 | | Report (chapter) | | 9, 2015 Taupo-Rotorua Depression: an ensialic marginal basin of North Island, New Zealand J. W. Cole...Cole SUMMARY: New Zealand lies on the boundary between the Pacific and Indian plates. In the vicinity of...form the Taupo-Hikurangi arc-trench system. The volcanic component of this system is the Taupo Volcanic...young (<50,000 yr) andesite-dacite arc, to the west of which is the Taupo-Rotorua Depression, a basin...last 0.6 Ma from the Rotorua, Okataina, Maroa and Taupo Volcanic Centres. Approximately 2 km 3 of high-alumina |  | | Journal (article/letter/editorial) | | Department, University of Otago, PO Box 56, Dunedin, New Zealand Institute of Geological and Nuclear Sciences...Wairakei Research Centre, Private Bag 2000, Taupo, New Zealand Received 28 June 2001; accepted 14 August...20-km3-breakout flood from intracaldera Lake Taupo following the 1.8-ka Taupo eruption. The proximal deposit is...we argue, with reference to deposits from the Lake Taupo breakout flood (Manville et al., 1999) that granular...1994b). 2. Taupo breakout flood deposits Emplacement of the voluminous and unwelded Taupo ignimbrite |  | | 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 |  | | Report (chapter) | | volcanism and rift structure in the Taupo Volcanic Zone, New Zealand J. W. COLE1* & K. D. SPINKS2 1 Department...Christchurch 8140, New Zealand 2 Mighty River Power Ltd, PO Box 445, Hamilton, New Zealand *Corresponding...(e-mail: jim.cole@canterbury.ac.nz) Abstract: The Taupo Volcanic Zone (TVZ) is an active continental volcanic...arc/back-arc basin in central North Island, New Zealand. It is the youngest area of volcanic activity...predominantly normal (dip .608) faults within the Taupo Rift, but with some strike-slip component. TVZ can |  | | Journal (article/letter/editorial) | | sedimentation on the margin of a caldera lake, Taupo Volcanic Centre, New Zealand Robyn C.M. Smith * Departments...Geology and Geography, University of Auckland, New Zealand Accepted for publication May 27, 1991 ABSTRACT...sedimentation on the margin of a caldera lake, Taupo Volcanic Centre, New Zealand. In: R. Cas and C. Busby-Spera...close of the 1.8 ka eruption from Taupo Volcanic Centre, New Zealand. Lithofacies indicate that sediments...deposited by debris and hyperconcentrated flows onto the new land surface, and by dilute, turbulent flows in a |  | | 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 |  | | 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) | | University of Auckland, Private Bag, 92019, Auckland, New Zealand Abstract The Broadlands-Ohaaki geothermal system...mineral zonation, which is the focus of this paper. New data are presented on the occurrence and abundance...side of the Taupo Volcanic Zone, is 1 of about 20 known hydrothermal systems in the region (Fig. 1). These...been drilled (Fig. 1). The A B M7 White Island Taupo Volcanic Zone 12 ikat Wa 5 24 34(M2,4) BROADLANDS/...system is located in the Taupo Volcanic Zone of the North Island, New Zealand. Widespread volcanism and |  | | Journal (article/letter/editorial) | | 257-267. STUDY NORTH-HOLLAND OF SECULAR IN NEW ZEALAND PUBLISHING COMP., AMSTERDAM VARIATION * ...Received 6 June 1969 Ancient secular variation in New Zealand was determined from paleomagnetic measurements...detected between the angular secular variation in New Zealand and that at the same latitude in North America...sequence of rhyolite ignimbrites that fill the Taupo graben. These reach a maximum thickness of 1000...radiometrically the beginning of the Pleistocene in New Zealand. This work indicated that deposition of the Wanganui |  | | Report (chapter) | | structure and sediments of the Bay of Plenty, New Zealand K. B. Lewis & H. M. Pantin SUMMARY: West of the...lower slope off the Bay of Plenty, North Island, New Zealand. It is replaced on the adjacent upper slope,...known as the Taupo Volcanic Zone, which is part of the Hikurangi Plate Boundary System. The Taupo Volcanic...of mainly rhyolitic, pyroclastic debris from the Taupo Volcanic Zone. This contrasts with the smooth, non-volcanic...slope. The Bay of Plenty, off North Island, New Zealand, is in a critical structural position. Here, |  | | 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...continuity of element abundances through the rhyolite-dacite-andesite compositional range, by including limited...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 |  | | Journal (article/letter/editorial) | | Tectonic Controls on Hydrothermal Flow, Taupo Volcanic Zone, New Zealand: Implications for the Formation of...Auckland, New Zealand 2 Hot Solutions Ltd, PO Box 32-125, Devonport, Auckland, New Zealand Abstract...scales for geothermal systems of the Taupo Volcanic Zone, New Zealand. Most geothermal systems occur within...shearing, caused by low differential stresses. The Taupo Volcanic Zone is highly prospective for epithermal-style...Introduction GEOTHERMAL activity in the central Taupo Volcanic Zone has long been associated with transport |  | | Journal (article/letter/editorial) | | rock and intrusive lavas from the Taupo Volcanic Zone, New Zealand P. Mielke a,⁎, S. Weinert a, G. Bignall...Research Centre, 114 Karetoto Road - RD4, Taupo 3377, New Zealand a r t i c l e i n f o Article history:...Terrane form the basement of the Taupo Volcanic Zone (TVZ), New Zealand. Together with inferred buried...geothermal resources of New Zealand utilised for power generation are located in the Taupo Volcanic Zone (TVZ)...approximately 17% of the total electricity produced in New Zealand. Since 1988 geothermal power generation increased |  | 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 |  | | Journal (article/letter/editorial) | | the Taupo Volcanic Center, New Zealand: petrological and thermal constraints from the Omega dacite Sarah...Heidelberg 2013 Abstract The 20 ka *0.1 km3 Omega dacite, which erupted shortly after the 26.5 ka Oruanui...super-eruption, compositionally stands out among Taupo Volcanic Zone (TVZ) magmas, which are overwhelmingly...chemistry of the major phases present in the Omega dacite and determine intensive parameters describing magma...the bulk rock and glass compositions of the Omega dacite at these estimated P–T–fO2 pre-eruptive conditions |  | | 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...accessory fragments dominantly of rhyolite, with minor dacite, ignimbrite, and andesite; crystals of plagioclase...attributed to progressive volatile loss. In the large Taupo (3) and Waimihia (15) deposits, there was a rapid |  | | Report (chapter) | | structure and rotations within central North Island, New Zealand T. A. STERN Institute of Geophysics, Victoria...University of Wellington, P.O. Box 600, Wellington, New Zealand (e-mail: tim.stern@vuw.ac.nz) Abstract: Geodetic...a fan-like opening of central North Island, New Zealand, in the past 5 Ma. Palaeomagnetic rotation rates...system is within the central North Island of New Zealand and is considered here to include not only the...continental back-arcs? Tectonic setting Continental New Zealand has evolved and deformed along the boundary zone |  | | Journal (article/letter/editorial) | | Ruapehu Volcano and Related Vents, Taupo Volcanic Zone, New Zealand by I. J. GRAHAM* AND W. R. HACKETTf...lavas and those of related vents (Taupo Volcanic Zone, New Zealand) are calc-alkaline, medium-K basic...acid andesites, though minor volumes of basalt and dacite occur. Nearly all are porphyritic with phenocrysts...phyric lavas dominate, and range from basalt to dacite. Least squares mass balance calculations indicate...probably generated by mixing Type 5 basalt with Type 1 dacite in proportions of between 60:40 and 50:50. The |  | | 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...Effusive activity yielding a lava dome (Pohaturoa, New Zealand). (B) Fall activity from a buoyant plume giving...landscape-mantling fall deposits (1.8 ka Taupo eruption, New Zealand). (C) Pyroclastic flow activity from |  | | | | 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 |  | | Journal (article/letter/editorial) | | using three Quaternary (<2.6 Ma) examples from New Zealand and the USA. In these systems, magmatic processes...Victoria University PO Box 600, Wellington 6140, New Zealand E-mail:colin.wilson@vuw.ac.nz 2 CEPSAR, The Open...approach works well in areas like the Taupo Volcanic Zone (TVZ; New Zealand), or Long Valley (California, USA)...the decay and production rates are matched and a new secular equilibrium is achieved after about 350 ky...VOLCANIC RECORD Taupo Volcanic Zone (TVZ) The central Taupo Volcanic Zone (New Zealand) has been an exceptionally |  | | Journal (article/letter/editorial) | | ORIGIN OF ANDESITES AND BASALTS OF THE TAUPO VOLCANIC ZONE, NEW ZEALAND J.W. COLE 1, K.V. CASHMAN 2 and P...Victoria University of Wellington, Wellington (New Zealand) 2 U.S. Geological Survey, Vancouver, WA 98661...Scientific and Industrial Research, LowerHutt (New Zealand) (Received May 18, 1982; revised and accepted...origin of andesites and basalts of the Taupo Volcanic Zone, New Zealand. Chem. Geol., 38: 255--274. Two types...associated with the rhyolitic centres north of Taupo and a "low-Al" basalt erupted from Red Crater, Tongariro |  | | 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 |  | | Report (issue) | | strain, triangulation, gravimetry, tide gauges, lake level, and Global Positioning System (GPS) measurements...basalt, < 52% SiO2 A: andesite, 52-62% SiO2 D: dacite, 62-70% SiO2 R: rhyolite, > 70% SiO2 U: unknown...volumetric strainmeter R: triangulation I: tide gauge A: lake level G: gravity C: crack measurement V: visual...emissions T: increased fumarole, hot-spring, or lake temperatures R: reduction in the magnetic field...References 0101-01 VOLCANO # Phlegraean Fields Region: Italy Tedesco, D., Bottiglieri, L., and Pece |
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