NEWBERRY VOLCANO CENTRAL OREGON

NEWBERRY VOLCANO CENTRAL OREGON

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Product Details

Product Number: 328736
Series: FS-2011-3145
Scale: NO SCALE
Alternate ID: FS-2011-3145
Authors: JOHN W EWERT
Version Date: 01/01/2011
Regions: OR
Countries: USA
Media: Paper
Format: Folded

Additional Details

Description: Summary

Hidden in plain sight, Oregon’s massive Newberry Volcano is the largest volcano in the Cascades volcanic arc and covers an area the size of Rhode Island. Unlike familiar cone-shaped Cascades volcanoes, Newberry was built into the shape of a broad shield by repeated eruptions over 400,000 years. About 75,000 years ago a major explosion and collapse event created a large volcanic depression (caldera) at its summit. Newberry last erupted about 1,300 years ago, and present-day hot springs and geologically young lava flows indicate that it could reawaken at any time. Because of its proximity to nearby communities, frequency and size of past eruptions, and geologic youthfulness, U.S. Geological Survey scientists are working to better understand volcanic activity at Newberry and closely monitor the volcano for signs of unrest.
Print Date: 2011
Height In Inches: 11.000
Length In Inches: 8.500
Two Sided: Yes
Pieces: 1
Languages: English

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