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Science 12 February 1965:
Vol. 147. no. 3659, pp. 734 - 736
DOI: 10.1126/science.147.3659.734
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Articles

Electron Microprobe Analysis of Oxygen in an Iron Meteorite

J. F. Lovering 1 and C. A. Andersen 2

1 Department of Geophysics, Australian National University, Canberra
2 Hasler Research Center, Applied Research Laboratories, Inc., Goleta, California

A quantitative analysis of oxygen in the iron-nickel matrix of the Santa Catherina iron meteorite has been accomplished by using an electron microprobe with dispersive x-ray optics and by applying theoretically calculated corrections to the observed intensity ratios. Microvolume analyses and two-dimensional scanning images in OKagr, FeLagr, and NiLagr x-radiation show that the high nickel phase of the meteorite has been oxidized while the low nickel phase has remained unoxidized.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)