Depth imaging shows salt-like shale features on Scotian slope

Mark B. Gordon, Robert H. Newding, John O'Dowd GX Technology Inc. Houston Paul J. Harvey, Jack MacDonald Nova Scotia Petroleum Directorate Halifax Velocity modeling and prestack depth imaging by GX Technology (GXT) show a previously unrecognized deformation mechanism in the area of our test lines, south-southwest of Sable Island. Shale, not salt, tectonics dominates the deformation of the late Cretaceous and Tertiary section on the upper to mid slope in this area. A layer that resembles an allochthonous salt sheet results in the formation of minibasins1 and structural highs. However, the distinctively lower velocities indicate tha...

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