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*a ‘cauldron-like volcanic feature’ usually formed by the collapse of ‘land’ following a ‘volcanic eruption’*
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(from latin ‘caldaria’ meaning ‘cooked pot’)
(root of english term ‘cauldron’)
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(a caldera is a large cauldron-like depression that forms following the evacuation of a magma ‘chamber’ / ‘reservoir’)
(when large volumes of ‘magma’ are erupted over a short time period,structural support for the crust above the magma chamber is lost)
(the ground surface then collapses downward into the partially emptied magma chamber, leaving a massive depression at the surface (from one to dozens of kilometers in diameter))
(although sometimes described as a crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact)
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(only 7 known /caldera-forming collapses’ have occurred since the start of the 2000s, most recently at ‘bárðarbunga volcano’ in ‘iceland’)
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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