SOUTH ATLANTIC GEOLOGY-2 - Deciphering turbidites on seismic key to understanding basins off Africa, Brazil

This is the second part of an article designed to review some of the key concepts that relate to the geology of deepwater basins in the south central Atlantic Ocean.The first part contained a review of economic ingredients as well as key relevant elements including the rift, continental breakup, and petroleum systems features (OGJ, Mar. 19, 2001, p. 30).The quality of modern seismic data in deep offshore basins along continental margins in the South Atlantic Ocean is impressive.Using 3D seismic data, each sand body in Tertiary sediments may be picked out in detail, though the same is not always true of the Upper Cretaceous as giant Roncador field off Brazil proved.Using extracts of seismi...

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