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| Mineralogy and Petrology 9 Springer-Verlag 1990 Geochemistry of highly-undersaturated ocean island basalt...Ocean: Fernando de Noronha and Trindade islands Barry L. Weaver School of Geology and Geophysics, University...de Noronha and Trindade comprise a diverse magmatic series ranging from nephelinites and basanites to...to phonolites and, on Fernando de Noronha, trachytes. All rock types are highly silica undersaturated...Noronha trachytes), and have high abundances of incompatible trace elements and strongly LREE (light |
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| 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 |
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| 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 |
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| BETWEEN DIFFERENT TYPES OF MID-OCEAN RIDGE BASALTS AND CONTINENTAL THOLEIITES WITH THE N b - Z r - Y DIAGRAM...between different types of mid-ocean ridge basalts and continental tholeiites with the Nb--Zr--Y diagram...diagram using the immobile trace elements Nb, Zr and Y. The diagram distinguishes between different types...ridges and "P-type MORB", from plume-influenced regions), within-plate tholeiites (WPT), and withinplate...arc basalts (VAB) plot within both WPT and N-type MORB fields and thus cannot be distinguished from these |
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| Assemblage in a Near-Saturated Hawaiite Janice Knutson and Trevor H. Green School of Earth Sciences, Macquarie...megacrysts and cumulates of olivine, clinopyroxene, orthopyroxene, plagioclase, ilmenite and apatite in...5 15 kb and 0 5% HzO, orthopyroxene was identified in only one run with 2% H20 at 1 040~ C and 6.5 kb...clinopyroxene and Fe-Ti oxide. The early appearance ofplagioclase in the" dry" experimental runs and amphibole...in silica-undersaturated alkali-olivine basalts and these have been interpreted as substantiating experimental |
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| system: mineral chemistry and trace element partitioning between Mg-hastingsite and alkali basaltic melt M...M VICCARO, C FERLITO and R CRISTOFOLINI* Dipartimento di Scienze Geologiche, Università...in the volcanics of the whole Etnean succession and commonly are represented by kaersutites to titanian...been found in lavas and tephra from the 2001 eruption at Mt. Etna. New major (EMPA) and trace element (LAM-ICP/MS)..., AlVI , K and Mg# values, which are higher in Mg-hastingsite than in kaersutite. Ti and Na are lower |
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| Contributions to Mineralogy and Petrology Contrib. Mineral. Petrol. 72, 1-18 (1980) 9 by Springer-Verlag...Petrology and Geochemistry of the Banks Peninsula Volcanoes, South Island, New Zealand R.C. Price I and S.R...volcanic sequence of the twin volcanoes of Lyttelton and Akaroa, Banks Peninsula, New Zealand a number of...Valley Formation) was erupted about 32 m.y. ago and is of transitional or mildly tholeiitic chemistry...of basaltic m a g m a into the crust. Between 12 and 9.7 m.y. a large volcanic dome, composed mainly of |
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| Contributions to Mineralogy and Petrology Contrib Mineral Petrol (1987) 97:279 291 9 Springer-Verlag1987...fractionation, mixing and assimilation G. Paul Wyers and Michael Barton Department of Geology and Mineralogy, The...OH 43210, USA Abstract. Trace-element and preliminary Sr- and O-isotopic data are reported for a transitional...ne-trachybasalt, hy-trachybasalt, hy-trachyandesite and Q-trachyte. Rb, Sr and Ba contents, as well as K/Rb ratios,...of oceanic islands and those of K-rich alkaline lavas of continental regions and are consistent with |
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| Carlton Victoria 3053, Australia DISTRIBUTORS USA and Canada Blackwell Scientific Publications Inc PO Box...granted by The Geological Society for libraries and other users registered with the Copyright Clearance...Typeset, printed and bound in Great Britain by William Clowes Limited, Beccles and London Library of...metasomatism--perspective and prospect vii ix 1 MENZIES, M. Alkaline rocks and their inclusions: a window...experimental studies 29 LE Bhs, M. J. Nephelinites and carbonatites 53 TWYMAN, J. D. & GITTINS, J. Alkalic |
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| The geology and petrology of Bouvetoya, south Atlantic Ocean PALL IMSLAI~TD, JORGEN G. LARSEN, TORE PRESTVIK...Prestvik, T. & Sigmond, E. M. 1977: The deoiogy and petrology of Bouvet~ya, south Atl;mtic Ocean. Lithos... 213-234, Oslo. ISSN 0024-4937. The Quaternary island Bouvetoya is situated near the triple junction...intermediate and peralkaline silicie rocks ot a transitional rock series are recorded. Major and trace element...element chemistry, model calculations and petrographic observations do not favour a closed sy-~tem fractional |
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| NATHAN^anrfC. K. VAN KIRKf Department of Geology, and Computer Centre, Acadia University, Wo\fville, Canada...experiments, however, have studied special questions, and the autonomous results resemble separate pieces of...pieces of that experimental heritage into a general and deterministic model of magmatic crystallization,...capable of predicting the unique series of minerals and liquids produced by the crystallization under specified...atmospheric pressure, tracing the mineral assemblages and mineral compositions in equilibrium with a sequence |
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| An introduction to’ SAF Magmas and magmatic rocks An introduction to igneous petrology Eric...Middlemost Department of Geology and Geophysics University of Sydney MAGMAS AND MAGMATIC ROCKS mV pp | mV...introduction to igneous petrology London LONGMAN and New York Longman Group Limited Longman House...Publication Data Middlemost, Eric A.K. Magmas and magmatic rocks : an introduction to igneous petrology...Publication Data Middlemost, Eric A.K., 1936Magmas and magmatic rocks Bibliography: p. 235 Includes index |
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| TEKTITES A N D THEIR O R I G I N 5. C.J. Allègre and S.R. Hart (Editors) TRACE ELEMENTS I N IGNEOUS P...The Netherlands Distributors for the United States and Canada: ELSEVIER SCIENCE PUBLISHING C O M P A N Y... texts and, on the other hand, more advanced texts heavily predicated on a thermodynamic and/or chemical...to the subject. Furthermore, in the last decade and a half, say since the appearance of the prescient...about igneous rocks" with evidence and conclusions from both young and old igneous rocks. Ophiolites, Proterozoic |
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| Great Britain by Cox & Wyman Ltd, London, Fakenham and Reading Library of Congress cataloguing in publication...rocks and their textures The classification of igneous rocks Granitic rocks Silicic volcanic and hypabyssal...hypabyssal rocks Syenites Trachytes and microsyenites Monzonites, monzodiorites, monzogabbros Latites, latite-andesites...latite-andesites, allied volcanics and their hypabyssal equivalents Diorites Andesites and their hypabyssal equivalents...Gabbros and related rocks Basalts and dolerites Ultramafic igneous rocks Nepheline syenites and allied |
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| org/details/georefthesaurusgOOOOunse GeoRef Thesaurus and Guide to Indexing Fifth Edition Ruth H. Shimomura...LLbr®*1? 1^89 Earlier Editions GeoRef Thesaurus and Guide to Indexing, First Edition Copyright ©1977...Edition, 1981 Fourth Edition, 1986 GeoRef Thesaurus and Guide to Indexing, Fifth Edition Copyright ©1989... Contents Acknowledgement .iv Introduction.v Source and Development of the Vocabulary .v Changes in this...Indexing .vi Searching .vi i Autoposting.viii Singular and Plural Terms.viii Term Relationships .viii Notes |
