Le point chaud de Yellowstone , également appelé point chaud de Snake River Plain-Yellowstone , est un point chaud volcanique situé à Yellowstone, aux États-Unis. Il est la cause d'événements volcaniques d'importance dans les États de l'Oregon, du Nevada, de l'Idaho et du Wyoming. Il a créé une série de caldeiras, dont la Island Park Caldera, la Henry's Fork Caldera et la Bruneau-Jarbidge caldera , qui ont formé la Snake River Plain. Le point chaud est actuellement sous la caldeira de Yellowstone.
La plus récente superéruption du point chaud, connue sous le nom de l'éruption de Lava Creek, s'est produite il y a environ 640 000 ans et a formé le tuf de Lava Creek ainsi que la caldeira de Yellowstone.
Source: Wikipedia.org
Copyright: Creative Commons 3.0
Address: Teton, United States
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Source: National Park Service.
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