Pre-1980 tephra-fall deposits erupted from Mount St. Helens, Washington
By: by Donal R. Mullineaux.
Series: U.S. Geological Survey professional paper ;; 1563
Publisher: U.S. G.P.O.
Published: 1995
Place of publication: Washington
Language: eng
Number of pages: 99
Subjects: Volcanic ash, tuff, etc. -- Washington (State) -- Saint Helens, Mount, Region.; Geology, Stratigraphic.
Notes: Includes bibliographical references (p. 92-95).