What are some unanswered questions about hotspot volcanoes and mantle plumes?

Hotspots are places where the magma rises up through the crust. They are caused by a static source of magma, often away from plate margins. As the plate moves ... Cabo Verde · Cape Verde Hotspot Volcano Group · Composite | Stratovolcano · Pleistocene. Hot-spot volcanism. Volcanoes can also form above a column of superheated magma called a mantle plume. This may happen in areas that are distant from plate ... Apr 12, 2017 ... As the plate moves west-northwest, each volcano moves with it from its place of origin above the hot spot. The age and orientation of the ... intraplate, hotspot volcano, on four occasions from February 1987 to September 1990. ... (hotspot and island-arc) hydrothermal venting, if analogous to ... May 25, 2017 ... Abstract. Mantle plumes are buoyant upwellings of hot rock that transport heat from Earth's core to its surface, generating anomalous regions of ... 2. How does magma get to the Earth's crust to create a hotspot volcano? · Magma travels to Earth's surface through an upward tunnel from deep within Earth. A volcanic "hotspot" is an area in the mantle from which heat rises as a thermal plume from deep in the Earth. High heat and lower pressure at the base of the ... 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 ... The Iceland hotspot and mighty geological phenomena. Iceland sits spanning the Mid-Atlantic Ridge tectonic plate boundary which separates the Eurasian and ...