Refractory interplanetary dust particles

Details Refractory interplanetary dust particles Refractory interplanetary dust particles

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987sci...237.1466z&link_type=abstract

Science (ISSN 0036-8075), vol. 237, Sept. 18, 1987, p. 1466-1468. NASA-supported research.

Computer Science

27

Interplanetary Dust, Mineralogy, Refractory Materials, Glass, Grain Size, Space Debris, Spinel, Interplanetary Dust, Particles, Samples, Extraterrestrial, Characteristics, Refractory Material, Classification, Comparisons, Composition, Grains, Size, Description, Mineralogy, Glasses, Texture, Photomicrographs, Sem, Laboratory Studies, Electron Microscopy, Stem, X-Ray Methods, Edx, Morphology, Analysis

Scientific paper

Criteria are described by which refractory interplanetary dust particles (IDPs) can be differentiated from the products of spacecraft debris. These criteria have been used to discover and characterize IDPs that are composed predominantly of refractory phases. Two of these particles contain hibonite, perovskite, spinel, refractory glass, and a melilite; only hibonite was identified within a third. The grain size for all particles ranges from 0.05 to 1 micrometer, so that they are much finer grained than the refractory calcium- and aluminum-rich inclusions in meteorites. The glass-containing refractory IDPs may be primitive nebular condensates that never completely crystallized and thus have been preserved extant.

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