Towards a complete inventory of stratospheric dust particles, with implications for their classification

Zolensky, Michael E., Mackinnon, Ian D.R., & McKay, David S. (1984) Towards a complete inventory of stratospheric dust particles, with implications for their classification. In Lunar and Planetary Science Conference, Lunar and Planetary Institute, Houston, Texas, USA, pp. 963-964.

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Several investigators have recently proposed classification schemes for stratospheric dust particles [1-3]. In addition, extraterrestrial materials within stratospheric dust collections may be used as a measure of micrometeorite flux [4]. However, little attention has been given to the problems of the stratospheric collection as a whole. Some of these problems include: (a) determination of accurate particle abundances at a given point in time; (b) the extent of bias in the particle selection process; (c) the variation of particle shape and chemistry with size; (d) the efficacy of proposed classification schemes and (e) an accurate determination of physical parameters associated with the particle collection process (e.g. minimum particle size collected, collection efficiency, variation of particle density with time). We present here preliminary results from SEM, EDS and, where appropriate, XRD analysis of all of the particles from a collection surface which sampled the stratosphere between 18 and 20km in altitude. Determinations of particle densities from this study may then be used to refine models of the behavior of particles in the stratosphere [5].

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ID Code: 55654
Item Type: Conference Paper
Refereed: Yes
Additional Information: GeoRef, Copyright 2009, American Geological Institute. 1986-024072
Keywords: aeronomy, classification, composition, interplanetary dust, interplanetary space, inventory, stratosphere
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Sciences not elsewhere classified (040199)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Mineralogy and Crystallography (040306)
Divisions: Current > Institutes > Institute for Future Environments
Copyright Owner: Copyright 1984 Lunar and Planetary Institute
Deposited On: 30 Jan 2013 06:17
Last Modified: 07 Apr 2013 03:12

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