Devonian Paleogeography, Southwestern US

Devonian Paleogeography, Southwestern US (370 Ma). Carbonate deposits continue to dominate the continental shelf. Significant changes in sea level have incised canyons into the shelf

View to west of above. The Antler arc approaches SW North America, plowing into slope-rise deposits off the continent. As the arc progresses eastward, it will thrust these deep water deposits onto the continental shelf

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