Electron petrography of high-temperature oxidation in olivine from the Rhum Layered Intrusion
- 1 June 1979
- journal article
- Published by Mineralogical Society in Mineralogical Magazine
- Vol. 43 (326) , 293-296
- https://doi.org/10.1180/minmag.1979.043.326.12
Abstract
Summary: Electron-microscope observations of the oxidation products of olivine suggest that oxidation results in the formation ofplatelets of an ‘oxidized olivine’ phase, which has a superstructure of the olivine structure. Subsequently this intermediate phase breaks down by a cellular decomposition process to a eutectoidal intergrowth of magnetite and pyroxene. This intergrowth is responsible for the dendritic magnetite inclusions commonly observed in some olivines from Rhum.Keywords
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