Iron-nickel 50-50 superstructure in the Santa Catharina meteorite

Details Iron-nickel 50-50 superstructure in the Santa Catharina meteorite Iron-nickel 50-50 superstructure in the Santa Catharina meteorite

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.277..283d&link_type=abstract

Nature, vol. 277, Jan. 25, 1979, p. 283, 284.

Other

20

Iron Meteorites, Meteoritic Composition, Meteoritic Microstructures, Body Centered Cubic Lattices, Electron Microscopy, Mossbauer Effect, Nickel, X Ray Diffraction

Scientific paper

Evidence is presented that the bulk of the Ni-rich Santa Catharina ataxite consists of up to 50% Fe-Ni superstructure. The data, based on Moessbauer spectra, electron microprobes, and X-ray measurements, indicate that the Santa Catharina meteorite differs from the Cape York and Toluca meteorites. It is suggested that the ordered Fe-Ni in Santa Catharina and in other meteorites is probably a result of slow cooling of the parent body.

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