Upper Pleistocene pyroclastic-flow deposits and lahars south of Mount St. Helens volcano, Washington
By: by Jack H. Hyde.
Series: Geology of Mount St. Helens volcano, Washington; Geological Survey bulletin ; 1383-B; Geological Survey bulletin ;; 1383-B.
Publisher: U.S. Govt. Print. Off.
Published: 1975
Place of publication: Washington
Language: eng
Number of pages: 20
Subjects: Volcanic ash, tuff, etc. -- Washington (State) -- Saint Helens, Mount.; Lahars -- Washington (State) -- Saint Helens, Mount.; Geology, Stratigraphic -- Pleistocene.; Geology -- Washington (State) -- Saint Helens, Mount.
Notes: Bibliography: p. 20.