 | Spandler, Carl J., Arculus, Richard J., Eggins, Stephen M., Mavrogenes, John A., Price, Richard C., Reay, Anthony J. (2003) Petrogenesis of the Greenhills Complex, Southland, New Zealand: magmatic differentiation and cumulate formation at the roots of a Permian island-arc volcano. Contributions to Mineralogy and Petrology, 144 (6) 703-721 doi:10.1007/s00410-002-0424-z | Journal (article/letter/editorial) | | J. Reay Petrogenesis of the Greenhills Complex, Southland, New Zealand: magmatic differentiation and...fortuitously exposed in southern New Zealand. Known as the Greenhills Complex, this intrusion was emplaced...Hamilton, New Zealand A.J. Reay Geology Department, University of Otago, Dunedin, New Zealand Editorial...intrusives are rarely exposed. The Greenhills Complex of South Island, New Zealand is a small intrusive body which...Geological setting The pre-Cainozoic geology of New Zealand consists largely of a series of unrelated tectono-stratigraphic |  | Mossman, D. J., Coombs, D. S., Kawachi, Y., Reay, A. (2000) HIGH-Mg ARC-ANKARAMITIC DIKES, GREENHILLS COMPLEX, SOUTHLAND, NEW ZEALAND. The Canadian Mineralogist, 38 (1) 191-216 doi:10.2113/gscanmin.38.1.191 | Journal (article/letter/editorial) | | HIGH-Mg ARC-ANKARAMITIC DIKES, GREENHILLS COMPLEX, SOUTHLAND, NEW ZEALAND DAVID J. MOSSMAN§ Department...Geoscience, Mount Allison University, Sackville, New Brunswick E4L 1E6, Canada DOUGLAS S. COOMBS, YOSUKE...Department of Geology, University of Otago, Dunedin, New Zealand ABSTRACT Minor dikes 8–70 cm thick of ankaramitic...were emplaced late in the crystallization of the Greenhills Complex, a layered dunite – wehrlite – hornblende...arc-derived Brook Street Terrane of southern New Zealand. Mg contents range from 10 to 28 wt% MgO. The |  | | Journal (article/letter/editorial) | | 1970 BOUNDARY TRANSITIONAL-PRIMITIVE IN CALCIC PLAGIOCLASE Davro J. Mossrvran,Department of Geol'ogy, IJniversity...four specimens of plagioclase from Greenhills, Blufi Peninsula, Southland, New Zealand, suggests a discontinuity...occurrence of two structurally distinct tlpes of plagioclase on opposite sides of the proposed break is supported...supported by single crystal X-ray study of the Greenhills plagioclases frqrnorucrrou Smith (1960) indicated...optical properties of lowtemperature calcic plagioclase at Anso+.3but cautioned that its closer characterization |  | | Journal (article/letter/editorial) | | ground water on a tidal flat, Awarua Bay, Southland, New Zealand A l a n R. O r p i n * Department of Geology... University of Otago, P.O. Box 56, Dunedin, New Zealand Received October 5, 1993; revised version accepted...regular edifices are present at Awarua Bay, Southland, New Zealand. The pyrite concretions have a plumbing...the eastern flank of Bluff Harbour, southern New Zealand, and is sheltered from the open sea by Tiwai...currently being extracted at Tiwai Point by New Zealand Aluminium Smelters Ltd. at a rate of several |  | | Journal (article/letter/editorial) | | functional relationships in science and technology; New Series, Volume 2, Group III 7-E 1451 ( B e c h m...et al.) 9-10 1534 Cuproscheelite, Atacama,Copiap6,New Remolinosmine (Sillitoe,R. H., ef a/.) 7-8 1345 Darapskite...Andhra Pradesh,Krishna, Kondapalli, Nakkal Banda quarry (Leelanandam, C.) 7-8 1353 Clay rnineralogy Methods...mountain,New Hampshire,Richmond, cation distribution l-2 3O4 (Papike,J. 1., et al.) North Carolina, New Hampshire...(Kreidler, Eric R., ef a/.) I-2 t70 Chlorite Polytypism,New York, Hudsonvalley, Kingston (Borst,RogerL., et al |  | | Journal (article/letter/editorial) | | replacing garnet (?), zircon, tourmaline, 579 Zaria region, tourmaline, 369 Congo (Kinshasa) Kobokobo, Kivu...syenite (pulaskite), Ca-rich nepheline, 67o plagioclase, Zambia Central Province, talc-kyanite-quartz...Labrador, anorthosite, plagioclase, dense massive and pseudomorphous plagioclase glass, 51 I Penticton...Cuyuna Range, Minnesota, stilpnomelane, 693 Franklin, New Jersey, stilpnomelane, 693 Grande Ronde, Oregon,...Mt. Widderin, Ballarat, struvite, newberyite, 381 NEW SOUTHWALES Broken Hill, myrmekite, muscovite, 57o |  | Coombs, D. S., Bosel, C. A., Kawachi, Y., Paterson, L. A. (2005) A silica-deficient, shallow-marine zeolite assemblage in the Foveaux Formation, Bluff Peninsula, New Zealand. Mineralogical Magazine, 69 (2) 137-144 doi:10.1180/0026461056920241 | Journal (article/letter/editorial) | | assemblage in the Foveaux Formation, Bluff Peninsula, New Zealand D. S. COOMBS*, C. A. BOSEL{, Y. KAWACHI{ AND...Geology Department, University of Otago, Dunedin, New Zealand ABS TR AC T A gonnardite-thomsonite-chabazite-calcite...and interacting with shell material and calcic plagioclase. In contrast, a dioritic clast in the boulder...Formation, Bluff Gabbronorite, Chatton Formation, New Zealand. K EY WORDS : Introduction BOSEL and Coombs...fossiliferous gabbroic boulder deposit in southern New Zealand (Fig. 1). Turnbull and Allibone (2003) show Foveaux |  | | Report (issue) | | Mineralogy 01 ivin e Or thopyroxene Clinopyroxene Plagioclase Amph ibo 1 e Spinel Magnetites and ilmenites...minor oxides versus Mg ratio Ternary plots of plagioclase compositions The subsystem FeO-Fe20 3-Ti02 showing...analyses of clinoproxene Electron probe analyses of plagioclase Electron probe analyses of amphibole Electron...of olivine, clinopyroxene, orthopyroxene, and plagioclase. Lherzolitic series rocks resemble those of tholeiitic...olivine+clinopyroxene, magnetite, hornblende, and plagioclase. Vanadium-rich cumulus magnetite, displaying |  | | Journal (article/letter/editorial) | | localities, and authors mentioned in the 27th List of new mineral names are not included in this index. Aberchirder...France, anal., opt., X-ray, 78I Aguilarite, New Zealand, anal., synthesis, 96I Akagan6ite, formation...with calcite and quartz, 48I Aratiatia, Taupo, New Zealand, rhyolitic lavas, 424 Ardelach, Nairnshire, granite...oriented exsolved titanomagnetite in, 49 Axinite, New Zealand, manganoan, anal., opt., 374 AXON (H. J.) and...Iceland, anal., 5o3 Anorthosite, Labrador, dense plagioclase glass in, Bertaghboy Bay, Canover, Connemara |  | | Journal (article/letter/editorial) | | originated from the mantle below the Pual Ridge region, which is interpreted to contain an ancient subduction...the high-Mg lavas consists mainly of olivine, plagioclase and clinopyroxene, with minor Cr spinel that...et al., 2003). Fractional crystallization of plagioclase, clinopyroxene and magnetite controls the compositional...Simplified tectonic setting of the Manus Basin region behind the New Britain (NB) arc (modified after Taylor et...early crystallizing phases such as olivine, plagioclase and clinopyroxene (Fig. 3a and b). In contrast |  | Chayka, Ivan F., Baykov, Nikolay I., Kamenetsky, Vadim S., Kutyrev, Anton V., Pushkarev, Evgenii V., Abersteiner, Adam, Shcherbakov, Vasily D. (2023) Volcano–Plutonic Complex of the Tumrok Range (Eastern Kamchatka): An Example of the Ural-Alaskan Type Intrusion and Related Volcanic Series. Minerals, 13 (1) 126 doi:10.3390/min13010126 | Journal (article/letter/editorial) | | eutectic crystallization of diopside or hornblende, plagioclase, and K-Na feldspar in plagio-wehrlites and gabbroic...Kamchatka [1,23–28], Venezuela [29], New South Wales [30,31], New Zealand [32], Siberia [2,33,34], Northwestern...this intrusion and related volcanic rocks, give new data on chromite-hosted melt inclusions, and discuss...cryptocrystalline aggregate (Figure 4B,C). In some samples, plagioclase and K-Na feldspar are abundant in the groundmass...low-temperature hydrothermal mineral (Figure 4C), while plagioclase and K-Na feldspar were replaced by albite and |  | | Journal (article/letter/editorial) | | PAPER Water-saturated magmas in the Panama Canal region: a precursor to adakite-like magma generation?...andesites from Cerro Patacon in the Panama Canal region. These andesites contain nodules of amphibole cumulates...Geotechnical Branch, Autoridad Del Canal De Panama, Panama City, Panama C. M. Hall Department of Geological Sciences... 2008). Anhydrous cumulates (e.g., olivine, plagioclase, pyroxene) are common in most sections of exposed...present new major and trace element data on amphibole-bearing andesites from the Panama Canal region of the |  | | Journal (article/letter/editorial) | | clinopyroxene (Mg#92–76) ! orthopyroxene (Mg#86–70) ! plagioclase (An97–84). The major and trace element geochemistry...and orthopyroxenes along with the absence of plagioclase in the ultramafic cumulates suggest their formation...Islands (Elthon et al. 1982; Komor et al. 1985) in New Foundland, Halmahera (Ballantyne 1992) in Indonesia]...arc tectonic settings [Greenhills complex (Spandler et al. 2003) in New Zealand, Aleutian Islands (DeBari...and >74, respectively), and by the absence of plagioclase as early fractionating phases coprecipitating |  | | Book | | 411 • New Hebrides NewCaled~ • • Norfolk I. Lord Howe I. • SOUTH PACIFIC OCEAN SEA NEW ZEALAND...BASIN I , .. The Geological Structure of New Zealand a volume in the REGIONAL GEOLOGY SERIES edited...the Oligocene, Landon Limestone Photograph: New Zealand National Publicity Studio photo J'ublished...STRUCTURE OF NEW ZEALAND J . T. Kingma I , • THE GEOLOGICAL STRUCTURE OF NEW ZEALAND JACOBUS T. KINGMA...Wiley-lnterscience Publication JOHN WILEY & SONS New York• London• Sydney• Toronto I \ • ' Copyright |  | | Journal (article/letter/editorial) | | blocks are dominantly of basalt rich in platy plagioclase phenocrysts together with olivine or olivine...varying modal proportions of diopsidic augite, plagioclase and olivine. The typical cumulus assemblages...often show undulose extintion bands and the plagioclase also shows signs of strain. This becomes most...also involve cumulus clinopyroxene, olivine and plagioclase. However, other gabbroic and doleritic blocks...olivine, with lesser clinopyroxene, spinel and plagioclase. The olivines are roughly equigranular with irregular |  | | Journal (article/letter/editorial) | | metamorphic core complexes in the Otago Schist, New Zealand—M.A. Forster and G.S. Lister Can the role of...the Yukon–Tanana terrane in the Finlayson Lake region, Yukon, Canada—Stephen J. Piercey, James K. Mortensen...Thomas R. Hart Petrogenesis of the Greenhills Complex, Southland, New Zealand: Magmatic differentiation and...Stephen Moorbath, and Martin J. Whitehouse 25 Plagioclase content of cyclic units in the Bushveld Complex...JOURNALS DOKLADY EARTH SCIENCES Vol. 389, No. 1–2, 2003 New data on geochemistry of the oldest (2.95–3.05 Ga) |  | Nebel, O., Münker, C., Nebel-Jacobsen, Y.J., Kleine, T., Mezger, K., Mortimer, N. (2007) Hf–Nd–Pb isotope evidence from Permian arc rocks for the long-term presence of the Indian–Pacific mantle boundary in the SW Pacific. Earth and Planetary Science Letters, 254 (3) 377-392 doi:10.1016/j.epsl.2006.11.046 | Journal (article/letter/editorial) | | of Geologic and Nuclear Science, Lower Hutt, New Zealand Received 28 June 2006; received in revised form...late Paleozoic arc rocks from South Island, New Zealand show evidence for the presence of Indian-type...Indian-type isotope signatures in arc rocks in the Central New Hebrides arc that are as old as 60 Ma. A mantle errorchron...Brook Street Terrane on the South Island of New Zealand. These rocks are well preserved and are overprinted...Street Terrane were emplaced in the western Pacific region east of SE Gondwana. The subduction zone, which |  | | Journal (article/letter/editorial) | | 2001; Ionov et al., 2002). In this study we present new major and trace element data from rocks and minerals...phenocrysts in a matrix of olivine, phlogopite, plagioclase (bytownite), and pseudoleucite (nepehline-K-feldspar...nA electron beam. 2.3. Trace element analysis A New Wave UP213 laser system with a wavelength of 213...clinopyroxenite and clinopyroxene + spinel + plagioclase + phlogopite ± k-feldspar ± nepheline forming...localities (Vanuatu Arc, Pacific Ocean, Greenhills complex, New Zealand, Cameroon) (Barsdell and Smith, 1989; |  | | Journal (article/letter/editorial) | | Oregon (Fig. 1). Alpine-type peridotites in the region are often metamorphosed and tectonized during a...with sphene and apatite was observed by us. Plagioclase, frequently saussuritized, was usually observed...medium-grained gneiss containing dominant hornblende and plagioclase usually with a few percent quartz and one percent...core zone is amphibole with or without plagioclase. Where plagioclase is present, the amphibolite core zone...hornblendite and pyroxenite, respectively. Where plagioclase is not present, the hornblendite core zone is |  | Cheng, Yanbo, Spandler, Carl, Mao, Jingwen, Rusk, Brian G. (2012) Granite, gabbro and mafic microgranular enclaves in the Gejiu area, Yunnan Province, China: a case of two-stage mixing of crust- and mantle-derived magmas. Contributions to Mineralogy and Petrology, 164 (4) 659-676 doi:10.1007/s00410-012-0766-0 | Journal (article/letter/editorial) | | 2008). Numerous faults are present in the Gejiu region, including the NNE-trending Longchahe, Jiaodingshan...rock-forming minerals are K-feldspar (*35 %), plagioclase (*25 %), quartz (15–25 %) biotite (2–10 %), and...major constituent minerals are clinopyroxene, plagioclase, hornblende, K-feldspar, and biotite. Accessory...that are often surrounded by large poikiolitic plagioclase and K-feldspar grains (Fig. 3d, e, f). Apatite...either as euhedral prismatic inclusions within plagioclase or as acicular crystals in the rock matrix (Fig |  | Sano, S., Offler, R., Hyodo, H., Watanabe, T. (2004) Geochemistry and Chronology of Tectonic Blocks in Serpentinite Mélange of the Southern New England Fold Belt, NSW, Australia. Gondwana Research, 7 (3) 817-831 doi:10.1016/s1342-937x(05)71066-2 | Journal (article/letter/editorial) | | Tectonic Blocks in Serpentinite M6lange of the Southern New England Fold Belt, NSW, Australia S. Sanol, R. Offle...melange of the Peel-Manning Fault System, southern New England Fold Belt, Australia. ’ h o meta-diorite...geochemistry, geochronology, southern New England Fold Belt. Introduction The New England Fold Belt (NEFB) extends...al., 1987; Coney et al., 1990). In the southern New England Fold Belt (SNEFB), Late Silurian to Carboniferous...the protoliths were derived. This paper reports new Rb-Sr and Sm-Nd isotope data, 40Ar/39Arage results |  | | Report (chapter) | | continental margin of SE Gondwana (South Island, New Zealand): summary and overview ALASTAIR H. F. ROBERTSON1*...Avalon, Lower Hutt 5010, New Zealand 3 395 Trafalgar Street, Nelson 7010, New Zealand H.J.C., 0000-0002-6845-0126;...chapter build on previous work, while in some cases new, or revised, interpretations are proposed. Preferred...Mortimer et al. 2017). Readers unfamiliar with New Zealand geology will find background information in Johnston...timescale of Gradstein et al. (2012) and the New Zealand timescale of Cooper (2004), as perfected by Raine |  | ODASHIMA, Norihiro, MORISHITA, Tomoaki, OZAWA, Kazuhito, NAGAHARA, Hiroko, TSUCHIYAMA, Akira, NAGASHIMA, Ryoko (2007) Formation and deformation mechanisms of pyroxene-spinel symplectite in an ascending mantle, the Horoman peridotite complex, Japan: An EBSD (electron backscatter diffraction) study. Journal of Mineralogical and Petrological Sciences, 103 (1) 1-15 doi:10.2465/jmps.070222b | Journal (article/letter/editorial) | | lherzolite, which is usually sandwiched between plagioclase lherzolite and harzburgite on various scales...collected from an outcrop at the entrance of abandoned quarry of the Toho Olivine Ltd. in the basal part of the...Nagahara, A. Tsuchiyama and R. Nagashima Horoman region at the southern end of the Hidaka mountain range...orthopyroxene from the Greenhills ultramafic complex, Bluff peninsula, Southland, New Zealand. Mineralogical...T. (1983) Steady diffusion model for olivine−plagioclase corona growth. Geochimica et Cosmochimica Acta |  | | Journal (article/letter/editorial) | | Hornblende is also common in these lithologies; plagioclase and orthopyroxene are rare or absent (Irvine...perhaps analogous to the present-day Indonesian region (Irwin ,et o/., 1977; Hamilton, 1977, 1978). According...magmatic arc spread across the Klamath Mountains region during the Middle to Late Jurassic; presumably...melanocratic gabbro by the incoming of interstitial plagioclase. Other gabbro occurrences show no gradation and...dunite-wehrlite unit' from the Greenhills ultramafic complex, Southland, New Zealand, which may be analogous |  | | Journal (article/letter/editorial) | | exposed arc-root sequences, such as the Greenhills Complex in New Zealand (Spandler et al., 2003). The Beiba...has a granular texture and consists of 40–45% plagioclase, 35–40% hornblende, 5% biotite, 6–7% sulfide...sulfide and 3–4% magnetite (Fig. 2a). Plagioclase laths vary in size from 2 mm 3 mm to 4 mm 6 mm, and show...is either enclosed in plagioclase or interstitial to hornblende and plagioclase. Sulfide occurs as pyrrhotite...combined zircon O–Hf isotope systems. Based on this new dataset, and in conjunction with published results |
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