The age and distribution of the igneous rocks of Macquarie Island

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 spre...

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Bibliographic Details
Published in:Papers and Proceedings of The Royal Society of Tasmania
Main Authors: Duncan, RA, Varne, R
Format: Article in Journal/Newspaper
Language:English
Published: 1988
Subjects:
Royal Society of Tasmania
RST
Van Diemens Land
natural history
science
ecology
taxonomy
botany
zoology
geology
geography
papers & proceedings
Australia
UTAS Library
Macquarie Island
Online Access:https://eprints.utas.edu.au/13864/
https://eprints.utas.edu.au/13864/4/1988__Duncan_age_and_distribution.pdf
Description
Summary: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.

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