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Collection of Stratospheric Microparticles above the Sulfate Layer Using Balloon-Borne Collectors

Published online by Cambridge University Press:  12 April 2016

J. R. Stephens ,
Y. Nakada ,
T. Onaka  and
F.J.M. Rietmeijer
J. R. Stephens
Affiliation:
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, U.S.A.
Y. Nakada
Affiliation:
Department of Astronomy, Faculty of Science, Univ. of Tokyo, Tokyo 113, Japan
T. Onaka
Affiliation:
Department of Astronomy, Faculty of Science, Univ. of Tokyo, Tokyo 113, Japan
F.J.M. Rietmeijer
Affiliation:
Department of Geology, University of New Mexico, Albuquerque, NM 87131, USA

Abstract

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We report preliminary analytical electron microscope (AEM) analysis of nearly 300 stratospheric particles collected using balloon-borne collectors at 34-36 km altitude. The particles are predominantly silica, plagioclase feldspar, Mg, Fe-silicates and rare barite, metal oxides, and unidentified Fe, Ni, Zn, and Pb particles. The majority of these generally submicron-sized particles are comparable to volcanic particles collected at 20 km altitude from the 1982 eruption of the El Chichon volcano. Because of the uniqueness in altitude and collected particle sizes the collection may also contain interplanetary dust particles of types poorly represented in present collections.

Type
Interplanetary Dust: Space and Earth Environment Studies
Information
International Astronomical Union Colloquium , Volume 126: Origin and Evolution of Interplanetary Dust , 1991 , pp. 49 - 52
Copyright
Copyright © Kluwer 1991

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