Mount St. Helens, Washington, 1980 volcanic eruption: magmatic gas component during the first 16 days

Journal Article · Tue Jan 01 00:00:00 EST 1980 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.208.4449.1258· OSTI ID:5443563

Stoiber, R E; Williams, S N; Malinconico, L L

Eruption plumes of Mount St. Helens, Washington, showed low rates of sulfur dioxide emission, and ash leachates had low ratios of sulfur to chlorine. These data and the nonvesicularity of ash fragments are indicative of only a small eruptive magmatic component. The low amounts of soluble fluorine on the ashes pose no health problems. Violent magmatic activity is possible, and thus continued geochemical monitoring is advised.

• OSTI ID: 5443563
• Journal Information: Science (Washington, D.C.); (United States), Vol. 208
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
CHLORINE
ECOLOGICAL CONCENTRATION
MT ST HELENS
ERUPTION
SULFUR
SULFUR DIOXIDE
AIR POLLUTION
ASHES
FLUORINE
GEOCHEMICAL SURVEYS
LEACHATES
MAGMA SYSTEMS
PLUMES
QUANTITY RATIO
VOLCANIC GASES
VOLCANISM
WASHINGTON
CASCADE MOUNTAINS
CHALCOGENIDES
DISPERSIONS
ELEMENTS
FEDERAL REGION X
FLUIDS
GASES
GEOTHERMAL SYSTEMS
HALOGENS
MIXTURES
MOUNTAINS
NONMETALS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
POLLUTION
RESIDUES
SOLUTIONS
SULFUR COMPOUNDS
SULFUR OXIDES
SURVEYS
USA
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
580202 - Geophysics- Volcanology- (1980-1989)