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Sediment and Erosion, Transport and Deposition
This article provides an overview of the sedimentary processes that occurred in the aftermath of the May 18, 1980 eruption of Mount St. Helens. Topics include the vast quantity of easily erodable volcanic deposits, high sedimentation rates downstream from the volcano, changes in drainage patterns caused by the debris avalanche that triggered the eruption, and some efforts to control the downstream movement of sediment.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
Type of resource:
  • Visual:
    • Photograph
  • Text:
    • Ref. material
Subject:
  • Geological Sciences:
    • Geology
  • Natural hazards
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
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DLESE Catalog ID: USGS-ED-000-000-000-051
Resource contact / Creator / Publisher:
Publisher: United States Geological Survey (USGS)
Cascades Volcano Observatory
http://vulcan.wr.usgs.gov/

Contact: Joseph J. Kerski
Educational Resources
United States Geological Survey (USGS)

Contact: Phil Stoffer
Educational Resources
United States Geological Survey (USGS)