By Loren W. Kroenke, James V. Eade
The Earth technology sequence of the Circum-Pacific investment for send time was once made to be had via Council for strength and Mineral assets (CPCEMR) the U. S. service provider for foreign improvement, the is designed to exhibit the result of geologie learn in USGS, the U. S. workplace of Naval examine (for HIG's and round the Pacific Basin. Topies of curiosity comprise 1982 work), the Australian improvement information framework geology, petroleum geology, tough minerals, Bureau, the Australian Bureau of Mineral assets geothermal power, environmental geology, volcanology, (BMR), the hot Zealand Ministry of overseas Affairs, oceanography, tectonics, geophysies, geochemistry, and the recent Zealand Departrnent of medical and business functions of renewable strength. The CPCEMR sup examine (DSIR), the hot Zealand Geological Survey, ports and publishes result of medical learn that might and the hot Zealand Oceanographic Institute (NZOI). strengthen the data of power and mineral source Coordination of this system used to be supplied by way of the U. S. capability within the circum-Pacific quarter. The Earth Sci Departrnent of kingdom and the South Pacific utilized Geo ence sequence is particularly designed to submit papers that technological know-how fee (SOPAC, previously the United comprise new facts and new maps, file on CPCEMR Nations-sponsored Committee for the Coordination of subsidized symposia and workshops, and describe the Joint Prospecting for Mineral assets in South Pacific result of onshore and marine geological and geophysieal Offshore components CCOP/SOP AC) in Fiji. Over one hundred fifty scien explorations.
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Additional info for Basin Formation, Ridge Crest Processes, and Metallogenesis in the North Fiji Basin
529-563. Circum-Pacific Council for Energy and Mineral Resources, 1981, Plate tectonic map of the circum-Pacific region, Southwest quadrant,l:lO,Ooo. , 1971, Propagation of P waves and Rayleigh waves in Melanesia: Structural implications: Journal of Geophysical Research,v. 76,p. 7217-7240. , G. Pascal, M. L. Isacks, and J. Oliver, 1973, Travel times of seismic waves between the New Hebrides and Fiji islands: A zone of lowvelocity beneath the Fiji Plateau: Journal of Geophysical Research, v. 78, p.
E. Jouannic, and P. , R Smith, and K Nemoto, 1990, Morphology and structure of the seafloor in the north central North Fiji Basin: this volume. W. Hawkins, 1978, Diffuse magnetic anomalies in marginal basins: Their possible tectonic and petrologic significance: Tectonophysics, v. 45, p. 323-339. Louat, R, 1982, Seismicite et subduction de la terminaison sud de I'arc insulaire des Nouvelles Hebrides, in Equipe de GeologieGeophysique du Centre ORSTOM de Noumea: Contribution a l'Etude Geodynamique du Sud-Ouest Pacifique.
The evidenee supporting this interpretation: (1) The are has rotated doekwise about 30° (Falvey, 1978) and the angle subtended by the triangular distribution of deep earthquakes is about 27°. (2) The deep seismieity extends aeross the entire basin, yet few events extend south ofthe Hunter-Kadavu Ridge (formed during the rotation). , a large portion of the slab is missing. However, the eombined lengths of the presently subdueting slab and the two horizontal deep segments are roughly equivalent to that expeeted at the present rate of eonvergenee sinee initiation of subduetion in earliest late Mioeene time.
Basin Formation, Ridge Crest Processes, and Metallogenesis in the North Fiji Basin by Loren W. Kroenke, James V. Eade