwater Valley (11)
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De Soto Canyon (5)
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Mississippi Canyon (8)
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Green Canyon (2)
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Walker Ridge (1)
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commodities
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oil and gas fields (4)
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petroleum
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natural gas (1)
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fossils
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Invertebrata
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Protista
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Foraminifera (1)
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geologic age
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Cenozoic
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Quaternary
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upper Precambrian
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minerals
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halides
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chlorides
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halite (1)
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Primary terms
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Atlantic Ocean
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North Atlantic
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Gulf of Mexico
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Atwater Valley (11)
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De Soto Canyon (5)
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Mississippi Canyon (8)
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-
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Cenozoic
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Quaternary
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Pleistocene (2)
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Tertiary
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Neogene
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data processing (1)
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deformation (1)
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faults (2)
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folds (3)
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geophysical methods (8)
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heat flow (1)
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Invertebrata
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Protista
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Foraminifera (1)
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Mesozoic
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Cretaceous
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Lower Cretaceous
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oil and gas fields (4)
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petroleum
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natural gas (1)
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Precambrian
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upper Precambrian
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sedimentary rocks
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chemically precipitated rocks
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evaporites
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salt (2)
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clastic rocks
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sandstone (2)
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shale (1)
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sedimentary structures
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biogenic structures
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microbial mats (1)
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sedimentation (2)
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tectonics
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salt tectonics (8)
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rock formations
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Louann Salt (2)
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sedimentary rocks
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sedimentary rocks
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chemically precipitated rocks
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evaporites
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salt (2)
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clastic rocks
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sandstone (2)
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shale (1)
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sedimentary structures
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channels (1)
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sedimentary structures
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biogenic structures
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microbial mats (1)
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Atwater Valley
Inhabitation of bathyal hydrocarbon seeps by early-branching benthic foraminifera: Implications for Neo-Proterozoic ecosystem functioning Open Access
Subsurface expression of a salt weld, Gulf of Mexico Available to Purchase
Three-dimensional petroleum systems modeling of the Mensa and Thunder Horse intraslope basins, northern deep-water Gulf of Mexico: A case study Available to Purchase
Geometry and kinematics of Neogene allochthonous salt systems in the Mississippi Canyon, Atwater Valley, western Lloyd Ridge, and western DeSoto Canyon protraction areas, northern deep-water Gulf of Mexico Available to Purchase
Regional structural setting and evolution of the Mississippi Canyon, Atwater Valley, western Lloyd Ridge, and western DeSoto Canyon protraction areas, northern deep-water Gulf of Mexico Available to Purchase
Petroleum geology of the Mississippi Canyon, Atwater Valley, western DeSoto Canyon, and western Lloyd Ridge protraction areas, northern deep-water Gulf of Mexico: Traps, reservoirs, and tectono-stratigraphic evolution Available to Purchase
Atlas of fields and discoveries, central Mississippi Canyon, Atwater Valley, northwestern Lloyd Ridge, and western DeSoto Canyon protraction areas, northern deep-water Gulf of Mexico Available to Purchase
Petroleum Geology of the Mississippi Canyon, Atwater Valley, Western Desoto Canyon, and Western Lloyd Areas, Northern Deep Gulf of Mexico: Traps, Reservoirs, and Their Timing Available to Purchase
Abstract The petroleum geology of the Mississippi Canyon, Atwater Valley, western DeSoto and western Lloyd Ridge protraction areas, offshore northern Gulf of Mexico, is controlled by the interaction of salt tectonics and high sedimentation rate during the Neogene, and has resulted resulting in a complex distribution of reservoirs and traps. Seventy-eight fields/discoveries are evaluated and comprise structures with four-way closures (18), three-way closures (46), and stratigraphic traps (14). Three of these discoveries are in Upper Jurassic eolian reservoirs, the remainder are in Neogene deep-water reservoirs. The tectonic-stratigraphic evolution of the area is analyzed at eleven discrete intervals between 24 Ma and Present. The analyses show how the allochthonous salt systems evolved over time, and their effect on sedimentation patterns and sub-basin evolution. The study area includes some of the largest fields in the northern deep Gulf of Mexico. Thunder Horse produces from an anticlinal (turtle) structure that developed with a basement-controlled allochthonous system. The greater Mars-Ursa sub-basin has nine fields with > 1.5 BBBOE EUR, including Mars, Ursa and Princess, that developed with a counterregional allochthonous salt system. The remaining fields have considerably smaller reserves, which are controlled by the area within closure and number of reservoir intervals. Many of the smaller fields are produced from one well subsea tiebacks. Most of fields in the study area are contained within sheet-like or wedge-shaped stratigraphic intervals and have four-way or three-way trapping configurations. These findings reflect the profound effect that mobile salt has had on the petroleum geology of the region.