Electron Microprobe Analysis of Oxygen in an Iron Meteorite

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Science  12 Feb 1965:
Vol. 147, Issue 3659, pp. 734-736
DOI: 10.1126/science.147.3659.734


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 OKα, FeLα, and NiLα 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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