Computer Science
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.314..338t&link_type=abstract
Nature (ISSN 0028-0836), vol. 314, March 28, 1985, p. 338-340.
Computer Science
28
Carbonaceous Chondrites, Evolution (Development), Hydration, Interplanetary Dust, Particle Tracks, Solar Flares, Electron Microscopy, Geochemistry, Mineralogy, Solar System, Meteorites, Interplanetary Dust, Cosmic Dust, Hydration, Particles, Cais, Photomicrographs, Mineralogy, Geochemistry, Composition, Source, Origin, Phases, Carbonaceous Chondrites, Ci Chondrites, Cm2 Chondrites, Silicate, Tem, Electron Microscopy, Fassite, Calcium, Aluminum, Inclusions, Comparisons
Scientific paper
The results of transmission electron microscope observations of a hydrated interplanetary dust particle (IDP) containing Fe-, Mg-rich smectite or mica as a major phase are reported. The sheet silicate appears to have formed by alteration of anhydrous silicates. Fassaite, a Ca, Al clinopyroxene, also occurs in this particle, and one of the crystals exhibits solar-flare tracks, clearly indicating that it is extraterrestrial. Fassaite is a major constituent of the Ca-, Al-rich refractory inclusions found in the carbonaceous chondrites, so its presence in this particle suggests that there may be a link between hydrated IDPs and carbonaceous chondrites in the early history of the solar system.
Buseck Peter R.
Tomeoka Kazushige
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