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| 324--340 (1970) The Volcanoes and Caldera of Talasea, New Britain: Mineralogy G A ~ Y G. LowDm~ Department...94720 Received February 3, 1970 Abstract. The Talasea Peninsula is composed of a chain of Quaternary volcanoes...whose lavas range from basalt to rhyolite. The peninsula is situated in an orogenic environment and the...Pacific rim. The most distinctive feature of the Talasea series is absolute iron enrichment in some lavas...Introduction The Talasea Peninsula is l o c a t e d on t h e n o r t h coast of t h e island of New Britain, p a |
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| by Springer-Verlag 1979 Magma Genesis in the New Britain Island-Arc: Constraints From Nd and Sr Isotopes...selected suite of fresh volcanic rocks from the New Britain island arc has been analyzed for 143Nd/144Nd...altered mid-ocean ridge-type basalt, but the New Britain magma source appears homogeneous with little...mantle inhomogeneity. Trace element patterns in New Britain lavas are not consistent with Nd isotope data...element models of magma genesis. Mafic lavas from New Britain and other island arcs have anomalously high Sr/Nd |
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| within the phenocrysts. In addition, some additional new chemical and mineralogical data are presented (Table...compositions in basalts and andesites of the Talasea Peninsula, New Britain. Kuno (1955) reported volcanic clinopyroxenes...features are described by Lowder (1970) in the Talasea basalts and andesites. As the groundmass chemistry...Attempts to use the reactions; CaA12SiO6 + S i O 2 (glass) ~ CaAlzSi20 8 Tongan Andesites and Dacites,...andesite (sample HH1) and 1/3 Fe30 4 + SiO 2 (glass) ~ FeSiO 3 + 1/6 02 (gas) have proved unsatisfactory |
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| be built on Vulcan Island, west side of Rabaul Caldera, Papua New Guinea. The island was known to rise...the 1937 eruption of Vulcan, Rabaul Caldera, Papua New Guinea. Historical Unrest at Large Calderas of...157 Contents VII Region 4: New Zealand, Tonga, and Kermadec Islands 167 New Zealand Haroharo/Okataina...190 Niuafo'ou 193 Region 5: Melanesia 197 Papua New Guinea St. Andrew Strait 198 Karkar 201 Long Island/Lake...Unnamed, near Esa' Ala, D'Entrecasteaux Islands 241 New Hebrides Gaua Island 245 Aoba 248 Ambrym 251 Region |
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| EDITOR 1979 PRINCETON UNIVERSITY PRESS PRINCETON, NEW JERSEY Iren? University Lihrdry PETERBOROUGH, ©NT...Published by Princeton University Press, Princeton, New Jersey In the United Kingdom: Princeton University...book This book has been composed in Monophoto Times New Roman Clothbound editions of Princeton University...America by Princeton University Press. Princeton, New Jersey The appearance of the code at the bottom of...Clearance Center, Inc., P.O. Box 765, Schenectady, New York 12301, for copying beyond that permitted by |
