Time differences within a calc-alkaline association

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1972 Germany, Australia English Publisher:Springer Science and Business Media LLCJournal:Contributions to Mineralogy and Petrology, volume 36, pages 19-26 (issn: 0010-7999, eissn: 1432-0967,

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Authors: Gulson, B. L.; Bofinger, V. M.;

doi: 10.1007/bf00372831

Time differences within a calc-alkaline association

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Abstract

A Strontium isotope study of a high-K diorite complex at Yeoval, N.S.W. (Australia) points to clear time differences (40 m.y.) between the diorite suite (gabbro-diorite-grano-diorite) and surrounding granites. Such a time interval, in association with other data, precludes a genetic relationship between these rock groups whereas the data support a common origin for the diorite suite and associated andesitic volcanics. The low (0.705) initial Sr ratios for the diorite suite and volcanics are similar to those of other diorite and andesite occurrences.

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Germany, Australia

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Keywords

Geophysics, Geochemistry and Petrology, 550.geology, 1906 Geochemistry and Petrology, 1908 Geophysics, Article

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