Volume 17, Number 3 (1990)

A Decade of Dome Growth at Mount St. Helens, 1980-90

Donald A. Swanson
David A. Johnston Cascades Volcano, Observatory, United States Geological Survey, Vancouver, Washington.
Published September 9, 1990
How to Cite
Swanson, D. A. (1990). A Decade of Dome Growth at Mount St. Helens, 1980-90. Geoscience Canada, 17(3). Retrieved from https://journals.lib.unb.ca/index.php/GC/article/view/3669


The growth of the dacite dome at Mount St. Helens between 1980 and 1986 has been more intensively studied than that of any other dome-building eruption. The growth has been complex in detail, but remarkably regular overall. This paper summarizes some of what has been learned and provides many references to additional information. Whether dome building has ended is an open question, particularly in view of the renewed, though minor, explosive activity of late 1989 and early 1990.