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Channel-levee systems linked to shelf-edge delta, Gulf of Mexico Regional Project

VSA Author: Zoltan Sylvester
Organization: Shell
Scenes: 7
Interpretations: 1
Date Created: 2010-05-24

This is a shaded relief image of the top surface of shelf-edge delta and two related channel-levee systems. Colors draped over the topography represent time thickness (two-way traveltime) between the top and the base of the system. Seismic data courtesy of CGGVeritas. Image presented at the "Frontiers of Seismic Geomorphology" showcase held at the Geological Society, London, June, 2010. For more details on this system, see the following paper: Sylvester, Z., Deptuck, M., Prather, B., Pirmez, C., O'Byrne, C. (accepted), Seismic Stratigraphy of a Shelf-Edge Delta and Linked Submarine Channels in the NE Gulf of Mexico. In: Prather, B. et al. (eds.), Application of Seismic Geomorphology Principles to Continental Slope and Base-of-Slope Systems: Case Studies from Seafloor and Near-Seafloor Analogues, SEPM Special Publication.



Scenes related to this Regional Project

Channel-levee system and shelf-edge delta Scene

VSA Author: Zoltan Sylvester
Organization: Shell
Interpretations: 0
Date Created: 2010-05-24

This perspective view shows the top surface a channel-levee system(see regional project), draped with thickness (red=thick, blue = thin). Note the slope gullies sourced by the youngest delta lobe (upper left corner of the image). Image presented at the "Frontiers of Seismic Geomorphology" showcase held at the Geological Society, London, June, 2010.

Detail of basal surface of two slope channels Scene

VSA Author: Zoltan Sylvester
Organization: Shell
Interpretations: 0
Date Created: 2010-05-24

This is a 3D view of the basal surface of two slope channel-levee systems (see parent regional project), draped with seismic amplitude (red = high amplitude, blue = low amplitude). The channel to the right widens as it enters a slide scar. Seismic data is courtesy of CGGVeritas. Image presented at the "Frontiers of Seismic Geomorphology" showcase held at the Geological Society, London...

Detail of basal surface of two slope channels, with cross sections of the levees Scene

VSA Author: Zoltan Sylvester
Organization: Shell
Interpretations: 0
Date Created: 2010-05-24

This is a 3D view of the basal surface of two slope channel-levee systems (see parent regional project), draped with seismic amplitude (red = high amplitude, blue = low amplitude). The channel to the right widens as it enters a slide scar. Thicker levees develop in this area. Seismic data is courtesy of CGGVeritas. Image presented at the "Frontiers of Seismic Geomorphology" showcase h...

Dip map showing incision by slope channels Scene

VSA Author: Zoltan Sylvester
Organization: Shell
Interpretations: 0
Date Created: 2010-05-24

The seismic horizon shown here is the basal surface of the delta-to-slope system shown in the parent regional project. The dip display highlights the variable depth of incision by the two slope channels, a variability driven by the pre-existing slope morphology. Seismic data is courtesy of CGGVeritas. Image presented at the "Frontiers of Seismic Geomorphology" showcase held at the Geo...

Morphology and amplitude map of basal erosional surface underlying two slope channels Scene

VSA Author: Zoltan Sylvester
Organization: Shell
Interpretations: 0
Date Created: 2010-05-25

This seismic horizon is the basal surface of a delta-to-slope system (see parent regional project). It is draped with seismic amplitude extracted along the horizon (red = high amplitude, blue = low amplitude). Seismic data is courtesy of CGGVeritas. Image presented at the "Frontiers of Seismic Geomorphology" showcase held at the Geological Society, London, June, 2010.

Morphology and amplitude map of basal erosional surface underlying two slope channels, with top surface of channel fill added Scene

VSA Author: Zoltan Sylvester
Organization: Shell
Interpretations: 0
Date Created: 2010-05-25

This seismic horizon is the basal surface of a delta-to-slope system (see parent regional project). It is draped with seismic amplitude extracted along the horizon (red = high amplitude, blue = low amplitude). The image also shows the top surface of the youngest channel fill in the channel on the left. Seismic data is courtesy of CGGVeritas. Image presented at the "Frontiers of Seismi...

Slope gullies entering rim syncline Scene

VSA Author: Zoltan Sylvester
Organization: Shell
Interpretations: 1
Date Created: 2010-05-24

This is a shaded relief map of a seismic horizon located at the base of a shelf-edge delta and the related slope channels (see parent regional project). Colors represent seismic amplitude (red = high amplitude, blue = low amplitude). The slope gullies are sourced from a shelf edge delta updip and they are dying out as they enter a subtle step on the slope. As flows reaccelerate where ...

Interpretations related to this Regional Project

Channel-levee systems linked to a shelf-edge delta, Gulf of Mexico Interpretation

VSA Author: Zoltan Sylvester
Organization: Shell
Date Created: 2010-05-24

This is a shaded relief image of the top surface of shelf-edge delta and two related channel-levee systems. Colors draped over the topography represent time thickness (two-way traveltime) between the top and the base of the system. Seismic data courtesy of CGGVeritas. For more details on this system, see the following paper: Sylvester, Z., Deptuck, M., Prather, B., Pirmez, C., O'Byrne...



Details:

  • Regional Project Administrator:
    • Zoltan Sylvester
  • VSA Author:
    • Zoltan Sylvester

Geological Interpretation

Sediment Composition
Siliciclastics

Geographic Context

Political Geography
United States of America

Geophysics

Survey Information
3D

Data Presentation
Vertical Scale - Time

Image Type
Horizon/Surface Map