In situ measurement of interstellar silicon carbide in two CM chondrite meteorites

Details In situ measurement of interstellar silicon carbide in two CM chondrite meteorites In situ measurement of interstellar silicon carbide in two CM chondrite meteorites

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.348..715a&link_type=abstract

Nature (ISSN 0028-0836), vol. 348, Dec. 27, 1990, p. 715-717. Research supported by NASA.

Computer Science

23

Chondrites, Interstellar Matter, Meteoritic Composition, Silicon Carbides, Abundance, Cold Bokkeveld Meteorite, Crystals, Murchison Meteorite, Stellar Composition, Stellar Envelopes

Scientific paper

The first in situ observations of isotopically anomalous SiC are reported. The grains were found by X-ray mapping of polished sections of two chondritic meteorites, Cold Bokkeveld and Murchison. Ion microprobe measurements showed C-13 enrichments, delta C-13, from 199 to 2800 per mil, proving that the grains are indigenous. SiC grains are revealed only as isolated matrix particles, ruling out the possibility that SiC grains were brought into the solar system as inclusions in larger grains, which protected them from destruction in the solar nebula. Several of the SiC grains are cracked, suggesting that the etching treatment may result in size distributions biased toward smaller grains.

Affiliated with

Also associated with

No associations

Rating

In situ measurement of interstellar silicon carbide in two CM chondrite meteorites 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 In situ measurement of interstellar silicon carbide in two CM chondrite meteorites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In situ measurement of interstellar silicon carbide in two CM chondrite meteorites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1633399