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Regional implications of U/Pb SHRIMP age constraints on the tectonic evolution of New Caledonia

Citation

Aitchison, JC and Ireland, TR and Clarke, GL and Cluzel, D and Davis, AM and Meffre, S, Regional implications of U/Pb SHRIMP age constraints on the tectonic evolution of New Caledonia, Tectonophysics, 299, (4) pp. 333-343. ISSN 0040-1951 (1998) [Refereed Article]

DOI: doi:10.1016/S0040-1951(98)00211-X

Abstract

U/Pb SHRIMP ages for zircons from plagiogranites indicate a Late Carboniferous age of formation for ophiolitic basement of the Koh terrane in the Central Chain Mountains of New Caledonia. Samples from ophiolites at Koh and Koua yielded ages of 302 ± 7 Ma and 290 ± 5 Ma, respectively. The similarity of these ages to those of plagiogranites in the Dun Mountain Ophiolite Belt/Maitai terrane of New Zealand, and the comparable structural positions of the two terranes, potentially constrain reconstructions of the Cretaceous SW Pacific margin. Detrital zircons from late Mesozoic sediments that overlap the Koh terrane also provide potential constraints on the location of New Caledonia prior to its break-up and dispersal from eastern Australia.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geology
Research Field:Tectonics
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Meffre, S (Dr Sebastien Meffre)
ID Code:15365
Year Published:1998
Web of Science® Times Cited:43
Deposited By:Earth Sciences
Deposited On:1998-08-01
Last Modified:2011-08-10
Downloads:0

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