 | | Journal (article/letter/editorial) | | in Undersaturated Volcanic Rocks from the East Otago Volcanic Province (New Zealand) and Related Rocks...petrology of the East Otago Volcanic Province (late Miocene), including the Dunedin Complex, is dominated...intrusives whose compositions range from alkali basalt, basanite, and nephelinite to trachyte and phonolite...range of relatively potassic volcanic rocks is also developed in the Province. The degree of undersaturation...intrusives in the Province, assessed in conjunction with similar data from other volcanic provinces, demonstrate |  | | 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 (REE) La-Yb. The compositions analyzed were: basalt-hawaiite-mugearitebenmoreite; basanite, nepheline...benmoreite; trachytc; phonolite. The series from basalt to mngearite shows continuous enrichment in the |  | | Journal (article/letter/editorial) | | Petrology of Dunedin Volcano R.C. Price Department of Geology, University of Otago, Dunedin, New Zealand* B.W...indicate that the range in rock types making up the Dunedin volcano has developed by crystal fractionation...fractionation trends. 'End member' series are: basalt-hawaiite-mugearite-benmoreite; basanite-nepheline...Introduction Age and History of the Volcanism The Dunedin Volcanics form a prominent massif about 30 km in...centred on Port Chalmers in the middle reaches of Otago Harbour, across the northeastern end of the Taieri |  | | Journal (article/letter/editorial) | | the Banks Peninsula Volcanoes, South Island, New Zealand R.C. Price I and S.R. Taylor 2 1 Department of...the volcanic sequence of the twin volcanoes of Lyttelton and Akaroa, Banks Peninsula, New Zealand a number...Formation, but unconformably overlain by the main volcanic dome sequence, is a unit of rhyolite (Gebbies...into the crust. Between 12 and 9.7 m.y. a large volcanic dome, composed mainly of hawaiite, was built at...which intrude the Lyttelton volcanic sequence, range in composition from basalt to trachyte. Late, mildly |  | | 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...rocka, particularly greywacke Young (Cenozoic) volcanic rocks, including 4. modern volcanoes 5. s 9...9 Iii ■ t Old (Mesozoic and Paleozoic) volcanic rocks Schist Gneiss and granulite 20 6 Figure |  | | 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) | | Geology and petrology of the McMurdo Volcanic Group at Rainbow Ridge, Brown Peninsula, Antarctica PHILIP...of Geology, Victoria University, Wellington, New Zealand PETER C. RANKIN Soil Bureau, Department of Scientific...Lower Hütt, New Zealand ABSTRACT Strongly undersaturated rocks of the McMurdo Volcanic Group of late...alkalic volcanic rocks of late Cenozoic age in the McMurdo Sound area constitute the Erebus volcanic province...province of the McMurdo Volcanic Group (Kyle and Cole, 1974). The lavas range in composition from basanite |  | Brenna, Marco, Pontesilli, Alessio, Mollo, Silvio, Masotta, Matteo, Cronin, Shane J., Smith, Ian E.M., Moufti, Mohammed Rashad Hassan, Scarlato, Piergiorgio (2019) Intra-eruptive trachyte-phonolite transition: Natural evidence and experimental constraints on the role of crystal mushes. American Mineralogist, 104 (12) 1750-1764 doi:10.2138/am-2019-6963 | Journal (article/letter/editorial) | | Scarlato7 Geology Department, University of Otago, Dunedin, New Zealand. Orcid 0000-0001-6096-6999 2 Geology...Geology Department, University of Otago, Dunedin, New Zealand 3 Dipartimento di Scienze della Terra, Sapienza...Environment, University of Auckland, Auckland, New Zealand 6 Faculty of Earth Sciences, King Abdulaziz University...Shaatha pyroclastic sequence in the Harrat Rahat Volcanic Field (Kingdom of Saudi Arabia). We performed...intraplate volcanic settings, trachytes and phonolites are frequently associated within the same volcanic system |  | Green, D. H., Edgar, A. D., Beasley, P., Kiss, E., Ware, N. G. (1974) Upper mantle source for some hawaiites, mugearites and benmoreites. Contributions to Mineralogy and Petrology, 48 (1) 33-43 doi:10.1007/bf00399108 | Journal (article/letter/editorial) | | show that most host magmas are of alkali olivine basalt or basanite composition with relatively rare olivine...high pressure mineralogy in north-eastern Otago, New Zealand led Wright (1966) and Price and Green (1972)...over seventy samples from the Tertiary to Recent basalt provinces in Eastern Australia and Tasmania have...T29 T23 2933T25, 5'0 60 710 100Mg/Mg + Fe ++ OF BASALT ~///~l P 100Mg Fig. la and b. Histograms showing...of Mg @ Fe+~ values for 130 lherzolite-bearing volcanic rocks of Tertiary to Recent age occurring in Eastern |  | | Journal (article/letter/editorial) | | 94:461-471 9 Springer-Verlag 1986 Petrology of volcanic rocks from Kaula Island, Hawaii Implications for... Abstract. A compositionally diverse suite of volcanic rocks, including tholeiites, phonolites, basanites...previously, had only been reported in the Honolulu volcanic rocks) and the similar age of the Kaula basanite...fragments of light gray (phonolite) and dark gray (basalt) volcanic rocks, coralline material, coarse-grained...geochronological data on the distinctive, accidental volcanic blocks recovered from Kaula Island and to compare |  | | | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...Mayor I WodlO(O Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl...I . I SOUTH PACIFIC /ocEAN I I Chalmer,: OTAGO PENINSULA NEDIN ---- :aitangata Clvtho River...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::~. |  | | Book (volume) | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...Mayor I WodlO(O Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl...I . I SOUTH PACIFIC /ocEAN I I Chalmer,: OTAGO PENINSULA NEDIN ---- :aitangata Clvtho River...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::~. |  | | Journal (article/letter/editorial) | | Just as there are all grada1:ions between olivine basalt and basanite, so there is a full compositional...enormous volume of salic volcanics in the Kenya province, compared with that of associated basic and intermediate...strontium isotope data for syenites of the Oslo province, where basic rocks are also subordinate in volume...of olivine nodules and pyroxene megacrysts in a New South Wales haiwaiite is taken b) Wilkinson & Binns...in undersaturated volcanic rocks from the East Otago volcanic province (New Zealand) and related rocks |  | | Journal (article/letter/editorial) | | LHERZOLITE-BEARING MAGMAS I N THE TASMANIAN VOLCANIC PROVINCE F.L. S U T H E R L A N D Australian Museum...tholeiite near Andover in the Tasmanian Tertiary volcanic province. They show a high-pressure mineralogy of predominant...xenocrysts, then the magnesian number of the host basalt and its xenocryst assemblage provisionally suggest...crystallisation at pressures between 8 - 1 3 kbar. With this new record, lherzolite-bearing lavas in Tasmania now...relatively more abundant in peripheral parts to the main basalt sequences in Tasmania. This suggests that they |  | | Journal (article/letter/editorial) | | Department of Geology, University of Otago, Leith St, Dunedin 9054, New Zealand 2, MA james.scott@otago.ac...spinel facies harzburgitic xenolith suites from New Zealand are examined. Samples from Cape L’Evique (CLEV)...in two highly depleted peridotite suites from New Zealand (Fig. 1) with the goal of using this information...spinel facies peridotites. 2. GEOLOGICAL SETTING New Zealand and offshore islands represent a small exposed...flow at Cape L’Evique on Chatham Island, ~800 km east of the South Island (Fig. 1). The NU Chatham Islands |  | | Journal (issue) | | Earth Sciences, Macquarie University, North Ryde, New South Wales 2113 Australia ABSTRACT. Cainozoic alkali...alkali baS'altic rocks from the Southern Highlands province, eastern Australia, range from olivine nephelinites...Southern Highlands province (fig. I) covers approx 50 km2 southwest of Sydney, New South Wales, Australia...Southern Highlands basaltic rocks as a discrete province is partly based on their geographical distribution...charac terize the Southern Highlands as a discrete province, to show the domi nance of primary or primitive |  | | 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...represented in a set of samples from the summit region of the Plio-Pleistocene volcano, Mr. Kenya. Most...presents data for a suite of samples from the summit region of Mt. Kenya. The suite covers a range of phonolitic...200 m is a central volcano located to the east of the East African Rift (Fig. 1). "~~ L. Rudolf (~...O~orgesailie Fig. 1. Mt. Kenya, the Gregory Rift, and the East African Rift System. Pliocene central volcanoes |  | | Journal (article/letter/editorial) | | of Late Cenozoic alkaline lavas of the McMurdo Volcanic Group, Antarctica PHILIP R. KYLE* Departments...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...representative of four lava lineages of the McMurdo Volcanic Group, Antarctica. A kaersutite and two feldspar...rare earth element (REE) abundances in alkali volcanic rocks have been used to elucidate fractional crystallization |  | | Journal (article/letter/editorial) | | SVSr/86Sr ratio (0.707) typical of basalts in this region. The very low Rb/Sr ratios limit processes that...south-central part of the Great Basin physiographic province. The basin is partly filled by alluvium, with...local outcrops of tuff of Miocene age and basaltic volcanic rocks of Pliocene and Quaternary age. The basalts...cones, lava flows, and associated dikes. These volcanic rocks, plus a cluster of cones and flows immediately...Nevada (Fig. 1). Details of this north-north-east trending volcanic belt are described in Crowe et al. (1980) |  | | Journal (article/letter/editorial) | | and Sub-Alkalic Volcanism in South Auckland, New Zealand Warwick J. Rafferty and Robert F. Heming Geology...Auckland, New Zealand Abstract. A significant feature of Quaternary volcanism in New Zealand is the presence...lavas are alkalic (basanite and alkali-olivine basalt), and are associated with maars and small scoria...the two magmas. Introduction The Quaternary volcanic field of South Auckland contains over 70 strombolian...volcanism in the Coromandel and Taupo areas to the east and southeast. Some volcanism also occurred over |  | | Journal (article/letter/editorial) | | Geophysical Sciences, University of Utah, Salt Lake City, Utah 84112 J. F. G. Will~iuson School of Earth...Earth Sciences, Macquarie University, North Ryde, New South Wales 2113 l~eceived August 8, 1971 Abstract...with most well-documented alkaline intrusions and volcanic lineages. The major and trace element abundance...Scottish Tertiary, Hawafian, and Polyaesian alkali basalt-> traehyte series (Nockolds and Allen, 1954), the...Sag laccolith (8S), lavas from the Navajo volcanic province (N) (Nieholls, 1969) and a lanthanum value |  | | Journal (article/letter/editorial) | | Netherlands 323 Petrology and geochronology of volcanic rocks from seamounts along and near the Hawaiian...Naughton, J.J .• 1987. Petrology and geochronology of volcanic rocks from seamounts along and near the Hawaiian...data base. New ages further document the linear age progression along the cham and define a new propagation...of the chain consists of seamounts (87 of I07 volcanic edifices that comprise the chain and all but four...ever been undertaken. Rocks from only 8 of the 48 volcanic edifices between Nihoa Island and the bend in |  | | Journal (article/letter/editorial) | | appears to be hard to justify the use of the term basalt for lavas with less than 6 percent MgO. Even with...as that covered by the entire set of basaltic volcanic suites from picrites and ankaramites to rhyolitcs...rhyolitcs, trachytes and phonolites. Introduction Volcanic lavas are surely the group of igneous rocks whose...higher temperatures than olivine, especially in the region where the magnetite melting curve crosses those...One-atmosphere liquidus versus MgO for terrestrial volcanic rocks. Filled symbols are silicate liquidi. Open |  | | Journal (article/letter/editorial) | | Some Tholeiites from the Inverell Area, New South Wales, and their Bearing on Low Pressure Tholeiite...Department of Geology, University of New England, Armidale, New South Wales, 2351 (Received 2 January...tholeiites and tholeiites from the Inverell area, New South Wales, consist of the assemblages olivine-calcic...series represents a major and well-documented volcanic association. The series comprises olivine tholeiite...tholeiites from the Inverell area in north-eastern New South Wales. The tholeiites and associated volcanics |  | | Journal (article/letter/editorial) | | along the eastern margin of the Basin and Range province in northern Arizona and Utah has created a suite...ascent to the surface. Basanite and alkali olivine basalt melts originated at depths of at least 65 km and...basaltic volcanism for the whole Basin and Range province, are explained in terms of upper mantle dynamics...Cenozoic in the core area of the Basin and Range province and causing progressive thinning or "erosion"...migrate. Key words: igneous petrology, Cenozoic, basalt, magma, mantle. INTRODUCTION Much attention has |
|
