Microprobe studies of space weathering effects in extraterrestrial dust grains

Details Microprobe studies of space weathering effects in extraterrestrial dust grains Microprobe studies of space weathering effects in extraterrestrial dust grains

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977rspta.285..433d&link_type=abstract

(Royal Society, Discussion on the Moon - A New Appraisal from Space Missions and Laboratory Analyses, London, England, June 9-12

Physics

2

Cosmic Dust, Extraterrestrial Matter, Lunar Effects, Microanalysis, Surface Properties, Weathering, Auger Spectroscopy, Electron Microscopes, Grain Boundaries, High Voltages, Lunar Dust, Meteoritic Composition, Neon Isotopes, Vacuum Effects

Scientific paper

A new microprobing procedure is used to characterize both the physical and chemical surface properties of individual grains on a microscale. In this procedure the same sub-micrometer size area of a given grain is successively analyzed with a high voltage electron microscope, an Auger microprobe and a field emission scanning electron microscope. This analytical technique has been applied to study lunar weathering effects and to tentatively infer the irradiation history of a Ne-22-rich fraction of the Orgueil meteorite.

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