 | | Journal (article/letter/editorial) | | isotope evidence for the formation of silicic Kermadec island arc and Havre–Lau backarc magmas by fractional...altered basalt and sedimentary material. Andesitic to rhyolitic samples from two Kermadec island arc volcanoes...high-temperature hydrothermally metamorphosed rocks in the island arc crust or the backarc crust can be ruled out...magmas in the arc and backarc region. Neither the island arc dacites and rhyolites nor the backarc andesites...contributions of hydrous fluids from subducted altered basalt/serpentinite with little sediments. © 2011 Elsevier |  | | Report (chapter) | | Felsic volcanism in the Kermadec arc, SW Pacific: crustal recycling in an oceanic setting I A N E . M...University of Auckland, PB 92019, Auckland, New Zealand (e-mail ie.smith@auckland.ac.nz) 2present address:...North, New Zealand 4School of Science and Technology, University ofWaikato, PB 3105, Hamilton, New Zealand...dacites and rhyolites relatively uncommon. The Kermadec arc is an intraoceanic convergent system in the...setting, felsic magmatism is widespread. In the Kermadec Islands, Macauley Volcano is a basaltic volcano that |  | | Journal (article/letter/editorial) | | considered to have originated along the Tonga-Kermadec ridge on the basis of available seismic and compositional...from a submarine eruption in the South Sandwich Islands. The arrival of this pumice in Tasmania and along...Coombs & Landis (1966) recorded its arrival in New Zealand in late 1964 and early 1965. The pumice fragments...of marine life between islands. The purpose of this paper is to describe a new raft of drift pumice which...identical pumice washed ashore on the western islands of Fiji during the cyclone of March, 1965, was |  | | Report (chapter) | | Wellington. New Zealand J. C. SCHOFIELD New Zealand Geological Survey, Box 61.012, Otara, New Zealand G. G...421 421 421 421 422 422 Tonga, Kermadec and Lau are groups of islands flanked by oceanic trenches centrally...Zones: four structural zones are suggested for this 'island arc'. From west to east they are the Lau Ridge...forming the Colville Ridge, Havre Trough, Kermadec Ridge and Kermadec Trench respectively (Fig. 2). The last...eastern margin of the 'island arc' may be taken at the outer edge of the Tonga-Kermadec Trench, whilst the |  | | Journal (article/letter/editorial) | | The Pleistocene-Recent Tonga-Kermadec Arc Lavas: Interpretation of New Isotopic and Rare Earth Data in...typescript accepted 2 December 1986) ABSTRACT New REE data, and new Nd, O, Sr, and Pb isotopic data are presented...differences in chemistry between the Tonga and Kermadec arc segments. The mechanism of LILE enrichment...zone, involving induced convection. The back-arc island of Niua fo'ou is geochemically quite distinct from...Pleistocene-Recent volcanoes erupted along the linear Kermadec-Tonga arc (Fig. 1) constitute a clear example |  | Price, Richard, Spandler, Carl, Arculus, Richard, Reay, Anthony (2011) The Longwood Igneous Complex, Southland, New Zealand: A Permo-Jurassic, intra-oceanic, subduction-related, I-type batholithic complex. Lithos, 126 (1) 1-21 doi:10.1016/j.lithos.2011.04.006 | Journal (article/letter/editorial) | | s The Longwood Igneous Complex, Southland, New Zealand: A Permo-Jurassic, intra-oceanic, subduction-related...Engineering, University of Waikato, Hamilton, New Zealand Earth and Environmental Sciences, James Cook...Department of Geology, University of Otago, Dunedin, New Zealand b c a r t i c l e i n f o Article history:...magmatism New Zealand a b s t r a c t The Longwood Igneous Complex (LIC) is located in Southland, New Zealand...magma, derived by fractional crystallisation from basalt, which was intruded into a hot but solid or near |  | Waight, Tod E., Troll, Valentin R., Gamble, John A., Price, Richard C., Chadwick, Jane P. (2017) Hf isotope evidence for variable slab input and crustal addition in basalts and andesites of the Taupo Volcanic Zone, New Zealand. Lithos, 284. 222-236 doi:10.1016/j.lithos.2017.04.009 | Journal (article/letter/editorial) | | basalts and andesites of the Taupo Volcanic Zone, New Zealand Tod E. Waight, Valentin R. Troll, John A. Gamble...basalts and andesites of the Taupo Volcanic Zone, New Zealand, LITHOS (2017), doi:10.1016/j.lithos.2017.04...andesites of the Taupo Volcanic Zone, IP T New Zealand NU Jane P. Chadwickf SC R Tod E. Waighta...University of CE P Wellington, P.O. Box 600, New Zealand. d) School of Biological, Earth and Environmental...University of Waikato, Private Bag 3105, Hamilton, New Zealand f) Science Gallery, Trinity College Dublin, Pearse |  | | Journal (article/letter/editorial) | | strike of the subducted Pacific plate beneath Tonga-Kermadec shows evidence for a high-velocity layer of crustal...has been transformed to eclogite, but in Tonga-Kermadec the eclogite must have high seismic velocity and...explain both the high-velocity layer beneath Tonga-Kermadec and the low-velocity layer beneath Japan as being...subducting beneath Japan and that beneath Tonga-Kermadec. 1. Introduction Subduction zones are the sites...petrofabric studies of a suite of rocks from the Bay of Islands ophiolite, Newfoundland [13] and in the Semail |  | | Journal (article/letter/editorial) | | young island arc crust observed in gabbroic to tonalitic xenoliths from Raoul Island, Kermadec Island...differentiation O isotopes a b s t r a c t We provide new geochemical and O isotope data for minerals and whole...gabbroic to tonalitic xenoliths from Raoul Island in the Kermadec island arc. The plagioclase, olivine and...compositions are similar to those observed in the Raoul Island lavas supporting a close relationship of the...spreading axes reflecting higher water contents in the island arc magmas. Incompatible element and O isotope |  | | Journal (article/letter/editorial) | | UNIVERSITY OF WELLING TON, P.O. BOX 600, WELLINGTON, NEW ZEALAND 'RESEARCH SCHOOL OF EARTH SCIENCES, AUSTRALIAN...UNIVERSITY, CANBERRA, A.C.T. 0200, AUSTRALIA 'NEW ZEALAND OCEANOGRAPHIC INSTITUTE, NATIONAL INSTITUTE OF...WELLINGTON, NEW ZEALAND 'DEPARTMENT OF GEOLOGY, UNIVERSITY OF AUCKLAND, PRIVATE BAG 92-019, AUCKLAND, NEW ZEALAND...relative to mantle. Isotopic measediments from the Kermadec-Hikurangi Margin volcanic arc surements of Pb...end of the oceanic Kermadec Trough-Ngatow Basin (^Sr/^Sr^ 0-70255; zNi=+9-3; Island Arc show unusual and |  | Keith, Manuel, Haase, Karsten M., Klemd, Reiner, Schwarz-Schampera, Ulrich, Franke, Henrike (2017) Systematic variations in magmatic sulphide chemistry from mid-ocean ridges, back-arc basins and island arcs. Chemical Geology, 451. 67-77 doi:10.1016/j.chemgeo.2016.12.028 | Journal (article/letter/editorial) | | chemistry from mid-ocean ridges, back-arc basins and island arcs Manuel Keith, Karsten M. Haase, Reiner Klemd...chemistry from mid-ocean ridges, back-arc basins and island arcs, Chemical Geology (2016), doi:10.1016/j.chemgeo...from IP T mid-ocean ridges, back-arc basins and island arcs SC R Manuel Keith a*, Karsten M. Haase b...magmatic sulphides from mid-ocean ridge, back-arc and island arc magmatic systems. Iron-Ni-rich monosulphide...setting and sample localities NU 2 SC R and island arc magmatic systems. MA The samples presented |  | | Journal (article/letter/editorial) | | (REE)–SiO2 variations in felsic liquids generated by basalt fractionation and amphibolite melting: a potential...hornblende-present basalt fractionation, and mid to upper crustal hornblende-absent basalt fractionation the...(Cl/Co * 1 to 0.2). Lower crustal hornblendebearing basalt fractionation should yield roughly constant REE...* 1.2). Mid to upper crustal hornblende-bearing basalt fractionation should yield steadily increasing...slightly enriched (Cl/Co * 1 to 2). Hornblende-absent basalt fractionation should yield steadily increasing |  | | Journal (article/letter/editorial) | | 1, 1976 Revised version received May 25, 1976 Island arc and continental margin (i.e. western Americas)...chemistry and mineralogy between continental margin and island arc lavas, although small consistent differences...Central, and South Americas) and those o f the island arc systems o f the northern and western Pacific...Clearly, an important distinction of the orogenic basalt-andesite type (which may well have genetic significance)...classification used for the statistics compiled: Basalt: Absence of Ca-poor pyroxene as a phenocryst, mic'rophenocryst |  | | Journal (article/letter/editorial) | | equilibrium control, wherein the appearance of a new liquidus mineral phase causes a fractionating magma... 175 Volcano Arc Group Curtis Kermadec II Macauley Kermadec fl Epi Hew Hebrides Veniaminof...Bismarck II Tongoa New Hebrides II Shfkotsu Japan [ / Usu Japan II New Hebrides II Manam...Deception South Shetland Garove Bismarck II Raoul Kermadec II Tofua Tonga II I 1 i I Vanua Lava...Usu Vanua Lava Manam Batur Oto Deception Garove Raoul Tofua Medicine L a k e Mendeleev Hargy Ceboruco |  | | Journal (article/letter/editorial) | | Mineralogy and Geochemistry of the Younger Volcanic Islands of Tonga, S.W. Pacific by A. EWART, W. B. BRYAN...Tongan Islands comprise a double island chain, and lie at the northern end of an active island arc extending...extending NNE from northern New Zealand. The eastern chain are limestone covered, with an underlying pre-Upper...pre-Upper Eocene gabbro-basalt-andesite series exposed on one island. The active volcanoes, the subject...subject of this paper, form the western island chain, and lie some 100 km above a westward dipping seismic |  | | Journal (article/letter/editorial) | | analysis system: deciphering mean compositions of island and continental arc magmas, and influence of the...analysis system: deciphering mean compositions of island and continental arc magmas, and influence of the...analysis system: deciphering mean compositions of island and continental arc magmas, and influence of the...is to determine the mean compositions of modern island and continental arcs, along with dispersion estimates...calculated from the available combined data from all island or continental arcs. However, it is mandatory to |  | Price, Richard C., Turner, Simon, Cook, Craig, Hobden, Barbara, Smith, Ian E.M., Gamble, John A., Handley, Heather, Maas, Roland, Möbis, Anja (2010) Crustal and mantle influences and U–Th–Ra disequilibrium in andesitic lavas of Ngauruhoe volcano, New Zealand. Chemical Geology, 277 (3) 355-373 doi:10.1016/j.chemgeo.2010.08.021 | Journal (article/letter/editorial) | | disequilibrium in andesitic lavas of Ngauruhoe volcano, New Zealand Richard C. Price a,⁎, Simon Turner b, Craig Cook...University of Waikato, Hamilton, PB3105, Hamilton, New Zealand GEMOC Key Centre, Macquarie University, North...Environment, University of Auckland, PB2019 Auckland, New Zealand d Department of Geology, National University...Massey University, PB11222, Palmerston North, New Zealand b c a r t i c l e i n f o Article history:...isotopes Subduction-related magmatism Ngauruhoe New Zealand a b s t r a c t The andesitic volcano Ngauruhoe |  | Turner, Simon, George, Rhiannon, Jerram, Dougal A., Carpenter, Neil, Hawkesworth, Chris (2003) Case studies of plagioclase growth and residence times in island arc lavas from Tonga and the Lesser Antilles, and a model to reconcile discordant age information. Earth and Planetary Science Letters, 214 (1) 279-294 doi:10.1016/s0012-821x(03)00376-5 | Journal (article/letter/editorial) | | studies of plagioclase growth and residence times in island arc lavas from Tonga and the Lesser Antilles, and...dating methods. Two case studies are presented from island arc lavas that highlight such dichotomies. Plagioclase...time spent during entrainment and growth in the new magma prior to eruption. The 226 Ra-excesses were...cores during entrainment by subsequent injections of new magma. Because crystal growth, segregation and entrainment...storage in cumulates which are then incorporated into new magma batches. Plagioclase growth rates of 3^9U10313 |  | de Ronde, C. E. J., Hannington, M. D., Stoffers, P., Wright, I. C., Ditchburn, R. G., Reyes, A. G., Baker, E. T., Massoth, G. J., Lupton, J. E., Walker, S. L., Greene, R. R., Soong, C. W. R., Ishibashi, J., Lebon, G. T., Bray, C. J., Resing, J. A. (2005) Evolution of a Submarine Magmatic-Hydrothermal System: Brothers Volcano, Southern Kermadec Arc, New Zealand. Economic Geology, 100 (6) 1097-1133 doi:10.2113/gsecongeo.100.6.1097 | Journal (article/letter/editorial) | | l System: Brothers Volcano, Southern Kermadec Arc, New Zealand C. E. J. DE RONDE,† Institute of Geological...Nuclear Sciences, P.O. Box 31-312, Lower Hutt, New Zealand M. D. HANNINGTON, Department of Earth Sciences...Atmospheric Research, P.O. Box 14-901, Wellington, New Zealand R. G. DITCHBURN, A. G. REYES, Institute of Geological...Nuclear Sciences, P.O. Box 31-312, Lower Hutt, New Zealand E. T. BAKER, Pacific Marine Environmental Laboratory...Nuclear Sciences, P.O. Box 31-312, Lower Hutt, New Zealand J. E. LUPTON, Pacific Marine Environmental Laboratory |  | | Report (issue) | | _______________________________ 35 Hawaiian Islands.______________________________________________...University of Nevada, Rono. New Mexico. Prof. Stuart A. Northrop, University of New Mexico, Albuquerque. Oregon...IV; 21; 28, V; November 20, IV; 21. New Mexico: August 12, V. New York: January 21, V; August 16, V. North...shattered windows and damaged plaster walls. Along the New Madrid Fault line, thousands of people were awakened...awakened nearly all. Windows and dishes rattled. New Wells. Felt by nearly all. Dishes rattled. Vibration |  | | Journal (article/letter/editorial) | | PAPER Evolution of the Taupo Volcanic Center, New Zealand: petrological and thermal constraints from the...Taupo Volcanic Zone (TVZ) in the northern island of New Zealand is ideally suited for this integrated study...Volcanic Zone (TVZ), New Zealand The TVZ is located in the northern island of New Zealand (Fig. 1) amidst...with current rates of extension in the northern island at least 8 mm year-1 Contrib Mineral Petrol Fig... 1 Location map of the Taupo Volcanic Zone, New Zealand. A star marks the location of the primary outcrop |  | | Journal (article/letter/editorial) | | and CH, contents in gases produced along the New Zealand part of a convergent plate boundary W. F. GIGGENBACH...Geological and Nuclear Sciences, Lower Hutt, New Zealand %stitute of Geology and Mineralogy, Hiroshima...accepied in rev~~e~~~~ February 3, 1993) Abstract-New Zealand straddles an active tectonic boundary between...isotopic analyses of 140 samples from all over New Zealand, four major en~ronments can be distinguished:...geothermal activity over the center of the North Island. C/3He ratios there vary from |  | | Journal (article/letter/editorial) | | the older mafic sequence composed essentially of basalt/basaltic andesite lava flows and the associated...a convergent margin (arc) tectonic environment. Basalt/basaltic andesites are compositionally uniform...volcanic episodes namely, ophiolitic metavolcanics, island arc metavolcanics, Dokhan volcanics and alkaline...named as Old Metavolcanics (OMV; Stern, 1981). Island arc metavolcanics are known as Shadli metavolcanic...rhyolite and the associated pyroclastic with minor basalt (Eliwa et al., 2006 and references therein). The |  | | | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl.lfld I MY Secretar)'... ' r \ rr " WART ISLAND f Pq,1 Pt., 1~s II t I SOUTH ISLAND NEW ZEALAND +I s University College...' _____ TELE - . _, • The Geology of New Zealand Volume 2 •• J-----~---.. ~ ::,,::::j::~....Associate Editors: G. R. Stevens, M. T. Te Punga New Zealand Geological Survey, Department of Scientific and |  | | Book (volume) | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl.lfld I MY Secretar)'... ' r \ rr " WART ISLAND f Pq,1 Pt., 1~s II t I SOUTH ISLAND NEW ZEALAND +I s University College...' _____ TELE - . _, • The Geology of New Zealand Volume 2 •• J-----~---.. ~ ::,,::::j::~....Associate Editors: G. R. Stevens, M. T. Te Punga New Zealand Geological Survey, Department of Scientific and |
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