Analysis of chondritic interplanetary dust thin-sections

Details Analysis of chondritic interplanetary dust thin-sections Analysis of chondritic interplanetary dust thin-sections

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988gecoa..52..889b&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 52, April 1988, p. 889-900. Research supported by McCrone Associates, Inc

Mathematics

Logic

42

Carbonaceous Chondrites, Interplanetary Dust, Particle Size Distribution, Upper Atmosphere, Chemical Composition, Electron Microscopy, Halley'S Comet, Olivine, Pyroxenes, Interplanetary Dust, Chondritic Material, Samples, Extraterrestrial, Laboratory Studies, Composition, Mineralogy, Petrography, Aem, Electron Microscopy, Analysis, Abundance, Description, Comparisons, Procedure, Photomicrographs, Tem, Silicate, Particles, Pyroxene, Olivine, Smectite, Serpentine

Scientific paper

Chondritic interplanetary dust particles (IDPs) are heterogeneous aggregates of predominantly submicron mineral grains and carbonaceous material, whose bulk compositions agree within a factor of two with type CI/CM carbonaceous chondrites. The mineralogy and petrography of 25 such particles were studied by analytical electron microscopic examination of ultramicrotomed thin sections (500-1000 A thick). Four classes of chondritic IDPs were recognized, referred to as pyroxene, olivine, smectite, and serpentine, and their relative abundances were 9:4:10:2, respectively. Quantitative thin-film analyses indicate that pyroxene particles most closely resemble material emitted from comet Halley. Smectite particles may have formed from pyroxene particles by aqueous alteration of glass and enstatite crystals. Serpentine particles are the only class that are similar to the matrices of carbonaceous chondrites, but these are the least abundant chondritic IDPs. Collectively, chondritic particles are a mineralogically diverse group of extraterrestrial materials.

Affiliated with

Also associated with

No associations

Rating

Analysis of chondritic interplanetary dust thin-sections does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Analysis of chondritic interplanetary dust thin-sections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of chondritic interplanetary dust thin-sections will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-848898