Basement/cover relations and a Silurian, I-type intrusive from the Cobar Lucknow area, Cobar, New South Wales

R. A. Glen, G. L. Lewington, S. E. Shaw

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    The Wild Wave granodiorite is intrusive into the Cambro-Ordovician Girilambone group and is nonconformably overlain by the Meryula formation of Early Devonian age. It gives a biotite Rb/Sr age of 418 + or - 2 m.y. and an initial 87Sr/86Sr ratio of 0.7051 + or - 0.0002. The magma is inferred to have been derived from mafic rocks in the lower crust.-N.C.N.S.

    Original languageEnglish
    Pages (from-to)25-32
    Number of pages8
    JournalJournal & Proceedings, Royal Society of New South Wales
    Volume116
    Issue number1-2
    Publication statusPublished - 1983

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