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Uplift rates of the Loyalty Islands as Determined by 230Th/234U Dating of Raised Coral Terraces

Published online by Cambridge University Press:  20 January 2017

John F. Marshall  and
Jean Launay
John F. Marshall
Affiliation:
Bureau of Mineral Resources, Canberra, A.C.T., Australia and ORSTOM, B.P. A5, Noumea, New Caledonia France
Jean Launay
Affiliation:
Bureau of Mineral Resources, Canberra, A.C.T., Australia and ORSTOM, B.P. A5, Noumea, New Caledonia France
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Abstract

Uplift rates of the Loyalty Islands (S.W. Pacific) have been determined from 230Th/234U dating of raised coral terraces standing 2 to 7.5 m above sea level. The ages of the terraces on Ouvéa and Lifou correspond closely to previously documented periods of high sea levels at 120,000 and 180,000 yr BP. A +2-m terrace on Beautemps-Beaupré is considered to be beyond the range of the dating technique. The uplift rates of the various islands show a decrease toward the west. This lends support to the hypothesis of a lithospheric bulge of the leading edge of the Australian plate prior to its subduction at the level of the New Hebrides trench.

Type
Original Articles
Information
Quaternary Research , Volume 9 , Issue 2 , March 1978 , pp. 186 - 192
Copyright
University of Washington

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References

Baubron, J.S., Guillon, J.W., Recy, J., 1976. Geochronologie par la methode K/Ar du substrat volcanique de l'île Maré, archipel des Loyauté (Sud-Ouest Pacifique). Bull. B.R.G.M.. 3, 115 175.Google Scholar
Bernat, M., Launay, J., Recy, J., 1976. Datation à l'ionium de quelques formations coralliennes emergées de Nouvelle-Calédonie et des Îles Loyauté. Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences Serie D. 282, 9 12.Google Scholar
Bloom, A.L., Broecker, W.S., Chappell, J.M.A., Matthews, R.K., Mesolella, K.J., 1974. Quaternary sea level fluctuations on a tectonic coast: New 230Th/234U dates from the Huon Peninsula, New Guinea. Quaternary Research. 4, 185 205.Google Scholar
Chappell, J., 1974. Geology of coral terraces Huon Peninsula, New Guinea: A study of Quaternary tectonic movements and sea-level changes. Geological Society of America Bulletin. 85, 553 570.Google Scholar
Chappell, J., 1974. Relationship between sea levels, 18O variations, and orbital perturbations during the past 250,000 years. Nature (London). 252, 199 202.Google Scholar
Chevalier, J.P., 1968. Expedition française sur les récifs coralliens de la Nouvelle Calédonie. Ed. Fond. Singer Polignac. 1, 1 155.Google Scholar
Chevalier, J.P., 1973. Coral reefs of New Caledonia. Jones, O.A., Endean, R., Biology and Geology of Coral Reefs. Vol. 1, Academic Press, New York, 143 167.Google Scholar
Dubois, J., Launay, J., Recy, J., 1974. Uplift movements in New Caledonia-Loyalty Islands area and their plate tectonics interpretation. Tectonophysics. 24, 133 150.CrossRefGoogle Scholar
Dubois, J., Launay, J., Recy, J., Marshall, J., 1977. New Hebrides trench: Subduction rate from associated lithospheric bulge. Canadian Journal of Earth Sciences. 14, 250 255.Google Scholar
Haeberle, F.R., 1952. Coral reefs of the Loyalty Islands. American Journal of Science. 250, 656 666.Google Scholar
Ku, T.-L., Kimmel, M.A., Easton, W.H., O'Neill, T.J., 1974. Eustatic sea level 120,000 years ago on Oahu, Hawaii. Science. 183, 959 962.Google Scholar
Marshall, J.F., 1975. Uranium-series dating of corals from the Southwest Pacific. M.Sc. Thesis. Australian National University, Canberra. Google Scholar
Marshall, J.F., Thom, B.G., 1976. The sea level in the last interglacial. Nature (London). 263, 120 121.Google Scholar
Matthews, R.K., 1973. Relative elevation of late Pleistocene high sea level stands: Barbados uplift rates and their implications. Quaternary Research. 3, 147 153.Google Scholar
Mesolella, K.J., Matthews, R.K., Broecker, W.S., Thuber, D.L., 1969. The astronomical theory of climatic change: Barbados data. Journal of Geology. 77, 250 274.Google Scholar
Thomson, J., Walton, A., 1972. Redetermination of chronology of Aldabra Atoll by 230Th/234U dating. Nature (London). 240, 145 146.Google Scholar
Veeh, H.H., 1966. Th230/U238 and U234/U238 ages of Pleistocene high sea level stand. 71, 3379 3386.Google Scholar
Veeh, H.H., Chappell, J., 1970. Astronomical theory of climate change: Support from New Guinea. Science. 167, 862 865.Google Scholar