IIE iron meteorite


IIE iron meteorite

The iron meteorites of the IIE chemical type are octahedrites of various coarseness, most of which contain numerous inclusions of recrystallized stony silicates.

They have very mineral compositions and oxygen isotope ratios very similar to the H chondrites, which makes it probable that they originate from the same parent body. The best candidate for this parent body is the S-type asteroid 6 Hebe1. Unlike most iron meteorites, the type IIE are thought to have been melted out of the chondritic surface of the parent asteroid by impacts during its early history.

It is a rare type with 18 known members as of 2002.

References

# [http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1998M%26PS...33.1281G&db_key=AST&data_type=HTML&format=&high=438c93072f28336 M. J. Gaffey & S. L. Gilbert "Asteroid 6 Hebe: The probable parent body of the H-Type ordinary chondrites and the IIE iron metorites"] , Meteoritics & Planetary Science, Vol. 33, p. 1281 (1998).

External links

*http://www.meteorite.fr/en/classification/ironchem.htm#IIE


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