 | | Journal (article/letter/editorial) | | from the differentiated Square Top intrusion, New South Wales, and in a New Zealand tinguaite vary significantly...successive "bulk" nepheline fractions in the Square Top sequence theralite--, tinguaite whereby Qz decreases...Geology and Geophysics, University of New England, Armidale 2351, Australia H. D. Hensel Department of Geology...Australian National University, Canberra 2601, Australia Editorial responsibility: R. A. Binns physical...alkaline hosts. Interstitial analcimes from the Square Top intrusion display extensive NaAI~-Si substitution |  | | Journal (article/letter/editorial) | | 1061 Clinopyroxenes from the Square Top intrusion, Nundle, New South Wales By J. F. G. WILKINSON,M.Sc....Department of Geology, University of New England, Armidale, New South Wales [Taken as read 3 November 1966]...analcime-tinguaite, clinopyroxene phenocrysts in the Square Top intrusion show limited compositional variation. The...ratios increased during differentiation. H E Square Top intrusion, a small plug-like mass with an exposed...miles west of Nundle, New South Wales, reveals the transition from base to top of analcime-olivine theralite |  | | Journal (article/letter/editorial) | | metadolerites of the Petroi Metabasalt, the New England fold belt, Australia DEEPANKER ASTHANA* Department of...Geophysics, The University of Sydney, N.S.W. 2006, Australia Abstract Relict clinopyroxenes from metadolerites...microprobe, show a limited compositional range near the diopside-augite boundary in the pyroxene quadrilateral...KEVWORDS: clinopyroxenes, metadolerite, New England fold belt, Australia. Introduction THE classic works of...Creek, in the Upper Macleay District of New South Wales, Australia 1 (Fig. 1 of Asthana and Leitch, 1985) |  | | Journal (article/letter/editorial) | | Volcanic Rocks from the East Otago Volcanic Province (New Zealand) and Related Rocks by D. s. COOMBS and j...Otago, New Zealand, and Department of Geology, University of New England, Armidale, New South Wales (Received...Tertiary sediments which form the coastline north and south of Brinns Point. Vitrophyric trachyandesite, North...km north of Dunedin, 96 km north-west, and 75 km south-west. Rocks belonging to this peripheral subprovince...is referred to the Oamaru and Dunedin 1:250 000 New Zealand Geological Survey sheets (Mutch, 1963; McKellar |  | | Journal (article/letter/editorial) | | considerable amounts of A1, Fe z+, and Ti in octahedral co-ordination (Table II), which are thought to increase...these clinopyroxenes is almost parallel to the diopside-hedenbergite join, and is limited to the compositional...sill, New South Wales (Wilkinson, I957), monzonite complex at Mount Dromedary, New South Wales (Boesen...(Boesen, I964), and Square Top intrusion, New South Wales (Wilkinson, I966). However, in the more differentiated...sill. The limited Fe2+/Mg 2+ variation in the Square Top pyroxenes has been attributed to the increasing |  | | Journal (article/letter/editorial) | | sample current at 10 nA, and the standards were diopside, albite and orthoclase. The accuracy and reproducibility...Mountains complex (New Zealand), and by Morse and Ross (2004) from the Kiglapait layered intrusion (Labrador)...pyroxene was described from an Otago theralite, New Zealand (Benson, 1942). The early brownish pyroxene...is a Ti-bearing aluminian ferrian subsilicic diopside. For simplicity it will be referred to as titanaugite...1997). In contrast, the green outer pyroxene is a diopside with <4% Al2O3, Na-poor and slightly more Ferich |  | | Book (edition) | | INCLUDING MATERIAL FROM THE TERRITORY OF PAPUA AND NEW GUINEA GERMAINE A. JOPLIN, B.A., PH.D., D.Sc. ...National Library of Australia card number and ISBN 0 207 12278 4 Registered in Australia for transmission...transmission by post as a book PRINTED "ill we IN AUSTRALIA BY HALSTEAD PRESS, SYDNEY To DR W. R. BROWNE...rocks from some parts of the Territory of Papua and New Guinea is also included in this edition and affects...thank Dr N. H. Fisher for allowing me to include New Guinea and Papuan material collected by members of |  | | Journal (article/letter/editorial) | | mineral assemblage evolves by progressive addition of new minerals, occasionally with the replacement of an...that composition from the primary liquid yields a new liquid, which may be recycled to yield a sequence...trace progressive saturation in new minerals, substitution of a new mineral for an old mineral, and cessation...forsterite to fayalite enstatite, bronzite, pigeonite diopside, hedenbergite, aegirine anorthite to albite microcline...subtracting varying percentages of the minerals from the new liquid until a liquid composition is reached for |  | | Book | | Congress Control Number: 2014947649 Springer New Delhi Heidelberg New York Dordrecht London © Springer India...Preface In Chap. 9, phase relations in the system diopside–nepheline–sanidine studied in air and under 1...chapter with reference to the system forsterite-diopside-leucite-anorthite. Association of silica-deficient...be very well understood from the study of the diopside-leucite-anorthite-SiO2 system. Experimental results...study of the systems forsterite-diopside-leucite-akermanite and diopside-nepheline-leucite-akermanite under |  | | Journal (article/letter/editorial) | | Geology University of lqew England, Armidale, I~ew South Wales 2351 l~eceived November 10, 1969 Abstract. A...vapor pressure of 310bars, the temperature of intrusion was 985 ~ C. Final crystallization of the laccolith...u r l b u t a n d Griggs (1939) t h a t this intrusion, a t e x t b o o k e x a m p l e of d i f f e...i n d e p e n d e n t l y s a m p l e d t h e intrusion, in a r e p e t i t i o n of t h e coincidence...for the purposes of this paper. The sill-like intrusion varies in thickness from approximately 40 to 70 |  | | Journal (article/letter/editorial) | | described b y Binns (1969) f r o m N e w S o u t h Wales and A u s t r a l ia a n d T a l b o t et al. (1963)...nepheline basanites HF 2 and HF 147 olivine bronzite diopside picotite HF 2 HF 147 80 (70-90) 15 (6-30) 4...crystallization path for I-IF 136. Abbreviations: Di diopside; Hd hedenbergite; Ac acmite; Ts total Tschermak's...which forms a complete solid solution series with diopside at very low pressures (Hijikata and Onuma, 1968)...aluminium in excess of sodium are incorporated in the diopside structure as ferri Tsehermak's (Ca Fe~3SiO8 Fts; |  | | Book (volume) | | olivine-plagioclase orthocumulate, Skaergaard intrusion, east Greenland. Crossed polars x60. A. B. Pigeonite...Halsted Press, a Division of John Wiley & Sons, Inc. New York First Edition © W. A. Deer, R. A. Howie and...Orthopyroxenes Pigeonite 162 Calcium Pyroxenes Diopside-Hedenbergite Augite Fassaite J ohannsenite 198...preparation of the typescript and also Longmans, Green & Co. for their continued cooperation. Department of... Preface to Second Edition For this completely new edition of 'Rock-Forming Minerals' we have maintained |  | | Journal (article/letter/editorial) | | glasses from some alkali basaltic lavas ,from New South Wales By J. F. G. WILKINSOn, M.Sc., PH.D. Department...Department of Geology, The University of New England, Armidale, New South Wales [Taken as read 10 March 1966] ...Province of north-eastern New South Wales. This Province is developed mainly on the New England Tableland, where...where it extends as a belt from south of Armidale north to Glen Innes and west to the Inverell area....rocks outcropping over an area greater than 2000 square miles. The analcimebasalt (olivine-analcimite) |  | | Journal (article/letter/editorial) | | clinopyroxene in the Gordon Butte rocks is from Fe-poor diopside to aegirine±augite in the malignites and nepheline...igneous lithologies of the Crazy Mountains area (south-central Montana), which include a sub-alkaline series...microsyenite. The latter consists of phenocrysts of diopside rimmed by 1 aegirine±augite, 2 Sr-rich apatite...paragenetically, and compositionally distinct types that may co-exist in some pegmatite veins. The earliest generation...Ti- and Mn-poor diopside with moderate Al contents (0.7±2.5 wt% Al2O3). The diopside phenocrysts show |  | | Journal (article/letter/editorial) | | pyroxene-poor. Pyroxenes occur most commonly as corroded diopside to diopsidic hedenbergite cores surrounded by...aenigmatite (Mitchell & Platt, 1978). In Center 2, intrusion of biotite-bearing alkaline gabbro is followed...of high level plutons during and subsequent to intrusion is controlled by cauldron subsidence along arcuate...within and adjacent to the plutons. This style of intrusion fits the fault and lineament patterns observed...complex (see below) and a similar mechanism of intrusion can be proposed to have occurred. We therefore |  | | Book (edition) | | 550 Swanston Street, Carlton South, Melbourne, Victoria 3053, Australia Kurfürstendamm 57, 10707 Berlin...Processes and Factors . . . . . . . . . . The Intrusion–Host Rock Interface . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . Tonga–Kermadec–New Zealand Arc . . . . . . . . . . . . . . . . . . ...14.1.1 Incipient Metamorphism: Crystallization of New Minerals and Preservation of Relict Protolith Fabrics...of heat and fluid transfer in crustal rocks, and new field discoveries have impacted our understanding |  | | Journal (article/letter/editorial) | | Volcfin Colima marks its present position, 5 km south of the Pleistocene volcano Nevado de Colima, and...Three major linear structures merge about 40 km south of Guadalajara in the western Mexican Volcanic Belt...Cretaceous. The intersection of these three structures south of Guadalajara appears to represent an incipient...Ce, comparable to apatites from the Skaergaard intrusion (Brown and Peckett 1977). Feldspars Ternary feldspar...of octahedral cation substitution in biotite and new thermodynamic data for apatite and biotite. Two types |  | | Journal (article/letter/editorial) | | & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer...indicates that shoshonitic volcanism in the far south of the eastern Pontides started in the early Campanian...that their mantle melt sources were similar. The new geological, geochemical and isotopic data suggest...Cretaceous magmatism in the north decreased towards the south, and a transition to monogenic calcalkaline–alkaline...volcanism developed in the southern zone. Yet farther south, andesitic igneous activity graded into the Cam |  | | Journal (article/letter/editorial) | | 20242 and Geology Department, University of Otago, New Zealand ABSTRACT Quartz and alkali feldspar from...immiscible globules of dense, supercritical, almost pure CO 2 fluid, at very high pressure, separated from the...respect to and forms at least a small amount of a new immiscible fluid phase, much richer in volatiles... however, an extreme case of immiscibility, the new fluid phase merely being of low density. There may...solution, salt crystals, the vapor, in part with CO 2 (formerly dense saline fluid). In addition, we |  | | Report (volume) | | to Zeolite Molecular Sieves. John Wiley & Sons, New York, 93 p Ch 16: p559: Missing from the first line...a decade or more. MSA is pleased to present this new work, diligently prepared over the past four years...soils (Chapters 6-12). Likewise, borrowing from new knowledge gained from studies of synthetic zeolites...Most of the material in this volume is entirely new, and "Natural Zeolites: Occurrence, Properties, Applications"...beginning this volume. It is our hope that this new, expanded volume will rekindle interest in this fascinating |
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