Mantle plume, or volcanic plume, an upwelling of abnormally hot rock within the Earth's mantle, which can cause volcanic hotspots
Mickey Mantle | mantle | Jack Foreman Mantle | Thomas Plume | Silver Plume, Colorado | Silver Plume | Reggie Mantle | Plume (publisher) | Plume hunting | Mantle (vesture) | Larry Mantle | La Plume de Ma Tante | Gas mantle | Clive Mantle | White Plume Mountain | S2 ''White Plume Mountain'' | PUFF-PLUME | Mantle plume | mantle plume | Mantle (mollusc) | Luther Blissett (nom de plume) | La Plume Township, Lackawanna County, Pennsylvania | gas mantle | Alex White Plume |
Another of his hypotheses is that the theory of convective mantle plumes in the Earth, as proposed by W. Jason Morgan, is invalid and that hotspots and oceanic islands such as Hawaii or Iceland are rather caused by chemical/mineralogical anomalies in the upper mantle.
Ocean island basalt, mainly alkaline mantle plume generated intra-plate basalts