USGS/Cascades Volcano Observatory, Vancouver, Washington
Ash and Tephra
- Background and Information
-
DESCRIPTION: Volcanic Ash
--
Aggluntinate ...
Airfall ...
Ash ...
Ashfall ...
Blocks ...
Bombs ...
Bread-crust bombs ...
Cinder ...
Cow-dung bombs ...
Fusiform bombs ...
Glass ...
Lapilli ...
Pele's hair ...
Pele's tears ...
Pumice ...
Pyroclastic-fallout ...
Reticulite ...
Ribbon bombs ...
Scoria ...
Spatter ...
Spindle bombs ...
Tephra ...
Tephra clasts ...
Tephra deposits ...
Tephra fall ...
Thread-lace scoria ...
Volcanic ash ...
Volcanic bombs ...
Welded spatter ...
- Terminology
- Maps, Graphics, and Images
- Publications and Reports
- Items of Interest
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A Simple Calculator of Ballistic Trajectories for Blocks Ejected during Volcanic Eruptions
-- Mastin, L.G., 2001, USGS Open-File Report 01-45, 16p
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Aircraft and Volcanic Ash - Menu
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Ash Accumulation of 10cm or More for Northern Cascade Volcanoes - Map
-- Modified from: Scott, et.al., 1995
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Ash and Tephra - Description
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Ash and Tephra - Photo Archives - Mount St. Helens
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Ash Accumulation of 10cm or More for Northern Cascade Volcanoes - Map
-- Modified from: Scott, et.al., 1995
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Ash Accumulation - Thickness vs.
Distance of Select Cascade Range Tephras - Plot
-- Modified from: Hoblitt, et.al., 1987
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Ashfall: Mount St. Helens, May 18, 1980
-- Excerpt from: Tilling, et.al., 1990
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Crater Lake Mazama Ash - Menu
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Danger in the Stratosphere: Aircraft and Volcanic Plumes
-- Excerpt from: Wright and Pierson, USGS Circular 1073
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Effects of Mount St. Helens Eruption on Selected Lakes in Washington
-- Dion and Embrey, 1981, USGS Circular 850-G
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Hazards: Tephra
-- Excerpt from: Hoblitt, et.al., 1987, USGS Open-File Report 87-297
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Maps and Graphics - Ash and Tephra
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Mazama Ash, Crater Lake, Oregon - Menu
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Mount St. Helens May 18, 1980 Tephra - Menu
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Mount St. Helens volcanic-ash fall in the Bull Run watershed, Oregon, March-June 1980
-- Shulters and Clifton, 1981, USGS Circular 850-A
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CVO Photo Archives - Ash and Tephra - Mount St. Helens
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Pinatubo - The 1991 Pinatubo eruptions and their effects on aircraft operations
-- Casadevall, et.al., 1996, IN: Fire and Mud
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Publications and Reports - Ash and Tephra
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Schematic drawing of erupting volcano showing
tephra types - Graphic
-- [Graphic,12K,GIF]
-- Modified from:
Gardner, et.al., 1995, USGS Open-File Report 95-498
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Tephra Accumulation - Thickness vs.
Distance of Select Cascade Range Tephras - Plot
-- Modified from: Hoblitt, et.al., 1987
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Toxicity of Mount St. Helens ash leachate to a blue-green alga
-- McKnight, et.al., 1981, USGS Circular 850-F
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Volcanic Ash -- Danger to Aircraft in the North Pacific
-- Neal, et.al., 1997, USGS Fact Sheet 030-97
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Volcanic Ash - Description
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Volcanic Ash and Aviation Safety: Proceedings of the First
International Symposium on Volcanic Ash and Aviation Safety
-- Casadevall, (ed.), 1994, USGS Bulletin 2047, 450p.
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Volcanic Ash Fall -- A "Hard Rain" of Abrasive Particles
-- Kenedi, et.al., 2000, USGS Fact Sheet 027-00
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Volcanic Emissions and Global Change Project - CVO Project Menu
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Volcanic Eruptions, Blasts, Plumes, Ballistics, etc. - Menu
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Volcanic Gas and Emissions - Menu
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Volcano and Hydrologic Hazards - Menu
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What To Do if a Volcano Erupts
-- includes Ashfall
- Useful Links
- Other Menus of Interest
URL for CVO HomePage is:
<http://vulcan.wr.usgs.gov/home.html>
URL for this page is:
<http://vulcan.wr.usgs.gov/Glossary/Tephra/framework.html>
If you have questions or comments please contact:
<GS-CVO-WEB@usgs.gov>
04/18/08, Lyn Topinka