>65 Ma Important note: These geologic province map depicts only features approximately 150 km across and greater due to the fact that the resolution of the maps should be consistent with the resolution of the seismic refraction data. For example, the young uplifted blocks of the Variscan Orogen in Central and Western Europe such as the Rhenish Massif or the Massif Central are not depicted as ‘orogens’ but as part of the ‘extended continental crust’ in the western half of Europe.
|Date||original upload english wikipedia 22 April 2005 by SEWilco|
Derivative works of this file: World geologic provinces North America cropped.png:
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the the official USGS copyright policy.