What is a volcanic hotspot?
Quick Answer
A volcanic hotspot is an area where hot mantle material rises and melts through the crust, creating volcanoes away from plate boundaries. As a plate moves over the hotspot, it can form a chain of volcanic islands or mountains.
The Full Story
Hotspots are thought to be fed by mantle plumes or other localized upwellings of hot material. They are not located at plate boundaries, which is why places like Hawaii can have active volcanoes far from subduction zones or rifts. As the Pacific Plate moves over the Hawaiian hotspot, a trail of islands and seamounts forms, with the youngest volcanoes still active at the southeastern end. Similar hotspot tracks exist in Yellowstone and parts of the Pacific. Hotspots help scientists study mantle processes and plate motion over millions of years.
Key Facts
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Suggested video title for this topic:
"Why some volcanoes erupt in the middle of a plate"
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