Evolution of low-Al orthopyroxene in the Horoman peridotite, Japan: an unusual indicator of metasomatizing fluids
Date
2003
Authors
Morishita, Tomoaki
Arai, Shoji
Green, David
Journal Title
Journal ISSN
Volume Title
Publisher
Oxford University Press
Abstract
Unusually alumina-poor orthopyroxene is found in a spinel peridolite from the Horoman Peridotite Complex, Japan. Al2O3, Cr2O3 and CaO contents in the low-Al orthopyroxene (named Low-Al OPX hereafter) are <0·25 wt%, <0·04 wt% and <0·3 wt%, respectively,
Description
Keywords
Keywords: chemical composition; mantle; metasomatism; orthopyroxene; peridotite; petrography; Japan Horoman Peridotite Complex; Low-Al orthopyroxene; Mantle wedge; Metasomatism
Citation
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Source
Journal of Petrology
Type
Journal article