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Science 20 February 1981:
Vol. 211. no. 4484, pp. 827 - 830
DOI: 10.1126/science.211.4484.827
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Articles

Trace Element Composition of the Mount St. Helens Plume: Stratospheric Samples from the 18 May Eruption

TERI VOSSLER 1, DAVID L. ANDERSON 1, NAMIK K. ARAS 1, JANET M. PHELAN 1, and WILLIAM H. ZOLLER 1

1 Department of Chemistry, University of Maryland, College Park 20742

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.

Submitted on October 2, 1980
Revised on January 9, 1981


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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D. K. Chester and D.K. Chester (1988)
Progress in Physical Geography 12, 1-35
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Mercury Content of Equisetum Plants Around Mount St. Helens One Year After the Major Eruption.
B. Z. Siegel, B. Z. SIEGEL, and S. M. SIEGEL (1982)
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Measurements of the Volcanic Plumes of Mount St. Helens in the Stratosphere and Troposphere: Introduction.
J. B. Pollack and J. B. POLLACK (1981)
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Science. ISSN 0036-8075 (print), 1095-9203 (online)