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Determination of the age of the Australian continent by single-grain zircon analysis of Mt Narryer metaquartzite

✍ Scribed by Schärer, Urs; Alègre, Claude J.


Book ID
109738924
Publisher
Nature Publishing Group
Year
1985
Tongue
English
Weight
473 KB
Volume
315
Category
Article
ISSN
0028-0836

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Two populations of kimberlitic zircon are present in the Timber Creek kimberlites, Northern Territory. Laser‐ablation ICP‐MS U–Pb dating yields an age of 1483 ± 15 (2σ) Ma for the main group and an age of 179 ± 2 Ma for the other group. This distinction of two age groups is strongly supported by Hf