USGS/Cascades Volcano Observatory, Vancouver, Washington
REPORT:
Recent Eruptive History of Mount Hood, Oregon,
and Potential Hazards From Future Eruptions
-- Dwight R. Crandell, 1980,
Recent Eruptive History of Mount Hood, Oregon,
and Potential Hazards from Future Eruptions:
U.S. Geological Survey Bulletin 1492
Table of Contents
-
Abstract
- Introduction
- Part I -- Recent eruptive periods and their products
- Polallie eruptive period
- Deposits of pyroclastic flows and mudflows
- Ash-cloud deposits and the Parkdale soils
- Age and origin of the Polallie deposits
- Timberline eruptive period
- Deposits of pyroclastic flows and mudflows
- Ash-cloud deposits
- Age and origin of the Timberline deposits
- Old Maid eruptive period
- Deposits in the Sandy River valley
- Deposits in the White River valley
- Crater Rock dome
- Ash-cloud(?) deposit
- Recent flood deposits
-
Recent (Historic?) Pumice
- Part II -- Volcanic hazards assessment
- Potential volcanic hazards
- Pyroclastic flows and associated ash clouds
- Explosive lateral blasts
- Tephra
- Mudflows and floods
- Volcanic gases
- Hazard zones
- Pyroclastic-flow, mudflow, and flood hazard zones PA and PB
- Mudflow and flood hazard zones MA, MB, and M
- Lateral-blast hazard zones LA and LB
- Ash-cloud hazard zone
- Discussion of hazard zones
- Planning for the next eruption
- Planning before an eruption occurrs
- Predicting the next eruption
- Warning signs of an impending eruption
- What to do if there are signs of an impending eruption
- References Cited
- Appendices
- A - Terminology
- B - Measured sections
- C - Chemical analyses
- Index
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07/28/00, Lyn Topinka