Each geologic province recognized by the Margins scientific community is represented. Clearly defined geologic provinces are of manageable size. Powerful forcing occurs from a range of mechanisms in terrestrial and marine realms. The stratigraphic record probably extends well back into the Neogene, as recorded in prograding coastlines and shelf margins. Background environmental data exist for much of the region, although not to the extent found in developed nations.
Anthropogenic influences are minimal, and, where present, are definable.