Kilauea lava cascade

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Uploaded by on Nov 28, 2010

high resolution version 赤い溶岩の表面を黒い皮が次々と流れてくる。皮はこの溶岩が大気に露出して冷えて固まった部分だ。この皮が狭さく部で渋滞して天井をつくると、赤い溶岩は地下を流れること­になる。溶岩洞窟はこうしてできる。溶岩洞窟は溶岩を冷却させないで遠くまで運ぶ。玄武岩火山が大きな山体をつくることができるのは、このしくみによる。

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  • wow that looks so cool :D

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