Other
Scientific paper
Feb 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991sci...251..549b&link_type=abstract
Science (ISSN 0036-8075), vol. 251, Feb. 1, 1991, p. 549-552. Research supported by McCrone Associates, Inc.
Other
40
Asteroids, Carbonaceous Chondrites, Interplanetary Dust, Meteoritic Composition, Petrology, Cosmochemistry, Microstructure, Mineralogy, Serpentine, X Ray Diffraction, Interplanetary Dust, Idps, Asteroids, Origin, Mineralogy, Tochilinite, Stony Meteorites, Chondrites, Carbonaceous Chondrites, Cm2 Chondrites, Petrogenesis, Samples, Extraterrestrial, Source, Laboratory Studies, Electron Microscopy, Sem, Comparisons, Parent Bodies, Compositon, Description
Scientific paper
Tochilinite, an ordered mixed-layer mineral containing Mg, Al, Fe, Ni, S, and O, has been identified in an interplanetary dust particle (IDP). This mineral is found in only one other class of meteoritic materials, type CM carbonaceous chondrites. The presence of tochilinite in an IDP provides a direct petrogenetic link between a member of the layer-silicate subset of IDPs and a specific class of meteorites and thus establishes that some IDPs collected in the stratosphere have an asteroidal origin. The scarcity of this IDP type suggests that materials with CM mineralogy are not abundant among the dust-producing asteroids.
Bradley John P.
Brownlee Don E.
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