A cordierite-bearing granite suite from the New England Batholith, N.S.W., Australia

R. H. Flood*, S. E. Shaw

*Corresponding author for this work

    Research output: Contribution to journalArticle

    61 Citations (Scopus)

    Abstract

    A suite of cordierite-bearing biotite-muscovite intrusive granites in the New England Batholith, New South Wales, outcrops over 3400 sq km and is the largest reported occurrence of granites of this type. Compositionally the granites are close to the low temperature minimum and display only limited chemical variation. The corundum-normative nature of the granites suggests a pelitic sedimentary parentage. Cordierite with an average 100 Mg/ Mg + Fe of 55 occurs as large tabular crystals and is considered to be a refractory phase brought up from the zone of partial melting. The presence of cordierite and the absence of garnet in these granites suggests a partial melting at a pressure maximum of 6 kb, equivalent to 22 km depth.

    Original languageEnglish
    Pages (from-to)157-164
    Number of pages8
    JournalContributions to Mineralogy and Petrology
    Volume52
    Issue number3
    DOIs
    Publication statusPublished - Sep 1975

    Keywords

    • mineral resource
    • temperature minimum
    • limited chemical
    • partial melting
    • pressure maximum

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