Seismic Facies, Characteristics, and Variations in Channel Evolution, Mississippi Fan (Plio-Pleistocene), Gulf of Mexico

Weimer, Paul

doi:10.1007/978-1-4684-8276-8_18

Cited by 43 publications

(39 citation statements)

References 7 publications

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“…At more than 150 km long and generally w10-15 km wide, the Mississippi Canyon is one of the most prominent features on the continental slope in the northern Gulf of Mexico. The canyon is the most recently active pathway to deliver sediment from the large drainage basin of the Mississippi River to the deep Gulf of Mexico (Weimer, 1991). It cuts across the salt withdrawal mini-basins of the continental slope, indicating its young age.…”

Section: Geologic Settingmentioning

confidence: 99%

A photographic and acoustic transect across two deep-water seafloor mounds, Mississippi Canyon, northern Gulf of Mexico

Hart

Hutchinson

Gardner

et al. 2008

Marine and Petroleum Geology

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a b s t r a c tIn the northern Gulf of Mexico, a series of seafloor mounds lie along the floor of the Mississippi Canyon in Atwater Valley lease blocks 13 and 14. The mounds, one of which was drilled by the Chevron Joint Industry Project on Methane Hydrates in 2005, are interpreted to be vent-related features that may contain significant accumulations of gas hydrate adjacent to gas and fluid migration pathways. The mounds are located w150 km south of Louisiana at w1300 m water depth.. New side-scan sonar data, multibeam bathymetry, and near-bottom photography along a 4 km northwest-southeast transect crossing two of the mounds (labeled D and F) reveal the mounds' detailed morphology and surficial characteristics. Mound D, w250 m in diameter and 7-10 m in height, has exposures of authigenic carbonates and appears to result from a seafloor vent of slow-to-moderate flux. Mound F, which is w400 m in diameter and 10-15 m high, is covered on its southwest flank by extruded mud flows, a characteristic associated with moderate-to-rapid flux. Chemosynthetic communities visible on the bottom photographs are restricted to bacterial mats on both mounds and mussels at Mound D. No indications of surficial gas hydrates are evident on the bottom photographs.Published by Elsevier Ltd.

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Section: Geologic Settingmentioning

confidence: 99%

A photographic and acoustic transect across two deep-water seafloor mounds, Mississippi Canyon, northern Gulf of Mexico

Hart

Hutchinson

Gardner

et al. 2008

Marine and Petroleum Geology

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“…The medium size of this fan is still too large to have sufficient data density as was observed during DSDP Leg 96 (e.g., Bouma et al, 1985aBouma et al, , 1986Stelting et al, 1985) and follow-up studies (e.g., Weimer, 1989Weimer, , 1991contributions in Weimer andLink, 1991 andWeimer et al, 1994). Following the approach used by Mutti and Ricci Lucchi (1 972) and Walker (1 978) a model of the Mississippi Fan was constructed that demonstrates the partial bypassing of sand to the lower fan resulting in a general increase of the sandshale ratio from middle to outer fan.…”

Section: Mississippi Fanmentioning

confidence: 99%

“…However, the above-mentioned observations and the few findings of a direct connection of a thin levee sandstone to the channel fill, suggest more lateral switching than frequent progradation. Bifurcation is not uncommon and occasionally can be very intensive (see also Weimer, 1989Weimer, , 1991 (Fig. 22).…”

Section: Channel-levee-overbank Depositsmentioning

confidence: 99%

Improved recovery from Gulf of Mexico reservoirs. Volume I (of 4): Task 1, conduct research on mud-rich submarine fans. Final report, February 14, 1995--October 13, 1996

Kimbrell¹,

Bassiouni²,

Bourgoyne³

1997

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“…The channel eroded the underlying condensed section when the youngest sequence initiated. The high amplitude and continuous reflection of seafloor represents muddy drape condensed section based on seismic reflection feature of condensed section in Gulf of Mexico (Weimer, 1991) (Fig. 5).…”

Section: Depositional Systems In the Near Seafloor Sequences In Alamimentioning

confidence: 99%

“…Nearly 50 years ago, deepwater turbidites were properly described by Arnold Bouma (1962), who recognized particular fining-up deepwater deposits by investigating outcrop. Twenty years ago, when many oil companies began deepwater exploration and exploitation (Bentley et al, 2000), 2D seismic data was used to characterize the deepwater channelized system (Posamentier et al, 1991;Weimer, 1991). With the advent of 3D seismic data and new seismic interpretation techniques, the advantage of better imaging of depositional systems has overcome the spatial limitation of scattered outcrop observations and individual well interpretations.…”

Section: Introductionmentioning

confidence: 99%

Seismic Geomorphology and Geometric Evolution of a Single Base-of-Slope Deepwater Channel in the near Seafloor of Alaminos Canyon, Northwestern Deep Gulf of Mexico

Jiang

Henriksen

Weimer

2011

Energy Exploration & Exploitation

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The main goal of this article is to investigate the seismic geomorphology and geometric evolution of the single base-of-slope deepwater channel within a depositional sequence in Alaminos Canyon area of northwestern deep Gulf of Mexico. High resolution 3D seismic data was used to characterize the stratigraphic architecture evolution of deepwater deposits within 300 milliseconds interval below the sea floor. The seismic geomorphologic feature of deepwater channel was fast interpreted by combining seismic cross sections and stratal slices rendered by domain transformation. The surface wrapping interpretation results of the deepwater channel indicate that the near seafloor channel evolved from earlier wider and straight channel to later relatively narrow and sinuous channel within a depositional sequence. The channel exhibits vertical aggrading pattern in updip confined setting and changes to appear lateral migrating pattern in downdip unconfined setting through time. The spatial and temporal evolution of this deepwater channel in this study represents the typical evolution of the channel in base-of-slope deepwater setting and can be used as analog to predict and characterize the deepwater hydrocarbon reservoir at exploration depth in this area or other similar settings around the world.

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Seismic Facies, Characteristics, and Variations in Channel Evolution, Mississippi Fan (Plio-Pleistocene), Gulf of Mexico

Cited by 43 publications

References 7 publications

A photographic and acoustic transect across two deep-water seafloor mounds, Mississippi Canyon, northern Gulf of Mexico

A photographic and acoustic transect across two deep-water seafloor mounds, Mississippi Canyon, northern Gulf of Mexico

Improved recovery from Gulf of Mexico reservoirs. Volume I (of 4): Task 1, conduct research on mud-rich submarine fans. Final report, February 14, 1995--October 13, 1996

Seismic Geomorphology and Geometric Evolution of a Single Base-of-Slope Deepwater Channel in the near Seafloor of Alaminos Canyon, Northwestern Deep Gulf of Mexico

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