The Hedjaz meteorite

Details The Hedjaz meteorite The Hedjaz meteorite

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986metic..21..159f&link_type=abstract

Meteoritics (ISSN 0026-1114), vol. 21, June 30, 1986, p. 159-168.

Computer Science

4

Chondrites, Meteoritic Composition, Microanalysis, Breccia, Mineralogy, Olivine, Petrology, Pyroxenes

Scientific paper

The Hedjaz meteorite has been studied in detail and, on a chemical basis, with 22.1 percent total Fe, 9 percent metallic Fe, 1.3 percent Ni and constant olivine composition Fa(23-24), can be classified as an L-group chondrite. However, petrographically, Hedjaz is quite heterogeneous and contains features characteristic of types 3, 4, 5, and 6, observations that refute a petrographic type classification. Indeed, Hedjaz, as a complex breccia, exhibits no evidence of metamorphic equilibration after accretion and supports the contention that type 4 (also 5 and 6) chondrites are not derivatives of type 3 material, and that types 5 and 6 are not necessarily more 'metamorphosed', only better crystallized.

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