Lassen Volcanic Center, USA, Volcano Photo




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Lassen Volcanic Center, USA, Volcano photo

Lassen Volcanic Center, USA

Chaos Crags in the foreground and Lassen Peak in the background are large lava dome complexes in the southern Cascade Range.

Chaos Crags consists of a group of five overlapping dacitic lava domes that were erupted a little over 1000 years ago.

Lassen Peak was formed about 25,000 years ago, but last erupted during 1914-17.

PHOTO SOURCE: Dan Dzurisin 1982, US Geological Survey, courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.

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