Search > Namibia VERNOB-03 Survey > Namibia VERNOB-03 - another profile from the continental margin Regional Project > Shallow section with faulted clinoforms - offshore Namibia Scene


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faulted clinoforms - offshore Namibia Interpretation

VSA Author: Rob Butler
Date Created: 2010-04-22

The stratal geometries on the shelf show progradational and aggradational geometry together with subtle slump scars. In 3D these mega forms probably trace lobes - hence the complex lap relationships. The stratal surfaces in the clinoforms (picked in blue) are cut by an array of moderately-dipping (once the excessive vertical exaggeration is removed) normal faults that do not continue to depth. These probably represent incipient failure of the stratal package upon a muddy section. These faults - which involve c. 6-700 ms (= c. 1 km) of strata may also influence the failure on the foresets.





Details:

  • Interpretation Administrator:
    • Rob Butler
  • VSA Author:
    • Rob Butler

Geological Interpretation

Deformation Structures
Planar, Listric

Seismic Stratigraphy
Erosional truncation, Toplap, Downlap

Depositional Environment
Shelf

Sediment Composition
Siliciclastics

Geological Context

Plate Settings and Margins
Passive

Tectonics
Gravity

Basin Setting
Passive Margin

Geographic Context

Physical Geography
Shelf-Slopes

Political Geography
Namibia, Republic of

Geophysics

Survey Information
Marine, Multichannel 2D, ≤10, Migrated

Data Presentation
Vertical Scale - Time

Image Type
Vertical Profile