O isotope zoning in garnet and staurolite: evidence for closed- system mineral growth during regional metamorphism

M. J. Kohn, J. W. Valley, D. Elsenheimer, M. J. Spicuzza

Research output: Contribution to journalArticlepeer-review

89 Scopus citations

Abstract

Microanalysis of O isotope ratios has been made in traverses across two garnet crystals and one staurolite sample (all ~1 cm in diameter) from a metapelitic schist and across one garnet sample ~4.5 mm in diameter from an amphibolite from the Cordillera Darwin metamorphic complex, Tierra del Fuego, Chile. The data show that regional metamorphic garnet and staurolite can preserve prograde variations of O isotopes in amphibolite facies terranes. -from Authors

Original languageEnglish
Pages (from-to)988-1001
Number of pages14
JournalAmerican Mineralogist
Volume78
Issue number9-10
StatePublished - 1993

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