 | | Journal (article/letter/editorial) | | Contributions to Mineralogy and Petrology Contrib. Mineral. Petrol. 66, 9 1 - 104 (1978) 9 by Springer-Verlag...Group Division of igneous rocks into subalkalic and alkalic groups was made first by Iddings (I892)....Harker (1896, 1909). By his thesis, the subalkalic and alkalic groups represent two large branches of igneous...includes rocks ranging from basic to acidic composition and represents a genetic series. The tectonic conditions...subalkalic and alkalic branches were regarded (by mistake) as being characteristic of the Pacific and Atlantic |  | | Journal (article/letter/editorial) | | Contr. Mineral. and Petrol. 44, 101--115 (1974) 9 by Springer-Verlag 1974 Discovery Tablemount Basalt:...Basalt: Petrology and Geochemistry D. R. C. K e m p e Department of Mineralogy, British Museum (Natural History)...Graduate School of Oceanography, University of Rhode Island, Kingston, R.I. 02881, U.S.A. Received October...South Atlantic Ocean, has been described and analysed, and the rare earths determined. The basalt is...a quartznormative tholeiite but mineralogically and chemically (including trace elements) has affinities |  | | Book | | de Luxembourg With 106 Figures and 95 Tables =e in the text and on 8 Folders 1970 GEBRUDER BORNTRAEGER...character- ized, with scarce an exception, by vulcanism, and the yulcanological evolution, rock suites, geomorphological...intimate acquaintance with all the Atlantic islands, and there is every reason to believe this applies even...southern islands separate, for reasons given above, and no less to furnish a volume of reasonable magnitude...general, shown little interest, and indeed the American J.C. Branner and the Belgian, A. RENARD, are the |  | | Journal (article/letter/editorial) | | MUIR and c. E. T I L L E Y , with chemical analyses by j. H. SCOON Department of Mineralogy and Petrology...dredge hauls along with colonial branching corals and foraminifera from the central part of the Mid-Atlantic...the rocks come from two localities 5 miles apart and were collected during the autumn cruise of R.R.S...basalts or dolerites carrying a single pyroxene phase and most have transitional or slightly alkaline affinities...represented. Many of the specimens have chilled selvedges and can be shown to be pillow lavas. Important features |  | | Journal (article/letter/editorial) | | Contr. Mineral. and Petrol. 43, 125--147 (1974) 9 by Springer-Verlag 1974 Petrology of the Ninety East...East Ridge in the Indian Ocean consist of basalts and oceanic andesites. The basalts from the Ninety East...content ( > 11% ), higher TiO 2 content (2-3%), and variable K20 content (0.2-1.5%). Volcanics from other...aseismie ridges, i.e. the Cocos, the Iceland-Faeroe and the Walvis ridges, show a trend of differentiation...The Ninety East and the Ieeland-Faeroe ridges contain mildly tholeiitic basalts and oceanic andesit~s |  | | Journal (article/letter/editorial) | | EARTH AND PLANETARY SCIENCE LETTERS 12 (1971) 97-107. NORTH-HOLLAND PUBLISHING COMPANY ONE-ATMOSPHERE...ONE-ATMOSPHERE MELTING AND CRYSTALLIZATION RELATIONS OF LAVAS FROM ANJOUAN, COMORES ARCHIPELAGO, WESTERN INDIAN OCEAN...OCEAN R.N.THOMPSON* and M.F.J.FLOWER** Department o f Geology, The University, Manchester M13 9PL, England...1971 Revised version received 20 May 1971 Basaltic and differentiated lavas from Anjouan, Comores Archipelago...may be divided into three groups: hypersthene-normative, alkalic and basanitic, the latter two showing |  | | Journal (issue) | | issued in five series corresponding of the Museum, and an to the Departments Historical series. Parts...will contain about three or four hundred pages, and will not necessarily be completed within one calendar...Antarctic Territory Bertha Island, Sheehan Nunatak i Scullin Monolith Chemistry and discussion The Scotia...Clarence Island South Orkney Islands Inaccessible Islands (a) Coronation Island (b) Signy Island (c) Powell...Powell and Michelsen Islands (d) Fredriksen Island (e) (/) Laurie Island Graptolite Island. (g) . Basaltic |  | | Journal (article/letter/editorial) | | EARTH AND PLANETARY SCIENCE LETTERS 10 (1970) 106-114 NORTH-HOLLANDPUBLISHING COMPANY F I E L D E V...rhyohte, daclte alkah andeslte, and basaltic andeslte flows, from a hmlted and now deeply eroded area Coeval...alkah basalt magma erupted from more remote centres, and local actwlty has apparently continued untd a few...few thousand years ago or less Major element and Rb, Sr, K20 abundances allow the following rock types...types to be recognized early basamte flows and pipes; mildly undersaturated basalts, 'big-feldspar' basalts |  | | Journal (article/letter/editorial) | | Earth and Planetary Science Letters, 23 (1974) 286-296 © North-Holland Publishing Company, Amsterdam...A WORLDWIDE COMPARISON OF ALKALI OLIVINE BASALTS AND THEIR DIFFERENTIATION TRENDS RUDY R. SCHWARZER...Southern Universtty, and Department of Geology, Rtce Umverstty, Houston, Texas (USAJ and JOHN J.W. ROGERS...(AOB) and their differentiation series have been subdivided into continental, oceanic, or island-arc ...to the inferred crustal environment at their time and place of eruption. No systematic differences have |  | | Journal (article/letter/editorial) | | THE PETROS PETROCHEMICAL DATA BANK DAVID L. BARR and FELIX E. MUTSCHLER Department of Geology,Eastern...Eastern WashingtonUniversity, Cheney, WA 99004,U.S.A. and OWEN P. LAVIN Department of Geological Sciences, Queens...of interactive FORTRAN IV programs for accessing and operating on majorelement whole-rock chemical analyses...on user-supplied criteria, normativecalculations and rock classification,graphical displays including...including histograms, X-Y plots, triangular plots, and various statistical analyses based on the SPSS System. |  | | Journal (article/letter/editorial) | | Geology and Geophysics, Universio of Oklahoma, Norman, OK 73019, USA b Department of Earth and Planetary...marginal facies to quartz mangerite and massif anorthosite intrusive bodies and as dikes within a variety of...P, K, Ba, Nb, La, Ce, Zn, Ga, Zr and Y characterize these rocks and are distinctive of many matic lithologies...worldwide. Characteristically low concentrations of Ni and Cr, in conjuction with low Mg numbers, have been...Ratios of incompatible trace elements and patterns on rare earth and ‘spider’ diagrams collectively indicate |  | | Journal (article/letter/editorial) | | Mineral. and Petrol. 38, 237--260 (1973) 9 by Springer-Verlag 1973 Evolution of Basaltic and Differentiated...recognised on Anjouan: 'hypersthenenormative', ' alkalic' and 'basanitic', which appear in that order with an eruptive...construction, 2) peripheral fissure-controlled activity, and 3) rejuvenescent (posterosional) eruptions. Differentiated...three chemical groupings, and trend mainly towards undersaturated trachyte and phonolite. Those trends...initial removal of olivine and elinopyroxene, followed by Fe-Ti oxides, apatite and amphibole from arrested |  | | Journal (article/letter/editorial) | | Lineages and Fractionation Trends in Undersaturated Volcanic Rocks from the East Otago Volcanic Province...Province (New Zealand) and Related Rocks by D. s. COOMBS and j . F. G. WILKINSON ABSTRACT The petrology...sodic lavas and shallow intrusives whose compositions range from alkali basalt, basanite, and nephelinite...nephelinite to trachyte and phonolite. A range of relatively potassic volcanic rocks is also developed in the... The degree of undersaturation and ratios such as (FeO+Fe2O3):MgO and K,O:Na,O vary widely in rocks with |  | | Journal (article/letter/editorial) | | Mineralogy and Magmatic Evolution of the Basaltic and Trachytic Lavas from Gough Island, South Atlantic...Atlantic Departments of Geology and Geochemistry, University of Cape Town, Rondebosch 7700, South Africa...1984; in revised form 5 July 1984) ABSTRACT The Gough Island lavas range from picrite basalt through to sodalite-bearing...group of hypersthene normative tholeiitic basalts does occur. The oldest lavas on the island, represented...Lower Basalt series, are approximately 10 m.y. old and the youngest are the Upper Basalts with an age of |  | | Journal (article/letter/editorial) | | The Petrology of Rodriguez Island, Indian Ocean Abstract: Rodriguez Island is offset from the center...phonolitic segregation veins and occasional pyroclastic deposits. Gabbroic xenoliths and xenocrysts, which are...are widely distributed and locally abundant, are interpreted as fragments of a layered intrusion (cryptic...chamber at an earlier period of the volcano's history, and brought to the surface during a rejuvenation phase...activity. This phase, which has produced the present island, seems to have occurred after marine planation |  | Dickey, John S., Frey, Frederick A., Hart, Stanley R., Watson, E.Bruce, Thompson, Geoffrey (1977) Geochemistry and petrology of dredged basalts from the Bouvet triple junction, South Atlantic. Geochimica et Cosmochimica Acta, 41 (8) 1105-1118 doi:10.1016/0016-7037(77)90105-3 | Journal (article/letter/editorial) | | Pergamon Press. Printed in Great Britain Geochemistry and petrology of dredged basalts from the Bouvet triple...FREDERICK A. FREY, STANLEYR. HART and E. BRUCE WATSON Department of Earth and Planetary Sciences, Massachusetts...Institute of Technology, Cambridge, MA 02139, U.S.A. and GEOFFREYTHOMPSON Woods Hole ~~nographic Institution...near the triple junction, and from a spreading center east of Bouvet Island differ from normal mid-ocean...concentrations of K and other large-ion-lithophile elements, higher s’Sr.s%r ratios and rare earth element |  | | Report (chapter) | | Publications A combined chemical and Pb-Sr-Nd isotope study of the Azores and Cape Verde hot-spots: the geodynamic...implications G. R. Davies, R. A. Cliff, M. J. Norry and D. C. Gerlach Geological Society, London, Special...2014 A combined chemical and P b - S r - N d isotope study of the Azores and Cape Verde hot-spots: the...A. Cliff SUMMARY: The mafic lavas of the Azores and Cape Verde Islands are of a highly varied composition...composition, reflecting a complex history of magma genesis and a variety of source compositions. The lavas of the |  | | Journal (article/letter/editorial) | | Mineralogy and Petrology (1992) 46:259-289 Mineralogy ano Petrology © Springer-Verlag 1992 Printed... Geochemical Discrimination Between Shoshonitic and Potassic Volcanic Rocks in Different Tectonic Settings:...Settings: a Pilot Study D. Miiller, N. M.: S. Rock, and D. I. Groves Key Centre for Strategic Mineral Deposits...subdivisible into initial (e.g. Marianas) and late (e.g. Sunda Arc); and Within-Plate (e.g. inland N. American...are associated with world-class gold and base metal deposits, and can be important in tectonic reconstruction |  | | Journal (issue) | | OVERSEAS GEOLOGY AND M I N E R A L RESOURCES VOLUME 7, N U M B E R 4 INCLUDING INDEX FOR VOLUME 7 LONDON...T E RUTILE I L M E N I T E B E R Y L Z I R C O N AND O T H E R MINERALS • FERRO-ALLOYS • BUYERS A N D...of ocular. I K. & B. Laboratory Equipment Hand and Motor Driven Jaw Crushers Pulverizers, Grinding Mills...Agitators, Feeders. E l e c t r a -magnets Filters and Dryers. Continuous Plants 500 Lbs/hour capacity....S , R A R E EARTHS, B A S E M E TA L S , O R E S AND R E S I D U E S , E T C . ii ,-..1.-.-•,,..,. |  | | Journal (article/letter/editorial) | | (1992) 110:253-268 Contributions to Mineralogy and Petrology 9 Springer-Verlag 1992 Petrogenesis of...11~ to 14~ Anton P le Roex 1'3, Henry J B Dick 2, and Ronald T Watkins 1 1Department of Geology, University...sampled from the Southwest Indian Ridge between 12 and 15~ during Leg ANT IV/4 of the F.S. P O L A R S T...highly K-enriched (0.5-1.77 wt% K20 ) alkali basalts and hawaiites. Mgnumbers indicate that many of the lavas...(170-470 ppm) and Sr (258-460 ppm). Incompatible-element ratios such as Zr/Nb (3-5) and Y/Nb (0.46-1.1) |  | | Journal (article/letter/editorial) | | 357-369, 1972 TITANIFEROUS IN BIOTITES DIKE ROCKS AND ASSOCIATED FROM DOZEN, TOKIKO Department OKI...Geology, National Science Museum, Tokyo Tristanites and trachytes occurring as dikes of Oki Dozen carry phenocrysts...clinopyroxene and iron oxide. Biotite and iron oxide are characterized by high TiO2 contents (up to 8 and 30 wt%...Fe+3/(Fe+3+Fe+2) ratios and lower TiO2 contents than the apparently fresh ones. Clinopyroxene and iron oxide show...Fe+3/(Fe+3+Fe+2) ratios and TiO1 contents, but biotite a negative correlation. Association of biotite and clinopyroxene |  | le Roex, Anton P, Dick, Henry J.B, Gulen, Levent, Reid, Arch M, Erlank, Anthony J (1987) Local and regional heterogeneity in MORB from the Mid-Atlantic Ridge between 54.5°S and 51°S: Evidence for geochemical enrichment. Geochimica et Cosmochimica Acta, 51 (3) 541-555 doi:10.1016/0016-7037(87)90068-8 | Journal (article/letter/editorial) | | in Local and regional heterogeneity in MORB from the Mid-Atlantic Ridge between 54.5’S and 51’S: Evidence...ROEX’, HENRY J. B. DICK’, LEVENTGULEN~,ARCH M. REID’ and ANTHONY J. ERLANK~ ‘Department of Geology, University...Ronde~h 7700, South Africa 2Department of Geology and Geophysics, Woods Hole Oceanographic Institution...Woods Hole, MA 02543, U.S.A. 3Department of Barth and Planetary Sciences, Massachusetts Institute of Technology...between the Bouvet triple junction at 54.5% 1“W and 5 1“S, show a range in texture from aphyric to highly |  | | Journal (article/letter/editorial) | | Mountains and Messum Igneous Complex, Namibia. Part I: Geochemical Evidence of Early Cretaceous Tristan Plume...Plume Melts and the Role of Crustal Contamination in the Parana´–Etendeka CFB A. EWART1∗, S. C. MILNER2†...MILNER2†, R. A. ARMSTRONG2‡ AND A. R. DUNCAN2 1 DEPT. OF EARTH SCIENCES, UNIVERSITY OF QUEENSLAND, ST. LUCIA...ACCEPTED JULY 30, 1997 The Goboboseb Mountains and Messum Complex represent a major Cretaceous (132...province. The eruptives comprise the Awahab Formation and are represented by a lower sequence of mafic lavas | | | Journal (article/letter/editorial) | | PART OF JAPAN MAKOTO SAWAI Anjo High School, Aichi and MITSUO SHIMAZU Niigata University, Niigata In...distributed, numerous alkali basalt dikes and sheets occur and some of them were studied by Kuno (1960)...(1960). A trachyte dike also occur in the area and it is most alkaline among the rocks of the area. The trachyte...rohedenbergite, fayalite, arfvedsonite, plagioclase and alkali feldspar. Groundmass minerals are alkali feldspar...feldspar sodic ferrohedenbergite, aenimgatite and titanomagnetite. The trachyte includes small xenoliths |  | | Journal (article/letter/editorial) | | partitioning between olivine and silicate melt: implications for melt structure and calcium content of magmatic...that control calcium partitioning between olivine and melt in a magmatic environment was undertaken using...alumina, alkali and ferrous iron present in the coexisting melt. Oxygen fugacity and temperature are...model describing Ca partitioning between olivine and melt is developed. When applied to natural olivines...melt composition during olivine crystallization and/or to assess whether an olivine is in equilibrium |
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