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National Geographic Education - National Geographic Society
A 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.
Oct 19, 2023
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A caldera is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large ...
2 days ago · Most calderas—large circular or oval depressions more than 1 km (0.6 mile) in diameter—have been formed by inward collapse of landforms ...
Apr 9, 2015 · The caldera is 10 km in diameter and 500-1,000 m deep. Subsequent eruptions formed domes, cinder cones, and explosion pits on the caldera floor.
Apr 30, 2024 · A caldera is a depression created after a volcano partially collapses after releasing the majority of its magma chamber in an explosive eruption.
Oct 8, 2024 · Caldera, large bowl-shaped volcanic depression more than one kilometre in diameter and rimmed by infacing scarps. Calderas usually, if not ...
Apr 17, 2023 · Calderas are excavational (or inverse) volcanoes with relief below the general land surface because they form from subsidence (or foundering) of ...
When an erupting volcano empties a shallow-level magma chamber, the edifice of the volcano may collapse into the voided reservoir, thus forming a steep, bowl- ...
Craters are formed when volcanoes spew lava and ash out, while calderas are formed when a volcano's interior magma chamber collapses. Craters are formed from an ...
Video for Caldera volcano description
Sep 28, 2010 · Detailed Description. A caldera is a large, usually circular volcanic depression formed when ...
Duration: 2:12
Posted: Sep 28, 2010