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Bookmark or Share- Calderas - National Geographic SocietyA caldera is a large depression formed when a volcano erupts and collapses. During a volcanic eruption , magma present in the magma chamber underneath the volcano is expelled, often forcefully. When the magma chamber empties, the support that the magma had provided inside the chamber disappears.
- Types of Calderas - National Geographic SocietyVocabulary. A caldera is a depression created after a volcano releases the majority of the contents of its magma chamber in an explosive eruption. Without any structural support below, the land around the erupting volcanic vent or vents collapses inwardly, creating the bowl-shaped caldera.
- Caldera | Volcanic, Formation, Crater | BritannicaCaldera, large bowl-shaped volcanic depression more than one kilometre in diameter and rimmed by infacing scarps. Calderas usually, if not always, form by the collapse of the top of a volcanic cone or group of cones because of removal of the support formerly furnished by an underlying body of magma.
- Caldera - WikipediaMount Mazama's eruption timeline, an example of caldera formation. A caldera (/ k ɔː l ˈ d ɛr ə, k æ l-/ kawl-DERR-ə, kal-) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant ...
- Yellowstone Caldera | Volcano type, Eruption, Size, Map, & FactsYellowstone Caldera, enormous crater in the western-central portion of Yellowstone National Park, northwestern Wyoming, that was formed by a cataclysmic volcanic eruption some 640,000 years ago. It measures approximately 30 by 45 miles (50 by 70 km), covering a large area of the park.
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