This presentation shows graphically the Proterozoic and Phanerozoic geologic history of the Southwestern US. The explanation shows the graphics and patterns used throughout. The presentation begins with a text file that provides a brief narrative of the geologic history. You can link to the graphics from the text; use the back_function on your browser to retun to the text from the graphics. Alternately, you can navigate through geologic time from graphic to graphic without returning to the text each time. Note that on most graphics pages you have to scroll down to see the multiple figures on a given page. From Permian through Jurassic, two different tectonic interpretations are presented. These figures were derived from many sources; however, several of the most influential to the figures are listed below.
All of above in: Burchfiel, B. C., et al (eds), 1992,The Cordilleran Orogen: Conterminous U. S. , DNAG Vol G-3, Geological Society of America, Boulder Co.
Other References:
Ingersoll and Schweickert, 1986, Tectonics, vol 5, p. 901-912 (Alternative tectonic interpretations Permian - Jurassic)
Pacific Coast Paleogeography Syp 1 (Pacific Sect SEPM), Stewart et al, 1977:
Ross; Poole et al; Poole and Sandberg; Rich; Stevens (Paleozoic paleogeography)
Riggs and Blakey, 1993, in Dunne and McDougall, Mz Paleogeography Western US (Pacific Sect SEPM) (Mesozoic paleogeography)
Blakey, 1994; 1996 (see my reference section elsewhere on this homepage) (Details of paleogeography on Colorado Plateau)
