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Niigata-Yake-Yama : ウィキペディア英語版 | Niigata-Yake-Yama
is an active volcano in Honshu, Japan. A large eruption in 887 AD sent pyroclastic flows all the way to the Japan Sea. ==Morphology== The volcano takes the form of a lava dome that was built above a ridge of a Tertiary mountain range, near the Japanese coast. The volcano is one of the youngest in Japan, its age is estimated at only 3100 years old. The top of the lava dome is cut by fissures where mild phreatic eruptions have taken place in recent historical times.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Niigata-Yake-Yama」の詳細全文を読む
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