 | | Journal (article/letter/editorial) | | Petrology of Dunedin Volcano R.C. Price Department of Geology, University of Otago, Dunedin, New Zealand* B.W...that the range in rock types making up the Dunedin volcano has developed by crystal fractionation processes...variants on these series. The phonolitic rocks of the volcano are low pressure differentiates derived by fractional...outlined above. Quartz normative trachytes of the volcano appear to be differentiates from a distinct saturated...Introduction Age and History of the Volcanism The Dunedin Volcanics form a prominent massif about 30 km in |  | Hoernle, K., White, J.D.L., van den Bogaard, P., Hauff, F., Coombs, D.S., Werner, R., Timm, C., Garbe-Schönberg, D., Reay, A., Cooper, A.F. (2006) Cenozoic intraplate volcanism on New Zealand: Upwelling induced by lithospheric removal. Earth and Planetary Science Letters, 248 (1) 350-367 doi:10.1016/j.epsl.2006.06.001 | Journal (article/letter/editorial) | | com/locate/epsl Cenozoic intraplate volcanism on New Zealand: Upwelling induced by lithospheric removal K...Geology Department, University of Otago, PO Box 56, Dunedin 9015, New Zealand c Tethys Geoconsulting GmbH,...Auckland, Campbell and Antipodes Islands of New Zealand has produced quartz tholeiitic to basanitic/nephelinitic...monogenetic volcanic fields and large shield volcanoes. New 40Ar/39Ar ages, combined with published age data...volcanism; continental diffuse igneous province; New Zealand; detachment ⁎ Corresponding author. Tel.: +49 |  | | Journal (article/letter/editorial) | | Springer-Verlag 1973 The Geochemistry of the Dunedin Volcano : Strontium Isotope Chemistry R. C. Price Department...Department of Geology, University of Otago, Dunedin, New Zealand W. Compston Research School of Earth...of the Dunedin Volcano covering the range basalt, basanite, intermediate compositions, phonolite and quartz...0 m.y. Introduction The Dunedin Volcano of east Otago Province, New Zealand is composed of a succession...through intermediate compositions to trachyte and phonolite. We have examined the isotopic composition of |  | | Journal (article/letter/editorial) | | 1973 The Geochemistry of the Dunedin Volcano, East Otago, New Zealand: Rare Earth Elements 1~. C. Price...Price Geology Department, University of Otago, Dunedin, New Zealand S. 1%. T a y l o r Geophysics and Geochemistry...Abstract. A variety of alkaline lavas from the Dunedin Volcano have been analyzed for the rare earth elements...trachyandesitc and ncpheline benmoreite; trachytc; phonolite. The series from basalt to mngearite shows continuous...d i n Volcano of E a s t Otago, New Zealand, is a d e e p l y dissected, comp o s i t e volcano of U p |  | | Journal (article/letter/editorial) | | lavas from Nigeria, Australia, East Germany and New Zealand ANTHONYJ. IRVING* tunar and Planetary Institute...spine1 lherzolite xenoliths from Bokkos (Nigeria), Phonolite Hill (northeastern Australia) and Heldbmg (East...benmoreite from Pigroot (New Zealand) to basanitic lavas of the East Otago province is not supported...possibly the product of melting of a mantle source region previously enriched in Sr and light rare earth...98195, U.S.A. Rocks ranging in chemistry from phonolite to hawaiitic nepheline mugearite are intimately |  | | Journal (article/letter/editorial) | | andDunedinVolcano'New Zealand Pmlrp R. Kvlr, Departmentof Geology,Victoris Uniuersity, Wellington,N ew Zealand tNo Rlculnn...PnIcn' Departmentof Geology,Uniuersityof Otago, Dunedin.New Zealand Abstract of rhijnite are reportedin alkaliclavasof...(Hut Occurrences Point Peninsula,Antarctica) and Dunedin Volcano (New Zealand).Electron microprobe analysesincreasethe...Antarcticexamples having higher TiOr, and the Dunedin examplehigherNarO than other terrestrialrhiinites'...a groundmassconstituentof lavas at Hut Point Peninsula,Ross Island, Antarctica. The mineral was discoveredduring |  | | Journal (article/letter/editorial) | | WESTLAND, NEW ZEALAND Alan F. COOPER§ and Lorraine A. PATERSON Geology Department, University of Otago, P.O...O. Box 56, Dunedin, New Zealand Abstract A late Oligocene – early Miocene alkali lamprophyre dyke swarm...swarm was emplaced in western South Island, New Zealand, during transtensional development of the Alpine...MREE-enriched pattern. Keywords: lamprophyre, phonolite, carbonatite, Ba–Sr–REE carbonates, FOZO component...component, liquid immiscibility, South Island, New Zealand. Sommaire Un essaim de filons de lamprophyres |  | | Journal (article/letter/editorial) | | Department of Geology, University of Otago, P.O. Box 56, Dunedin, New Zealand b Science and Engineering, University...University of Waikato, Hamilton, New Zealand Received 21 July 2012; accepted in revised form 20 August...address: GNS Science, Private Bag 1930, Dunedin, New Zealand. Tel.: +64 34799683. E-mail address: adammartin2000@yahoo...relatively simple compared to Zealandia and this volcano may be used as an analogue to the more complex...DAMP. Southern Victoria Land is recognized as a region of Nb/ Ta heterogeneity (Cooper et al., 2007) and |  | Scott, J. M., Hodgkinson, A., Palin, J. M., Waight, T. E., Van der Meer, Q. H. A., Cooper, A. F. (2014) Ancient melt depletion overprinted by young carbonatitic metasomatism in the New Zealand lithospheric mantle. Contributions to Mineralogy and Petrology, 167 (1) doi:10.1007/s00410-014-0963-0 | Journal (article/letter/editorial) | | overprinted by young carbonatitic metasomatism in the New Zealand lithospheric mantle J. M. Scott • A. Hodgkinson...from a cluster of Miocene volcanoes in southern New Zealand preserve evidence of the complex evolution of...Department of Geology, University of Otago, Leith St, Dunedin 9054, New Zealand e-mail: james.scott@otago.ac...clustered Miocene volcanoes in the South Island of New Zealand (Fig. 1). We assess the nature of the metasomatism...have been built. The intraplate Dunedin Volcanic Group in East Otago is composed of two members: the |  | | Journal (article/letter/editorial) | | Western Otago, New Zealand by A. F. COOPER Department of Geology, University of Otago, Dunedin, New Zealand...part of a lamprophyre dyke swarm from West Otago, New Zealand comprises monchiquites and camptonites. Dykes...Terrane in South Westland and western Otago, South Island, New Zealand (Fig. 1). The swarm extends from the...FIG. 1. Locality map of the Alpine dyke swarm. New Zealand. Locations of dykes discussed in this repon are...May 12, 2015 A OCELLAR LAMPROPHYRES FROM NEW ZEALAND 141 FIG. 2. OU 27518.* Holocrystalline lamprophyre |  | | Journal (article/letter/editorial) | | mixing in the Puy Griou/Griounot area of the Cantal volcano (10 3 Ma). Petrographic evidence for injection...Transfer of phenocrysts between basic inclusions and phonolite hosts was common, and can be seen clearly in the...that, unlike most other fractionated magmas of the region, phonolites which show evidence for magma mixing...undersaturated alkaline volcanics (basaltic tephrite-phonolite) of the French Massif Central. Characteristic...undersaturated basanitetephrite phonolite series. A review of igneous activity in the region is given by Downes (1987) |  | | Journal (article/letter/editorial) | | Undersaturated Volcanic Rocks from the East Otago Volcanic Province (New Zealand) and Related Rocks by D. s. COOMBS...petrology of the East Otago Volcanic Province (late Miocene), including the Dunedin Complex, is dominated...basalt, basanite, and nephelinite to trachyte and phonolite. A range of relatively potassic volcanic rocks...The unequivocal production of phonolite from trachyte in the East Otago Province has not been demonstrated...nepheline mugearite, and nepheline benmoreite, to phonolite; (3) a nephelinite series, more restricted in |  | | Report (issue) | | NEW ZEALAND DEPARTMENT OF SCIENTIFIC AND INDUSTRIAL RESEARCH NEW ZEALAND GEOLOGICAL SURVEY 125th ANNIVERSARY...1865 -1990 NEW ZEALAND GEOLOGICAL SURVEY BULLETIN 104 ISSN 0077-9628 Minerals of New Zealand by G. L....initials should be G.T., not G.L. Lower Hutt, New Zealand 1990 I I Beach sand, alluvium, • terrace...Figure 1. Simplified geological sketch-map of New Zealand. 0 20 40 60 80 100 KM l INTRODUCTION It...Morgan's "Minerals and Mineral Substances of New Zealand" was published, as NZ. Geological Survey bulletin |  | | Journal (article/letter/editorial) | | NarFel+Fel+SiuO20, a new member of the aenigmatitegroup from the Warrumbungle Yolcano, New South Wales, Australia...cr Wilkinsonite, ideally NarFel+Fel+Si.Oro,is a new member of the aenigmatitegroup. Its principal known...rsaturatedtrachyte from the Wamrmbungle Volcano, central New South Wales, Australia. A complete solid-solution...silica-undersaturatedtrachytesfrom the Warrumbungle Volcano, central New South Wales,Australia. In particular, a...peralkaline trachyte from the southeastflank of the volcano contains an aenigmatitegroup phase in which Ti |  | | Journal (article/letter/editorial) | | contains accidental fragments of light gray (phonolite) and dark gray (basalt) volcanic rocks, coralline...reported as a nepheline-bearing phonolite from Pearl and Hermes Volcano (Clague et al. 1975), midway along...1974). Nepheline was not observed in any of the phonolite thin sections even after the sections were stained...Tholeiite KA-14 Strike and Dip Nephefinite KA-31 Phonolite KA-36 7 <1 2 --- 3 <1 ---- 12 ----- 1 33 32...function of distance in kilometers from Kilauea Volcano. Modified from Clague et al. (1982). Dashed line |  | | Journal (article/letter/editorial) | | 425 The iron-titanium oxides of some Dunedin (New Zealand) lavas, in relation to their palaeomagnetic...p a r t m e n t , U n i v e r s i t y of Otago, N e w Zealand 1 [Read 8 June 1967] Summary. Earlier palaeomagnetic...palaeomagnetic studies on the Dunedin volcano showed that a portion of the sequence is reversely or anomalously...operative, the reversely magnetized part of the Dunedin sequence was probably erupted during a reversed...phonolites f r o m the Mio-Pliocene D u n e d i n volcano v a r i e d w i t h respect to their position in |  | | Journal (article/letter/editorial) | | Geochemistry of phonolites and trachytes from the summit region of Mt. Kenya R.C. Price 1, R.W. Johnson 2, C.M...set of samples from the summit region of the Plio-Pleistocene volcano, Mr. Kenya. Most of the samples...presents data for a suite of samples from the summit region of Mt. Kenya. The suite covers a range of phonolitic...which reaches a summit of 5,200 m is a central volcano located to the east of the East African Rift (Fig...Mugearite, Trachyte, Phonolite [-~ Syenite Kenytes MAIN PHASE -I Porphyritic Phonolite " ] Flows and Agglomerates |  | | Journal (article/letter/editorial) | | Geochemistry of a Basanite to Phonolite Sequence at Hut Point Peninsula, Antarctica, based on Core from...cored three holes (DVDP 1, 2 and 3) at Hut Point Peninsula (HPP) on Ross Island, Antarctica. DVDP 1 reached...alternating Ne-mugearite and Ne-benmoreite flows. Phonolite stratigraphically overlies the drill site. Primary...basanite-Ne-hawaiite-Ne-mugeariteNe-benmoreite-phonolite, termed the DVDP lava lineage. Differentiation...75 per cent of the evolution from basanite to phonolite occurs in the initial step from basanite to Ne-hawaiite |  | | Journal (article/letter/editorial) | | paragenesis in pyroxenite xenoliths, Mount Sidley volcano, Marie Byrd Land, West Antarctica R. H. GRAPES1...pyroxenite xenoliths erupted in phonolite from the Mount Sidley composite volcano, Marie Byrd Land, Antarctica...rhonöte, pyroxenite xenoliths, Mount Sidney, volcano, Antarctica, kaersutite. Introduction RHÖNITE...Facility of Victoria University of Wellington, New Zealand. Operating conditions followed full ZAF corrections...elements. (0.5 1.0 Ma) phonolite lavas erupted from the Mount Sidley composite volcano, southern Executive |  | | Journal (article/letter/editorial) | | McMurdo Volcanic Group at Rainbow Ridge, Brown Peninsula, Antarctica PHILIP R. KYLE Institute of Polar...of Geology, Victoria University, Wellington, New Zealand PETER C. RANKIN Soil Bureau, Department of Scientific...Scientific and Industrial Research, Lower Hütt, New Zealand ABSTRACT Strongly undersaturated rocks of the...Volcanic Group of late Cenozoic age at Brown Peninsula form three eruptive cycles of basaltic to salic...Figure 1. Generalized geological map of Brown Peninsula, showing location of Rainbow Ridge (after Cole |  | | Journal (article/letter/editorial) | | Victoria University of Wellington, Wellington, New Zealand and PETER C. RANKIN Soil Bureau, Department...Scientific and Industrial Research, Lower Hutt, New Zealand (Received 12 January 1976; accepted in revisedfirm...basanite to nepheline benmoreite and a basanite to phonolite, have similar chondrite-normalized REE fractionation...= 0.10). A nepheline hawaiite to anorthoclase phonolite lava lineage from the Erebus Centre shows enrichment...overlapping in the middle REE does occur. Anorthoclase phonolite has a positive Eu anomaly (Eu/Eu* = 1.31), indicating |  | | Journal (article/letter/editorial) | | the late Quaternary cinder cones of the andesite volcano Colima (Luhr and Carmichael 1981), two leucite...(SSC-[I, 2]) series of lavas from the Lake Rudolf region (Brown and Carmichael 1969, 1971), a basalt glass...present experiments, the experiments and the phonolite lavas to be discussed subsequently, suggest that...multiply saturated, potassic magmas of the basanite-phonolite-leucitite, absarokite-shoshonite-banakite, and...Mountains, M o n t a n a (Larsen et al. 1941) and New South Wales (Cundari 1973). Trachybasalts from Tristan |  | | Journal (article/letter/editorial) | | trachyandesite latite benmareite phonolite trachytic phonolite tholeiite olivine-basalt alkali olivine-basalt...alksline rocks. For example, phonolites from the Dunedin Volcano characterktic.~lly have a conskierably higher...~cl'yba~ln, te ~ d ~ -'rrachyte Alkali Basalt Phonolite i om Zr/~02 . C~ . | • 3 Fig.1. SiOs--ZriTiOi...al., 1974), and an a]kA,~e series from the Dunedin Volcano (Price and Taylor, 1973) (Fig.3). With the...Only between a few rock types, notably trachyte, phonolite and trachyandesite are the limits ill-dei'med |  | | Journal (article/letter/editorial) | | of Earth and Space Sciences, State University of New York, Stony Brook, N.Y. 11794 U.S.A. Abstract. Eighteen...tica consisting of basanitoid, trachybasalt and phonolite have been analyzed for rare earth elements (REE)...a mafic phonolite results. If, however, no kaersutite is involved, an anorthoclase phonolite results...results. A distinct type of mafic phonolite results if kaersutite is one of the minerals that separates from...from the anorthoclase phonolite. If the anorthoclase phonolite precipitates plagioclase and anorthoclase |  | | | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...~fJl.NI' ','Vaihe ~o AUCKL , d, • OROMANDEL PENINSULA 1 .. Mariukdu Harboor \ ~ TASMA N ~ 1 M...Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl.lfld I MY Secretar)'...ok;Q\ S E A Hoki. Hok1C1k PEGASUS BAY I II PENINSULA tI H+rtd1R ' ·Rong1toco R,ve1 '.,"~:....... I SOUTH PACIFIC /ocEAN I I Chalmer,: OTAGO PENINSULA NEDIN ---- :aitangata Clvtho River I Nugeet |
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