The high-K diorites and associated rocks of the Yeoval diorite complex, N.S.W

B. L. Gulson*

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Field relationships, petrography and chemistry (including selected trace elements) of an occurrence of high-K diorite from Yeoval, N.S.W., Australia, are described. The Yeoval diorite complex is a calc-alkaline suite of rocks ranging from gabbros through diorites to granites with an association of fine-grained types. The dominant type of diorite is high in potassium (>2% K2O) and their classification is based mainly on chemical data rather than conventional petrography. As such the high-K diorites may be correlated with the high-K andesites of orogenic regions. Comparisons with occurrences of high-K andesites are made. Data are presented to show that the gabbros and diorites are genetically related whereas no relation between the diorites and granites can be established.

Original languageEnglish
Pages (from-to)173-192
Number of pages20
JournalContributions to Mineralogy and Petrology
Volume35
Issue number3
DOIs
Publication statusPublished - Sep 1972
Externally publishedYes

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