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The age and distribution of the igneous rocks of Macquarie Island

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Duncan, RA and Varne, R 1988 , 'The age and distribution of the igneous rocks of Macquarie Island' , Papers and Proceedings of the Royal Society of Tasmania, vol. 122, no. 1 , pp. 45-50 , doi: 10.26749/rstpp.122.1.45.

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Abstract

Basalts associated with the formation of the Macquarie Ridge have been radiometrically dated at between 9.7 Ma and 11.5 Ma, giving a Middle Miocene age in approximate agreement with the age indicated by fossils in intercalated sedimentary rocks but younger than suggested by the nearby sea-floor spreading anomaly pattern.

Item Type: Article
Authors/Creators:Duncan, RA and Varne, R
Keywords: Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, UTAS Library
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
ISSN: 0080-4703
DOI / ID Number: 10.26749/rstpp.122.1.45
Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
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