Continental Shelf Sediments
The figure below is representative of a number of crustal cross-sections across the continental shelf of the eastern Atlantic seaboard of North America.
The critical point is the huge thicknesses of Mesozoic and Tertiary sediments, here shown as almost 15 km, but in other cross-sections this can be even thicker. Note that at the bottom of this pile are volcanics and volcanogenic sediments, and evaporites,
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