Abstract
REGIONS of magmatic activity on and in the Earth's crust have long been attributed to thermal “highs”, hot spots or mantle plumes. Present doctrine1–3 holds that these plumes have a fixed abode in the upper mantle, rising through the lithosphere from time to time, to “burn” holes in the crust. If the lithosphere happens to be moving as a result of active seafloor spreading, a so-called plume scar or plume trace is left in the crust, as a line of volcanoes or intrusive centres.
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WRIGHT, J. Continental Drift, Magmatic Provinces and Mantle Plumes. Nature 244, 565–567 (1973). https://doi.org/10.1038/244565a0
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DOI: https://doi.org/10.1038/244565a0
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