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Trace Element Composition of the Mount St. Helens Plume: Stratospheric Samples from the 18 May Eruption
Ist Teil von
Science (American Association for the Advancement of Science), 1981-02, Vol.211 (4484), p.827-830
Ort / Verlag
United States: The American Association for the Advancement of Science
Erscheinungsjahr
1981
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Atmospheric particulate material collected from the stratosphere in the plume of the 18 May 1980 eruption of the Mount St. Helens volcano was quite similar in composition to that of ash that fell to the ground in western Washington. However, there were small but significant differences in concentrations of some elements with altitude, indicating that the stratospheric material was primarily produced from fresh magma, not fragments of the mountain.