Ash-flow tuffs: their origin, geologic relations and identification /

Autor Ross, Clarence S., Smith, Robert L.
Vydáno 1961

Recent eruptive history of Mount Hood, Oregon, and potential hazards from future eruptions : an assessment of expectable kinds of future eruptions and their possible effects on human lives and property based on Mount Hood's eruptive behavior during the last 15,000 years /

Autor Crandell, Dwight Raymond, 1923-
Vydáno 1980