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Redoubt reported activity





Event Name : Redoubt 450 yBP

Start: 450 Years BP Tephrochronology
Stop: 150 Years BP Tephrochronology

Pyroclastic flow, surge, or nuee ardente: BibCard BibCard
Eruption Type:Explosive

Description: From Beget and Nye (1994): "A prehistoric pyroclastic flow deposit is exposed between two horizons of till in a stream cut through moraines just west of the piedmont lobe of the Drift Glacier (Fig. 1 [in original text]). The 1-2-m- thick flow rode up a steep, 10-m-high slope cut on the older moraine, and is truncated and buried by a younger moraine. These are the innermost moraines of the Drift Glacier, lying only a few hundred meters beyond its current border. They were probably deposited during the Little Ice Age of the 16th-19th century, so that the intercalated pyroclastic flow is also probably only a few hundred years old."

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Page modified: March 30, 2017 14:36
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