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

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

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 concentrat...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1981-02, Vol.211 (4484), p.827-830
Hauptverfasser: Vossler, Teri, Anderson, David L., Aras, Namik K., Phelan, Janet M., Zoller, William H.
Format: Artikel
Sprache:eng
Schlagworte:
Aerosols
AIR POLLUTION
Altitude
Analysis
ASHES
CASCADE MOUNTAINS
Chlorides
Chlorine
EARTH ATMOSPHERE
ECOLOGICAL CONCENTRATION
ELEMENTS
Environmental aspects
ENVIRONMENTAL SCIENCES
FEDERAL REGION X
MAGMA
MOUNTAINS
MT ST HELENS
Natural disasters
NORTH AMERICA
PLUMES
Plumes (Fluid dynamics)
POLLUTION
RESIDUES
STRATOSPHERE
Sulfates
Sulfur
TRACE AMOUNTS
USA
Volcanic ash
Volcanic ash, tuff, etc
Volcanic rocks
Volcanism
Volcanoes
WASHINGTON 500200 > Environment, Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
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Zusammenfassung: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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.211.4484.827