USGS/Cascades Volcano Observatory, Vancouver, Washington
Crater Lake, Oregon -
Mazama Ash
- Background and Information
-
DESCRIPTION: Mazama Ash
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Mount Mazama and Crater Lake Caldera ...
Mazama Ash ...
Mazama Ash at Mount Bachelor ...
Mazama Ash at Mount Baker ...
Mazama Ash at Mount Hood ...
Mazama Ash in Nebraska ...
- Maps and Graphics
- Items of Interest
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Ash and Tephra - Description
-- general information about volcanic ash, including definitions and hazards
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Ash and Tephra - Menu
-- general information about volcanic ash, including definitions and hazards
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Crater Lake - Menu
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Mazama Ash - Description
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Mazama Ash at Mount Bachelor - Description
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Mazama Ash at Mount Baker - Description
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Mazama Ash at Mount Hood - Description
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Mazama Ash in Nebraska - Description
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Mount Mazama and the Formation of Crater Lake Caldera - Description
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Stratigraphic section of Mazama ash
exposed in excavation at West Village parking lot,
at Mount Bachelor
-- [Graphic,12K,GIF]
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Letter and number symbols to right of column are horizon
designations of surface and buried soils.
Modified from: Scott and Gardner, 1990
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Thickness vs. distance from vent for several tephras from
Cascade Range volcanoes - Graphic
-- [Graphic,18K,InlineGIF]
-- Modified from:
Hoblitt, et.al., 1987, USGS Open-File Report 87-297
URL for CVO HomePage is:
<http://vulcan.wr.usgs.gov/home.html>
URL for this page is:
<http://vulcan.wr.usgs.gov/Volcanoes/CraterLake/MazamaAsh/framework.html>
If you have questions or comments please contact:
<GS-CVO-WEB@usgs.gov>
04/15/02, Lyn Topinka