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CVO Website - Glacier Peak Volcano, Washington |
 | | Glacier Peak is probably best known as the source of voluminous tephra eruptions dated to 11,250 years B.P. Two tephra layers produced at this time have been identified as far as 800-1,000 kilometers to the east, and are widely used by geologists, anthropologists, and paleoecologists to date late Pleistocene sediments. |
 | | Glacier Peak and Mount St. Helens are the only volcanoes in Washington State that have generated large, explosive eruptions in the past 15,000 years. |
 | | Glacier Peak, geographically the most remote of the Cascade volcanoes, is a Pleistocene and Holocene composite volcano composed chiefly of dacite, with a minor amount of basalt erupted from satellitic vents (Tabor and Crowder, 1969; Beget, 1982, 1983). |
| vulcan.wr.usgs.gov /Volcanoes/GlacierPeak/description_glacier_peak.html (0 words) |
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