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Yellowstone Caldera

Wyoming USA

  • Independent
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“a dormant super volcano”

The Yellowstone Caldera is the volcanic caldera located in Yellowstone National Park in the United States, sometimes referred to as the Yellowstone Supervolcano. The caldera is located in the northwest corner of Wyoming, in which the vast majority of the park is contained. The major features of the caldera measure about 34 by 45 miles. The last full-scale eruption of the Yellowstone Supervolcano, the Lava Creek eruption which happened nearly 640,000 years ago, ejected approximately 240 cubic miles of rock, dust and volcanic ash into the sky.Geologists are closely monitoring the rise and fall of the Yellowstone Plateau, which measures on average 0.6 inches  yearly, as an indication of changes in magma chamber pressure. The source of the Yellowstone hotspot is controversial. Some geoscientists hypothesize that the Yellowstone hotspot is the effect of an interaction between local conditions in the lithosphere and upper mantle convection. Others prefer a deep mantle origin (mantle plume). Part of the controversy is due to the relatively sudden appearance of the hotspot in the geologic record. Additionally, the Columbia Basalt flows appeared at the same approximate time, causing speculation about their origin.

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Reviewed by
Will Nicolson

  • Road Warrior
  • 15 Reviews
  • 9 Helpful
December 10, 2015
Rated 5.0

This encompasses a huge portion of Yellowstone National Park, so chances are you'll spend time in it whether you like it or not. And you should like it - it makes for some very impressive features indeed - huge geysers, colourful steaming hot springs, fumaroles, steam caves, mud pots, basically anything geothermal is a result of the caldera.

1 person found this review helpful

Reviewed by

  • 6 Reviews
  • 6 Helpful
September 03, 2014
Rated 4.0

Wonderful if you fully appreciate what you are seeing.

1 person found this review helpful

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Yellowstone Caldera


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