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Fine particles in the Soufriere eruption plumeThe size distributions of fine particles measured at tropospheric altitudes in the periphery of the eruption plume formed during the April 17, 1979 eruption of Soufriere Volcano and in the low-level effluents on May 15, 1979 were found to be bimodal, having peak concentrations at geometric mean diameters of 1.1 and 0.23 micrometers. Scanning electron microscopy and energy-dispersive X-ray analysis of the samples revealed an abundance of aluminum and silicon and traces of sodium, magnesium, chlorine, potassium, calcium, and iron in the large-particle mode. The submicrometer-sized particles were covered with liquid containing sulfur, assumed to be in the form of liquid sulfuric acid.
Document ID
19820050124
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Woods, D. C.
(NASA Langley Research Center Hampton, VA, United States)
Chuan, R. L.
(Brunswick Corp. Costa Mesa, CA, United States)
Date Acquired
August 10, 2013
Publication Date
June 4, 1982
Publication Information
Publication: Science
Volume: 216
Subject Category
Geophysics
Accession Number
82A33659
Distribution Limits
Public
Copyright
Other

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