Grunerite from the Shinyama ore deposit, Kamaishi mine, Japan.

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Most of the clinopyroxene in the clinopyroxene skarn containing the 4D copper orebody of the Shinyama deposit was altered to Ca-amphibole and cummingtonite-grunerite owing to late-stage T decrease. Microprobe analyses indicate that most of the amphibole is cummingtonite-grunerite, generally considered rare in skarns, and that the Mg/(Mg + Fe) mole fractions of Ca-amphibole and cummingtonite-grunerite are 0.24-0.38 and 0.27-0.33, respectively. A zonal arrangement is observed from limestone to igneous rock: cummingtonite-grunerite skarn, Ca-amphibole skarn, (clinopyroxene skarn) and garnet skarn. This zonal arrangement is attributed to the increase of XCO2 towards the limestone.-L.C.C.

本文言語English
ページ(範囲)517-528
ページ数12
ジャーナルCanadian Mineralogist
21
3
出版ステータスPublished - 1983 1 1
外部発表はい

ASJC Scopus subject areas

  • Geochemistry and Petrology

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