Tag Archives: Absaroka Volcanics

Yellowstone Hot Spot, Or Not

Besides the ocean spreading ridges there are several mysterious “hot spots” evident in seamount chains where volatile components of the mantle emerge at a point as a more or less continuous volcano. The most famous of these is the Hawaiian/Emperor … Continue reading

Posted in Geography, Geological Evolution of the Western United States, Geology, Paleogeography, Plate Tectonics | Tagged , , | Leave a comment