 | | Journal (article/letter/editorial) | | AUCKLAND, NEW ZEAIAJSD.—The following particulars of the geology of Auckland, New Zealand, may be of...his survey and a geological map of the Auckland district, he chose the southern portion of the province...province south of Auckland, extending as far as Lake Taupo and the Tongariro Volcano, the boundaries between...probably of the whole of the northern island of New Zealand, is the absence of the primitive, plutonic, and...at Taupo, on the Hauraki Gulf. As no fossils have yet been found in this formation in New Zealand, it |  | | Journal (article/letter/editorial) | | Some New Zealand Volcanoes: Discussion Author(s): Leonard Darwin, Tempest Anderson, A. E. Kitson and...and tools to increase productivity and facilitate new forms of scholarship. For more information about...subject to http://about.jstor.org/terms SOME NEW ZEALAND VOLCANOES?DISCUSSION. 23 near Panui and another...together by a swampy stream. To the shore of the lake descend on the western slopes gently inclined scoria...most of these are fronted by steep precipices of obsidian, so that the interior of the island is accessible |  | | Journal (article/letter/editorial) | | mineral samples from eruptive products from Taupo volcano, New Zealand, to investigate how the host magmatic...kyr of quiescence following the Oruanui eruption, Taupo erupted three small volume (~0.1 km3) dacitic pyroclastic...of Wellington, P.O. Box 600, Wellington 6140, New Zealand eruption of 25 rhyolitic units starting at ~12...system. The dacites reflect the first products of a new silicic system, as most of the Oruanui magmatic root...stabilisation and maturation of a new, probably unitary, silicic mush system. This new mush system was closely |  | | Journal (article/letter/editorial) | | VOLCANOES OF NEW ZEALAND E. S. MOORE State College,Pennsylvania The northern island of New Zealand has, at...guide living near Mount Tarawera, who said, "New Zealand has been turned over and over." The active volcanoes...he FIG. I.-Map volcanoes. of North Island, New Zealand, showing the zones of active calls the "Maori"... Z., 1908), p. 9. THE ACTIVE VOLCANOES OF NEW ZEALAND 695 lines are supposed to cross the " Maori"...from the great Mount Egmont through the Auckland district, where over sixty craters, mostly of small magnitude |  | | Journal (article/letter/editorial) | | Quaternary Pumice Ash in the Taupo Area, New Zealand by A. EWART New Zealand Geological Survey, Department...Lower Null, New Zealand ABSTRACT Systematic mineralogical and chemical study of the younger Taupo volcanic...ash showers, collected from the Terraces Quarry, Taupo, has enabled the showers to be grouped into ten...attributed to progressive volatile loss. In the large Taupo (3) and Waimihia (15) deposits, there was a rapid...Comparison is made between the mineralogy of the Taupo rhyolitic glasses and recently published work on |  | | Journal (article/letter/editorial) | | Some New Zealand Volcanoes Author(s): J. Mackintosh Bell Source: The Geographical Journal, Vol. 40, No...and tools to increase productivity and facilitate new forms of scholarship. For more information about...subject to http://about.jstor.org/terms SOME NEW ZEALAND VOLCANOES.* By J. MACKINTOSH BELL. Introduction...remote days of geological time that we know of in New Zealand these Southern Pacific islands have been scarred...and torn by earthquake. Volcanic fires rose from New Zealand's earliest land, and like beacons have never |  | | Report (issue) | | tga tpa tpa Deer Hill hga 38º15'S MaC 400 Taupo Fault Belt tga 30 0 col 38°30'S rh3 hga tpf...Island of New Zealand. The solid red line represents the approximate location of the Taupo Volcanic Zone...Caldera; TFB, Taupo Fault Belt; TRB, Taupo-Reporoa Basin; TVC, Taupo Volcanic Center; TVZ, Taupo Volcanic...Zone, Kiwitahi Volcanics, and Hauraki Rift are pre-Taupo Volcanic Zone surface manifestations of arc-related...tectonic processes. Base from Land Information New Zealand, 1:50,000: BF36 Atiamuri, 2018; BF37 Waiotapu |  | | Journal (article/letter/editorial) | | Collector's View of NEW ZEALAND MARK C. B L A Z E K New Mexico Tech Socorro, New Mexico 87801 Introduction...would you ex pect to find in a country like New Zealand? Dia monds, rubies, emeralds, and opals? Perhaps...mountains of coal. Much volcanic rock such as obsidian, pumice, and granite. Or possibly you might associate...associate that everelusive mineral, gold, with New Zealand. The point is simply this: the average American...general location and variety of minerals found in New Zealand. It is not intended to be detailed and exhaustive |  | | Journal (article/letter/editorial) | | Rhyolitic Volcanic Rocks, Central North Island, New Zealand Total Rock and Residual Liquid Data A. E W A... Rhyolite Geochemistry, Central North Island, New Zealand 77 eruptive histories. Finally, an approach...referred to in this account, is given in Fig. 1. The Taupo Volcanic Zone is dominated by rhyolitic volcanism...has been concentrated in four main centres, the Lake Taupo Volcanic Centre, Mokai Ring Structure, Rotorua...blanket the whole region. These were erupted mainly from the northeastern part of the Lake Taupo Volcanic Centre |  | | Journal (article/letter/editorial) | | Springer-Verlag 1975 Quaternary Acid Magma in New Zealand A. E w a r t * , W. Hildreth, and I. S. E. Carmichael...1975 Abstract. The voluminous Pleistocene--Recent Taupo rhyolites typically contain phenocrysts of plagioclase...and fluid dynamic behavior of the magmas. For the Taupo rhyolites, it is suggested that the critical size...Introduction The central volcanic region of the N o r t h Island of New Zealand is characterized b y voluminous...(lying in the northeastern zone of the volcanic region, Fig. 1) are of particular interest as m a n y |  | | Journal (article/letter/editorial) | | Belgium GENESIS OF LAVAS OF THE TAUPO VOLCANIC ZONE, NORTH ISLAND, NEW ZEALAND J.W. COLE Geology Department...University of Wellington, Private Bag, Wellington (New Zealand) (Revised version accepted January 15, 1981)...1981. Genesis of lavas of the Taupo Volcanic Zone, North Island, New Zealand. J. Volcanol. Geotherm. Res...Res., 10: 317--337. The Taupo Volcanic Zone forms part of the Taupo-Hikurangi subduction system, and comprises...comprises five volcanic centres: Tongariro, Taupo, Maroa, Okataina and Rotorua. Tongariro Volcanic Centre |  | Liu, Yang, Anderson, Alfred T., Wilson, Colin J. N., Davis, Andrew M., Steele, Ian M. (2006) Mixing and differentiation in the Oruanui rhyolitic magma, Taupo, New Zealand: evidence from volatiles and trace elements in melt inclusions. Contributions to Mineralogy and Petrology, 151 (1) 71-87 doi:10.1007/s00410-005-0046-3 | Journal (article/letter/editorial) | | differentiation in the Oruanui rhyolitic magma, Taupo, New Zealand: evidence from volatiles and trace elements...Oruanui magma that erupted at 26.5 ka from Taupo Volcano, New Zealand. The 530 km3 (void-free) of material...University of Auckland, Private Bag 92019, Auckland, New Zealand A. M. Davis Department of Geophysical Sciences...systematic with stratigraphy (e.g., Bandelier Tuff, New Mexico: Smith and Bailey 1966; Bishop Tuff, California:...setting and history Taupo volcano is a vigorously active caldera center in the central Taupo Volcanic Zone |  | | Journal (article/letter/editorial) | | JANUARY-FEBRUARY,1953 ROCK ALTERATION NEW A. NO. 1 AT WAIRAKEI, ZEALAND. STEINER. CONTENTS. PAGE Abstract...milesin a north-north-easterly directionfrom Lake Taupo. 2 •1. STEINER. Thegeology ofthisregion wasdescribed...maybe valid to comparethe alteredrockswith an obsidian and ignimbriteoccurringin the neighbouring areaand...701 ft. No. 4. Fresh obsidian from Whakapoungakau Mountain, east side Lake Taupo (Grange 7). No. 5. Fresh...extends down to the interface. NEW ZEALAND GEOLOGICALSURVEY, WELLINGTON,NEW ZEALAND, Oct. $, 1952. BIBLIOGRAPHY |  | | Journal (article/letter/editorial) | | ignimbrite, fall deposit, Yellowstone, Long Valley, Taupo All interpretations of the lead-in to and consequences...studies with which I am most familiar, from New Zealand and the United States, to illustrate three points...PB92019, Auckland Mail Centre, Auckland 1142, New Zealand E-mail: cjn.wilson@auckland.ac.nz PP. 29–34...is quenched to a glassy solid, such as in the obsidian carapace to many rhyolite lava domes or the pumices...Effusive activity yielding a lava dome (Pohaturoa, New Zealand). (B) Fall activity from a buoyant plume giving |  | | Book | | sidi0000unse ADVANCES IN OBSIDIAN GLASS STUDIES ADVANCES IN OBSIDIAN GLASS STUDIES Archaeological...Edited by R. E. TAYLOR NOYES PRESS PARli. RIDGE, NEW JEllSEY Copyright © 1976 by R. E. Taylor Library...States by NOYES PRESS Noyes Building Park R idge, New Jersey 07656 Library o f Congress Cataloging in...Publication Data Main entry under t itle: Advances in obsidian glass studies. Bibliography : p. 1ndudes index...and Rainer Berger ~ J;!rdration Rate Studies (V Obsidian Hydration Rate Determinations on Chemically Characterized |  | Graham, Ian J, Gulson, Brian L, Hedenquist, Jeffrey W, Mizon, Karen (1992) Petrogenesis of Late Cenozoic volcanic rocks from the Taupo Volcanic Zone, New Zealand, in the light of new lead isotope data. Geochimica et Cosmochimica Acta, 56 (7) 2797-2819 doi:10.1016/0016-7037(92)90360-u | Journal (article/letter/editorial) | | volcanic rocks from the Taupo Volcanic Zone, New Zealand, in the light of new lead isotope data IAN J...Physical Sciences, PO Box 3 1 3 12, Lower Hutt, New Zealand %entre for Isotope Studies, Division of Exploration...range of volcanic rocks from the Taupo Volcanic Zone (TVZ), New Zealand. Combined geochemical and isotope...in the central North Island of New Zealand (Fig. 1) is a major region of extensional and subduction-related...1982; CONRAD et al., 1988). In this paper we present new Pb isotope data for a wide range of TVZ volcanic |  | | | | 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)'...ISLAND f Pq,1 Pt., 1~s II t I SOUTH ISLAND NEW ZEALAND +I s University College Cardiff Library...' _____ 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)'...ISLAND f Pq,1 Pt., 1~s II t I SOUTH ISLAND NEW ZEALAND +I s University College Cardiff Library...' _____ 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 | | Palmerston North, New Zealand JEROM LECONTRE Massey University, Palmerston North, New Zealand GERT LUBE Massey...Massey University, Palmerston North, New Zealand MURRAY M. MCCLINTOCK Otago University and Volcanic...Limited, Dunedin, New Zealand BOB STEWART Massey University, Palmerston North, New Zealand JAMES D. L. WHITE...WHITE Otago University, Dunedin, New Zealand Technikal editor: OLGA PIROS, DEZSŐ SIMONYI DTP: DEZSŐ...volcano in the Central North Island of New Zealand. Tama maar lake is in the foreground. Back page of cover: |  | | Book | | archaeological research in New Zealand has undergone something of a revolution. Using new techniques and drawing...disciplines, archaeo logists are now piecing together a new and far more complex picture of the human occupation...years. Until then it was popularly believed that New Zealand had in the past been settled by two waves of...itinerant hunters and gatherers whose impact on the new land was to have far-reaching effects. By 500 years...arrival of Europeans 200 years ago. Unearthing Neiv Zealand tells the fascinating story of this country's unique |  | | Book | | hydrothermal alteration convert the glass to aggregates of new mineral phases such as clays, zeolites, sericite...bladed crystals (spinifex texture). Silicic glass (obsidian) is usually transparent, and pale to dark grey...followed by precipitation from solution of finegrained new minerals. In many cases, silicic glass in ancient...that contains isolated spherulites (spherulitic obsidian) (44.3). Perlitic fractures and a variety of quench...domains between spherulites in partially devitrified obsidian. Although most commonly found in hydrated silicic |  | | Report (volume) | | Vulcan Island, west side of Rabaul Caldera, Papua New Guinea. The island was known to rise, tilt, and subside...the 1937 eruption of Vulcan, Rabaul Caldera, Papua New Guinea. Historical Unrest at Large Calderas of...Large Quaternary Calderas: Details of Unrest 81 Region 1: Mediterranean 82 Italy Vulsini (Latera/Conca...Vecchia 124 Greece Santorini (Thira) 129 Nisyros 135 Region 2: Africa 138 Ethiopia Fantale 139 K'one (Gariboldi)...Deriba 152 Region 3: Indian Ocean 156 Reunion Island Piton de la Fournaise 157 Contents VII Region 4: New |  | | Book | | Location No. Luh ComVW 1. © “~~ — e PROCKE: NEW“ZEASARDIMBEBTING: a +Brice: COMRONW BAT. Te Man NG...Weillligion fest: April 1°55 VOLUME PROCEEDINGS NEW ZEALAND EIGHTH OF MEETING COMMONWEALTH MINING AND...Dunedin New Zealand VI1I1 Copyright by the University of Otago and the Contributors Printed in New Zealand...EIGHTH COMMONWEALTH METALLURGICAL NEW Dr G, J. Williams ZEALAND MINING AND CONGRESS ORGANISING...visitors attended the Wellington sessions in New Zealand and the rest came from more distant countries |  | | Report (issue) | | from Battleship Rock, Jemez Springs quadrangle, New Mexico__________________________________________________...conchoidal fracture, superficially resembling a typical obsidian ___ Photomicrograph of thin section of same obsidianlike...Photomicrograph of glassy ash -flow tuff from Arequipa region, Peru. showing; wide range in the size of the shards...Photomicrograph of glassy welded tuff from Arequipa region, Peru, showing lack of characteristic shard forms...Photomicrograph of glassy welded tuff from Lake Toba region, North Sumatra, with compressed shards molded |  | | Report (issue) | | -------C2 Physiographic map of the Island Park region ___________________ ---- ___ --------------------------------3...-----------------------------11 Photograph of obsidian agglomerate at top of rhyolite lava flow_____...caused by pressure decrease during ascent in a region of abnormally high thermal gradient. INTRODUCTION...is shown on 1: 62,500 topographic maps (Buffalo Lake quadrangle in the north, Warm River Butte quadrangle...0 10 MILES 2.-Physiography of the Island Park region. The park, which is 18 miles across, is defined |
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Rangatira Point, Lake Taupo, Taupo District, Waikato Region, New Zealand