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Scientists claim to have found plume—a vertical stream of magam—beneath Yellowstone NP

A pair of researchers from the University of Texas has found what they claim is evidence of a plume beneath Yellowstone National Park. In their paper published in the journal Nature Geoscience, Stephen Grand and Peter Nelson further propose that the plume is part of a zone that runs to the park all the way from Mexico.


A plume is a still theoretical abnormality that lies at the boundary between the Earth's core and the mantle, and rises through the mantle into the crust—an abnormality that would exist as a vertical stream of magma. As the researchers note, the prospect of a plume beneath Yellowstone has been strongly debated—some have suggested a plume would explain the source of the heat that drives so much surface activity in the park.


https://phys.org/news/2018-03-evidence-plume-beneath-yellowstone-national.html#jCp

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