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| 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...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...production of phonolite from trachyte in the East Otago Province has not been demonstrated. The mafic variants |
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| 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 |
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| 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...crystallisation at pressures between 8 - 1 3 kbar. With this new record, lherzolite-bearing lavas in Tasmania now...r o m t h e T a s m a n i a n T e r t i a r y volcanic p r o v i n c e a n d discusses t h e c o m p...many of the undersaturated lavas of the Tasmanian province (unpublished studies). 3. Accompanying xenocrysts |
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| 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) |
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| along the eastern margin of the Basin and Range province in northern Arizona and Utah has created a suite...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"...nature of the basaltic lavas in the Basin and Range province and related their origin to high surface heat...about 18 m.y. ago in the western Basin and Range province that marked the calc-alkalic to basaltic transition; |
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| 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::~. |
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| 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::~. |
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| of the Okete Volcanics, western North Island, New Zealand Roger M. Briggs 1 and Gordon G. Goles 2 1 Earth...Department, University of Waikato, Hamilton, New Zealand 2 Center for Volcanology, University of Oregon...tectonic environment of western North Island, New Zealand. The lavas and tufts of the Oketc Volcanics have...depletion. This paper describes an alkaline series of volcanic rocks ranging in composition from basanites to...(Briggs 1983) which is a formation of the Alexandra Volcanic Group (Kear 1960) situated in western North Island |
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| 20 km long, 2 to 4 km wide en echelon line of volcanic cones that extend in a south-southwest direction...part of the Erebus volcanic province (Kyle & Cole, 1974) of the McMurdo Volcanic Group (Harrington, 1958;...1968); the latter encompasses all Late Cenozoic volcanic rocks from Victoria Land, islands in the westerns...the Balleny Islands (Fig. 1). The Erebus volcanic province is composed of strongly undersaturated alkaline...Department of Geoscience, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801. I Journil |
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| California, Berkeley, California FIRST EDITION l NEW YORK TORONTO LONDON McGRAW-HILL BOOK COMPANY,...'\'olcanic and Plutonic Rocks. CharacterisLics of Volcanic Rocks. Characteristics of Plutonic Rocks. Outline...TRACEYTE VOLCANIC ASSOCIATION. Introductory Statement. The Volcanic Rocks of the Intra-Pacific Region. Volcanic...Leucite-Basalt Potash-Trachybasalt Association 9. VOLCANIC ASSOCIATIONS OF NONOROGENIC CONTINENTAL REGIONS...Diabase Association. The Volcanic Association of the Brito-Arctic Province. Petrogenesis of the Tholeiite |
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| above. GEOLOGICAL SETTING: THE MONTEREGIAN IGNEOUS PROVINCE AND THE WHITE MOUNTAIN MAGMA SERIES The Megantic...Monteregian Igneous Province of southern Quebec (Fig. 1). In the Monteregian Province, silica-undersaturated...syenites are only abundant in the eastern part of the province where the Palaeozoic sediments attain a considerable...June 20, 2014 The Monteregian intrusions define an east-west trending lineament that corresponds to a major...distribution of the White Mountain Magma Series (WMMS) of New England (Fig. 1). The dominance of silica-oversaturated |
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| Miocene-Oligocene volcanism of this region is part of the larger Tertiary volcanic province found throughout E. Australia...Australia. Within the S.E. Queensland region, the volcanism is strongly bimodal, and has emanated from...relatively aluminous in lavas of the Springsure volcanic centre. Very rare aluminous bronzite occurs in...interface region, with consequent crustal underplating and thickening beneath the Tertiary volcanic regions...volumetrically dominated by mafic lavas (Fig. 1). This region, in fact, forms a segment of the Tertiary-Pleistocene |
 | Dixon, T.H., Batiza, R., Futa, K., Martin, D. (1984) Petrochemistry, age and isotopic composition of alkali basalts from Ponape Island, Western Pacific. Chemical Geology, 43 (1) 1-28 doi:10.1016/0009-2541(84)90138-4 | Journal (article/letter/editorial) |
| trace-element concentrations are similar to other oceanic volcanic islands. Most major elements and compatible trace...homogeneous with respect to the ratio of ~Sr/8~Sr. New K- Ar age data are not consistent with the hypothesis...SAMPLE DATA Ponape is a highly eroded and dissected volcanic island with fringing outer coral reefs and inner...dense vegetation cover limit mapping of individual volcanic units. The studied samples were collected in road...in gabbro P-FL-B is the most calcic observed (bytownite, AnTs). Groundmass plagioclase is consistently |
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| CAMBRIDGE UNIVERSITY PRESS CAMBRIDGE LONDON • NEW YORK • MELBOURNE Published by the Syndics of the...House, 200 Euston Road, London nwi 2DB 32 East 57th Street, New York, NY 10022, USA 296 Beaconsfield Parade...classification of igneous rocks Granitic rocks Silicic volcanic and hypabyssal rocks Syenites Trachytes and microsyenites...when a magma solidifies in the lower parts of a volcanic conduit where the walls have been heated to a...on their mode of occurrence, into extrusive (or volcanic), shallow-seated intrusive (or hypabyssal), and |
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| Franklin) which are similar to those from Delegate, New South Wales [5], megacrysts of pyroxene, amphibole...Lake Keilumbete Nephetine mugearite, Mt. Anakie (east) C.I.P.W. calculated with Fe/O 3 adjusted to 2.00...have been found by the author only at Mt. Anakie (east) and Mt. Shadwell, though Irving [3] reported rare...the more evolved trachytes of the Newer Basalt province, where it is arfvedsonitic [1]. However, large...a r e d with mica which has crystallized under volcanic conditions these high-pressure samples have very |
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| oxfordjournals.org/ at Duke University on December 13, 2012 Region of X-ray production ELECTRON-PROBE ANALYSIS OF...from a constant value of J\Z occurs in the in the region of Z containing the elements found in rock-forming...olivines insufficient sample was available to permit new analyses and published data has been used. Both kyanite...adopted analyses for the silicates. For anorthite, bytownite, and sphene the adopted value for each element... a OOO Chemical* X.R.F.\ Adopted oSS OOO Bytownite • * 42-31 •»• 0-34 00 00 00 O ON O rn r- |
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| assemblages in a suite of xenoliths from Kilbourne Hole, New Mexico . 25 Edward L. Dromgoole and Jill D. Pasteris...and related rocks from Westland and Otago, South Island, New Zealand . Barbara A. Barreiro and Alan F....characteristics of boninite- and tholeiite-series volcanic rocks of the Mariana forearc and the role of an...Hugo T. Dummett The Cretaceous Arkansas alkalic province; A summary of petrology and geochemistry . 217...nephelinite to phonolite magmatism in the Balcones province, Texas . 293 D. S. Barker, R. H. Mitchell, and |
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| and 43 Tables Springer-Verlag Berlin Heidelberg New York 1980 Dr. ALOK K. GUPTA Department of Geology...questions arise in connection with the highly potassic volcanic association dominated by mafic and ultramafic...47 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 Volcanic Fields, East and Southeast of Ru wenzori, Uganda . .... . . . . . . . . . . . . . . . . Birunga Volcanic Province . . . . . . . . . . . . . . . . . Leucite-Bearing...West Kimberley, Australia Leucite-Bearing Rocks of New South Wales, Australia. . . . . . . . . . . . . |
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| introduction to igneous petrology London LONGMAN and New York Longman Group Limited Longman House, Burnt...in the United States of America by Longman Inc., New York © Longman Group Limited 1985 All rights reserved;...of igneous petrology 12 14 magma 16 rocks Volcanic eruptions and eruptive mechanisms Mantle of the...Classification of plutonic rocks Classification of volcanic rocks Selected references Abundance and distribution...petrology has expanded to accommodate a wide range of new information from both the Earth and the other terrestrial |
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| Terrestrial Planets and Meteorites Springer-Verlag New York Heidelberg Berlin Robert F. Mueller Goddard...Department of Geology Brooklyn College City University of New York Brooklyn, N.Y. 11210 Library of Congress...from Springer-Verlag. © 1977 by Springer-Verlag New York, Inc. Softcover reprint of the hardcover 1st...Considerable attention also has been devoted to volcanic processes. In our treatment of metamorphism in...petrology provides many tools for the evaluation of new concepts and ideas such as the recently proposed |
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| 1007/978-90-481-9390-5 Springer Dordrecht Heidelberg London New York Library of Congress Control Number: 2010931610...dissected plateau of flat-lying sedimentary and volcanic rocks that were deposited in Phanerozoic time...covers most of the continent. The glaciation of East Antarctica started during the Neogene and has formed...800,000 years into the past. The history of the East Antarctic ice sheet is also recorded by the geomorphology...sand the ice sheet has left behind. The ice of the East Antarctic ice sheet adjacent to the Transantarctic |
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| Some problems have been solved but the amount of new information presented at Oslo, based on close collaborative... A number of new geophysical techniques are revealed in the 1970 papers which throw new light on the...the older parts of Antarctica, and the infuence of new plate tec¬ tonic thinking not only in Antarctica...including the art of living and travelling in that region, no mean achievement. With authors situated throughout...marine D. C. Rex: K-Ar age determinations on volcanic and geophysical investigations in the Scotia |
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| DraH•ings by the Author • [E W. H. Freeman and Company New York San Francisco Project Editor: L arry Olsen...of \Jagn1atic Rocks 35 Chapter 3 Cale-Alkaline Volcanic Rock Bodies 62 Chapter 4 Cale-Alkaline Plutonic...Ca11te11ts Summary Chapter 3 Calc-All,aline Volcanic Rock Bodies 3 .1 Petrography 62 Chapter 5 Subalkaline...Basaltic ancl Ultrc11nafic R ock Bodies 146 3.2 Volcanic Processes and Field Relations 71 Extrusions of...Space-Time - Composition Relations in Cale-Alkaline Volcanic Arcs 99 5.1 5.2 5.3 5.5 105 5.6 Cale-Alkaline |
