Other
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987rspta.323..305b&link_type=abstract
(Royal Society (London), Philosophical Transactions, Series A, vol. 323, no. 1572, 1987, p. 305-311) IN: Diffuse matter in the s
Other
9
Chemical Composition, Cosmic Dust, Galactic Evolution, Mineralogy, Morphology, Asteroid Belts, Cosmic Rays, Interplanetary Dust, Solar Activity Effects, Solar Wind, Cosmic Dust, Interplanetary Dust, Morphology, Chemistry, Mineralogy, Laboratory Studies, Samples, Extraterrestrial, Origin, Source, Matrix, Particles, Asteroids, Comets, Composition, Comparisons, Hydration, Aggregates, Porosity, Classification, Characteristics, Analysis
Scientific paper
Significant numbers of 5-micron to 1-mm particles of interplanetary dust have been collected and subjected to laboratory analysis. The extraterrestrial origin of selected samples has been established by detection of space-exposure effects such as implanted solar wind and tracks of solar cosmic rays. The collected samples should contain both cometary and asteroidal particles. The asteroidal component is probably a representative sample of typical main-belt asteroids. The elemental composition of the majority of particles is similar to CI and CM chondrites. Most particles can be grouped into one of two general classes, those that contain hydrated minerals and those that are anhydrous. Some of the hydrated particles may be samples of CI/CM matrix, whereas most of the anhydrous particles are clearly unrelated to any known chondrite class. Some of the anhydrous particles are very porous aggregates that at least superficially resemble models of cometary meteors.
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