Subject: Volcanic ash, tuff, etc / Year: 1990 - Yale University Library GeoBlacklight Search Results

Start Over Subject Volcanic ash, tuff, etc Year 1990

1. Geologic map of Harrat Hutaymah, with petrologic classification and distribution of ultramafic inclusions, Saudi Arabia

1990. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Saudi Arabia.

2. Geologic maps of pyroclastic-flow and related deposits of the 1980 eruptions of Mount St. Helens, Washington

1990. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Washington (State) and Saint Helens, Mount, Region.

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