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Arc Obduction and Polyphase Mineral Plumbing System in the New Guinea Highlands
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Citation (Style = APA)
(1997). Arc Obduction and Polyphase Mineral Plumbing System in the New Guinea Highlands.
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Reference Manager (RIS)
SpreadSheed (CSV)
(1997). Arc Obduction and Polyphase Mineral Plumbing System in the New Guinea Highlands.
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: The Australasian Institute of Mining and Metallurgy
Pages: 2
Publication Date:
Jan 1, 1997
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Abstract
Abstract
| ABSTRACT' Mainland Papua New Guinea is formed of a microcontinental / island arc system (?Eocene - latest Oligocene Sepic arc) which in Middle to Late Miocene times was obducted over the northward- moving Australian plate. The sedimentary and volcanic units of this system form part of the Wogamush Group (Aure beds, Mena beds, Omaura Formation, Movi beds, Wogamush beds, Wogamush Formation. Nansananka Conglomerate and other correlates in- eluding cale-alkaline volcanics and carbonate beds). This Sepic event was followed in Pliocene-Present times by the obduction of the Finisterre-Adelbert-Oenake fore-arc or possibly oceanic plateau. Obduction of the Sepic arc produced crustal thickening |
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