Mount St. Helens Petrology Workshop

Eos, Transactions, American Geophysical Union
By: , and 



Following seismic activity in late September 2004, the current eruption of Mount St. Helens began with an explosive steam and ash emission on 1 October 2004, with hot dacite emerging from the crater floor on 11 October 2004. Nearly two years later, with more than 80 million cubic meters of erupted dacite, accompanied by rare explosions and predominantly shallow seismicity questions still remain about what initiated and what is sustaining the eruption.

The U.S. Geological Survey's (USGS) Cascade Volcano Observatory (CVO) hosted the 2006 Mount St. Helens Petrology Workshop in Vancouver, Wash., on 27–30 August 2006. With many of the more than 40 workshop participants finalizing contributions to a USGS Professional Paper on the current Mount St. Helens eruption, the workshop was a timely opportunity to share results, reconcile interpretations, and plan future research.

Study Area

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Mount St. Helens Petrology Workshop
Series title Eos, Transactions, American Geophysical Union
DOI 10.1029/2007EO020004
Volume 88
Issue 2
Year Published 2007
Language English
Publisher American Geophysical Union
Contributing office(s) Volcano Hazards Program
Description 1 p.
First page 15
Last page 15
Country United States
State Washington
Other Geospatial Mount St. Helens
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