Figure 4
Physiographical map of the west coast of Africa. The channels and original mouths of the rivers between the 30th parallel north and the 20th parallel south continue into the (bottom of the) present-day Atlantic Ocean as far out as 500 to 800 kilometers. These strongly extended rivers tell us that sea levels in at least part of the Atlantic have been much lower than is presently assumed by geologists. A possible explanation for this is that at some point in the past the west side of the African continent was pressed up with enormous force, possibly because the American or Carribean plate was pushed under the African plate, causing the former to sink. The profile of the west coast confirms this. The enormous area in which we find these submerged river channels and mouths indicates the violent nature of this prehistoric catastrophe.
