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A caldera may form on a volcano.
Mount St. Helens is an active stratovolcano. Composite Cone volcano - APEX
A caldera.
The noun form of the adjective faithful is faithfulness.The word faithful is the adjective form of the noun faith.
The mountain collapses into an emptied magma chamber
When a large explosive volcanic eruption destroys most of the volcano, the resulting large crater is called a caldera.
Mount Rainier has a summit pit but does not have a caldera.
How hot is the Yellowstone hotspot? At 80 kilometres beneath the Earth's surface it's about 1450 °C, say researchers - which, for a supervolcano, is only lukewarm.That doesn't mean we won't get http://wiki.answers.com/article/dn12896-magma-surge-causes-record-rise-at-yellowstone.html. The last explosion, some 642,000 years ago, created the Yellowstone caldera and http://wiki.answers.com/article/mg18925345.100-how-a-supervolcano-covers-a-continent.html.
How hot is the Yellowstone hotspot? At 80 kilometres beneath the Earth's surface it's about 1450 °C, say researchers - which, for a supervolcano, is only lukewarm.That doesn't mean we won't get http://wiki.answers.com/article/dn12896-magma-surge-causes-record-rise-at-yellowstone.html. The last explosion, some 642,000 years ago, created the Yellowstone caldera and http://wiki.answers.com/article/mg18925345.100-how-a-supervolcano-covers-a-continent.html.
The superlative form is "most faithful" and the comparative is "more faithful".
it is caldera
A caldera or crater.