What are flood basalts, and are they related to mantle plumes?

Dec 5, 2022 ... A line of volcanic activity stretching from the Columbia Plateau of eastern Oregon and Washington all the way to the Yellowstone Plateau at the intersection of ... The hotspot is fixed, so as the plates move, the first volcano moves away from the source of magma, and then becomes extinct. A new volcano forms over the ... Part of the Cutting Edge collection. The NAGT/DLESE On the Cutting Edge project helps geoscience faculty stay up-to-date with both geoscience research and ... Apr 3, 2024 ... Volcanic hotspots are permanent and localized regions of intense volcanic activity on Earth's surface, typically found in the interior of ... Volcanoes grow above hotspots. A hotspot is a zone of melting above a mantle plume. · Hotspot volcanoes are better able to penetrate oceanic crust than ... Aug 13, 2012 ... History of Yellowstone's Supervolcano · How the Yellowstone Caldera Formed · Testing the Volcano Mantle Plume Theory with Corn Syrup. Jan 4, 2019 ... Based on observations mainly made on the Hawaiian volcanoes the compositional evolution of hotspot volcanoes is believed to reflect the ... The movement carries the volcanic islands away from the hot spot, making them dormant. Meanwhile new, active volcanoes form at the hot spot, which today is ... This lies at a fixed position under the Tectonic Plate. As the plate moves over this “hot spot”, the upwelling lava creates a steady succession of new volcanoes ... The hotspots are creating volcanoes. Since the hotspot is mostly stationary when the tectonic plate moves it creates a new volcano. The action of the plates ...