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A hotspot's position on the Earth's surface is independent of tectonic plate boundaries, and so hotspots may create a chain of volcanoes as the plates move above them. There are two hypotheses that attempt to explain their origins. One suggests that hotspots are due to mantle plumes that rise as thermal diapirs from the core–mantle boundary. [2]
The total surface area of volcanic products of the Jemez Lineament volcanic fields is 23,870 square kilometers (9,220 sq mi). The total erupted volume is about 3,300 cubic kilometers (790 cu mi). The Jemez volcanic field, located at the intersection of the Rio Grande Rift with the lineament, has produced three times the volume of eruption as ...
The hotspot's most recent caldera-forming supereruption, known as the Lava Creek Eruption, took place 640,000 years ago and created the Lava Creek Tuff, and the most recent Yellowstone Caldera. The Yellowstone hotspot is one of a few volcanic hotspots underlying the North American tectonic plate; another example is the Anahim hotspot.
Bathymetric map of the Northern Galápagos Volcanic Province. The Galápagos hotspot has been sited close to the GSC since the break-up of the Farallon plate as demonstrated by the Cocos and Carnegie aseismic ridges. [7] More recently the hotspot has been located to the south of the GSC resulting in an overall relative northward movement of the ...
The HawaiĘ»i hotspot is a volcanic hotspot located near the namesake Hawaiian Islands, in the northern Pacific Ocean.One of the best known and intensively studied hotspots in the world, [1] [2] the Hawaii plume is responsible for the creation of the Hawaiian–Emperor seamount chain, a 6,200-kilometer (3,900 mi) mostly undersea volcanic mountain range.
A portion of the track of the New England hotspot. The westernmost white dot is Mont Royal in Montreal. The white dot just off the continental shelf is the Bear seamount. The New England hotspot, also referred to as the Great Meteor hotspot and sometimes the Monteregian hotspot, is a volcanic hotspot in the North Atlantic Ocean.
Known as a super eruption for its magnitude, the event emptied out enough volcanic material to produce the 30-by-40-mile-wide caldera. The National Park Service said the eruption covered an area ...
The Galápagos hotspot is a volcanic hotspot in the East Pacific Ocean responsible for the creation of the Galápagos Islands as well as three major aseismic ridge systems, Carnegie, Cocos and Malpelo which are on two tectonic plates. The hotspot is located near the Equator on the Nazca Plate not far from the divergent plate boundary with the ...