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Sample search results for: a-type granitic magmatism

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1 Isotope systematics of ore-bearing granites and host rocks of the Orlovka-Spokoinoe mining
 

Summary:  ). The related Li-F and alkaline granites represent A- type granites with high heat production. Sr, Nd and O... ). In recent years the evolution of rare-metal granites, formation stages and relation to intraplate magmatism... suites and closely associated comendites of ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
2 Lithium isotopic systematics of A-type granites and their mafic enclaves: Further constraints on the Li isotopic composition of the continental crust
 

Summary:  Lithium isotopic systematics of A-type granites and their mafic enclaves: Further constraints... granite Mafic enclave Continental crust Lithium concentrations and isotopic compositions of 39 A-type... . Lithium concentrations (2.8 to 80 ppm) in 29 A-type granites are ...

  

Source: Mcdonough, William F. - Department of Geology, University of Maryland at College Park

 

Collection: Geosciences

 
3 Western Grenville Province holds key to midcontinental Granite-Rhyolite Province enigma
 

Summary:  be made. ABSTRACT The Mesoproterozoic Granite-Rhyolite Provinces in North America consist of A-type... or directly from mantle-derived rocks near the margin; (3) the A-type granites and coeval source and host... A-type granites in Laurentia: Hf isotope evidence. ...

  

Source: Beaumont, Christopher - Department of Oceanography, Dalhousie University

 

Collection: Geosciences

 
4 Some geodynamic and compositional constraints on "postorogenie" magmatism
 

Summary:  that the "postorogenie" A-type granites crystallized from wholly molten magma at temperatures >900 oC (Clemens et a... Clemens, J.D., Holloway, J.R, and White, AJ.R., 1986, Origin of an A-type granite... of A-type granites with particular referenceto southeastern ...

  

Source: Sandiford, Mike - School of Earth Sciences, University of Melbourne

 

Collection: Geosciences

 
5 Petrology and geochemistry of the Lyngdal granodiorite (Southern Norway) and the role of
 

Summary:  crystallisation in the genesis of Proterozoic ferro-potassic A-type granites Michel Bogaerts,a , Bruno Scailletb... -potassic A-type continuous trend from quartz monzodiorite to granite (56­72 wt.% SiO2). In Harker diagrams... during the Proterozoic. They are mainly metaluminous to weakly peraluminous ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
6 NATURE |VOL 408 |7 DECEMBER 2000 |www.nature.com 669 review article
 

Summary:  . The A-type Mount Scott granite sheet: importance of crustal magma traps. J. Geophys. Res. 100, 15799... and emplacement2,3 Ðthat operate over length scales ranging from 10-5 to 106 m. The nature of granite magmatism... magmatism The formation of granite intrusions ...

  

Source: Lee, Cin-Ty Aeolus - Department of Earth Science, Rice University

 

Collection: Geosciences

 
7 Jownul ofSourh Amrritun Eorrh Scirncrs. Vol. 10. Nos. 3-4. pp. 321-330. 1YYl 0 1997 Elsevier ScienceLtd
 

Summary:  Complex represents an unequivocal example of Archaean A-type granite magmatism. The chemical data suggest... de Geologiu du Amciinitr. UeltGrr. 291-294. Anderson, J.L. and Bender, E.E. A-type granitic magmatism... to be an unequivocal example of ...

  

Source: Boullier, Anne-Marie - Laboratoire de Géophysique Interne et Tectonophysique, Observatoire de Grenoble, Université Joseph Fourier

 

Collection: Geosciences

 
8 Late-Stage Mafic Injection and Thermal Rejuvenation of the Vinalhaven Granite,
 

Summary:  of the overlying granitic crust. Many dominantly granitic plutons of the Coastal Maine Magmatic Province contain... Late-Stage Mafic Injection and Thermal Rejuvenation of the Vinalhaven Granite, Coastal Maine R. A... The Vinalhaven intrusive complex consists mainly of coarse-grained ...

  

Source: Mcdonough, William F. - Department of Geology, University of Maryland at College Park

 

Collection: Geosciences

 
9 Determination of the origin of salinity in granite-related fluids: evidence from chlorine isotopes in fluid inclusions
 

Summary:  different granites in which examples of magmatic fluid inclusions have been identified. The Capitan pluton... with an evolved magmatic phase. The lowest temperature SW-England fluids (N­S veins) are younger than the granite... -England, that fluids infiltrat- ing granitic rocks do not ...

  

Source: Earth Sciences, University of Leeds

 

Collection: Geosciences

 
10 Journal o/Ihe Geological Soeien', London, Vol. 159,2002, pp 5"7-575. Printed in Great Britain. Granite production in the Delamerian Orogen, South Australia
 

Summary:  granites and volcanic rocks of S- and A-type atnnitics occurred. As exposed on the south coast of Kangaroo... -crustal matic intrusions where closed- system fractionation dominates to produce A-type granite. The extent... in the composition of granite magmas, from syntectonic I-S types to ...

  

Source: Sandiford, Mike - School of Earth Sciences, University of Melbourne

 

Collection: Geosciences

 
11 Colloque Transmet, 6-7 juillet 2006 MODE OF FORMATION OF GOLD-BEARING MINERALIZATION
 

Summary:  characters 3.1. Magmatic features Microstructural observations performed on magmatic features (granite, dykes... structures meet in dykes, dykes root areas and granite roof record deformation patterns evolving from sub-magmatic... is localized within the last structure emplaced. This ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
12 ELSEVIER Tectonophysics 307 (1999) 113133 www.elsevier.com/locate/tecto
 

Summary:  ­103. Clemens, J.D., Holloway, J.R., White, A.J.R., 1986. Origin of an A-type granite: experimental constraints... that their slightly unequant shape is a primary magmatic feature. The fabric of the magnetite-poor granites... fabrics should be regarded as magmatic. The magnetic ...

  

Source: Ferré, Eric - Department of Geology, Southern Illinois University

 

Collection: Geosciences

 
13 Barton and Young: Non-pegmatitic beryllium deposits Chapter 14.
 

Summary:  because of their economic importance and popular appeal. They form with granitic pegmatites and magmatic... and volcanic rocks, Cr and Mg in ultramafic, mafic and some sedimentary rocks, and Sc and in Fe+3 in A-type... and Evensen, this volume; Kovalenko et al. 1977). Accessory magmatic beryl is described in ...

  

Source: Barton, Mark D. - Department of Geosciences, University of Arizona

 

Collection: Geosciences

 
14 Evolution of calc-alkaline to alkaline magmatism through Carboniferous convergence to Permian transcurrent tectonics,
 

Summary:  to Middle Permian magmatic association of high-K calc-alkaline, transitional and alkaline granites suggests... Evolution of calc-alkaline to alkaline magmatism through Carboniferous convergence to Permian... , Australia Abstract Continuous magmatic activity occurred in the western Chinese Tianshan, Central ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
15 Colloque Transmet, 6-7 juillet 2006 COMPARED MODEL OF FORMATION OF AU, SN-W, AND TA-NB-
 

Summary:  in Gloaguen et al, this volume): i) emplacement of magmatic bodies (G1 to G3 granites; G2 pegmatites... on the roof of granites; iii) mineralizations are systematically hosted by magmatic sills and dykes; iv... by a high- temperature metamorphism leading to local development of migmatites. Four generations ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
16 Large-volume granitic plutons in the Burro Mountains, southwestern New Mex-
 

Summary:  and Thomas, 1985), A-type granites (Anderson and Mor- rison, 1992), AMCG (anorthosite, mangerite, charnockite... ). The plutons in this study lie within the metaluminous magnetite series of the Lauren- tian A-type granites... . (2001), the so- called "A-type" granites ...

  

Source: Amato, Jeff - Department of Geological Sciences, New Mexico State University

 

Collection: Geosciences

 
17 Role of magma pressure, tectonic stress and crystallization progress in the emplacement of syntectonic granites. The A-type Estrela
 

Summary:  of syntectonic granites. The A-type Estrela Granite Complex (Caraja´s Mineral Province, Brazil) C.E.M. Barros a... : Brazil; Caraja´s Mineral Province; Archaean; A-type granites; Syntectonic pluton; Phase layering 1... plutons. Our study is based on an Archaean ...

  

Source: Boullier, Anne-Marie - Laboratoire de Géophysique Interne et Tectonophysique, Observatoire de Grenoble, Université Joseph Fourier

 

Collection: Geosciences

 
18 Z .Lithos 45 1998 255279 Pan-African, post-collisional, ferro-potassic granite and
 

Summary:  -collisional granite magmatism represented both by mantle-derived I-types and Z .crust-derived A-types Pearce, 1996... of Whalen et Z .al. 1987 , all the granites fall in the A-type field Z .Fig. 9c . A further distinction... -collisional; Nigeria 1. Introduction ...

  

Source: Ferré, Eric - Department of Geology, Southern Illinois University

 

Collection: Geosciences

 
19 Rhyolites and their Source Mushes across Tectonic Settings
 

Summary:  in the A-type granite pluton of Suzhou (Eastern China): the key role of fluorine. Journal of Petrology 35... ^472.. Clemens, J. D., Holloway, J. R. & White, A. J. R. (1986). Origin of an A-type granite; experimental... . (2001). Are A-type granites the ...

  

Source: Washington at Seattle, University of - Department of Earth and Space Sciences, Physical Petrology Group

 

Collection: Geosciences

 
20 Tectonic setting and exhumation history of the PingtanDongshan Metamorphic Belt along the coastal area, Fujian Province, Southeast
 

Summary:  . The late Cretaceous igneous rocks include A-type granite, ignimbrite and basaltic lava, which indicate... Cretaceous I- type granites and minor Late Cretaceous A-type granites, which are commonly explained... and volcanic rocks, as well as the coeval A-type ...

  

Source: Chen, Wen-Shan - Department of Geosciences, National Taiwan University

 

Collection: Geosciences


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21 ELSEVIER Tectonophysics 312 (1999) 133 www.elsevier.com/locate/tecto
 

Summary:  , and the magmatic fabric in the thicker, composite planar granite sheet on the left-hand side of the field of view... of granite, ¾10 m in diameter, to show a magmatic fabric parallel to the margin of the body and stoped... of residual material toward the center of the body, view to the northeast. (c) ...

  

Source: Solar, Gary S. - Department of Earth Sciences and Science Education, Buffalo State College

 

Collection: Geosciences

 
22 Geophysical Research Abstracts, Vol. 5, 04926, 2003 c European Geophysical Society 2003
 

Summary:  SIGNIFICANCE OF DYKES AND GRANITE FROM A SAME PLUTON ­ AN EXAMPLE FROM THE FRENCH MASSIF CENTRAL J.-Y. Talbot... -Yves.Talbot@univ-orleans.fr) The relationships between plutons and dykes of granite have been the topic of many studies since the hypothesis... of "dyke propagation" was proposed as the main mode of ascent and emplacement of ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
23 Geological Society of America Early Mesoproterozoic tectonic history of the southwestern
 

Summary:  and back-arc magmatism along the Laurentian margin between ca. 1500 and 1450 Ma. A-type charnockites... O)), respectively. Most A-type granites are classified as "ferroan" (Frost et al., 2001). g.a.--gneiss association... -rhyolite provinces is debated. Early models focused on theA-type ...

  

Source: Beaumont, Christopher - Department of Oceanography, Dalhousie University

 

Collection: Geosciences

 
24 ABSTRACT, 2011 GSA Annual Meeting in Minneapolis (912 October 2011) Paper No. 190-4
 

Summary:  the regional magmatic history. The granitoids have an array of compositions, ranging from tonalite to granite... of magmatism is characterized by more evolved granodioritic to granitic compositions at 2730 Ma, and occurred... MAGMATISM IN THE NORTH CARIBOU GREENSTONE BELT, SUPERIOR ...

  

Source: 

 

Collection: Geosciences

 
25 The volcanicplutonic connection as a stage for understanding crustal magmatism
 

Summary:  the idea that granite was a magmatic rock, influential researchers claimed that the mechanisms responsible... The volcanic­plutonic connection as a stage for understanding crustal magmatism O. Bachmann a,, C... 's magmatism produces both volcanic and plutonic rocks. These two rock types share many ...

  

Source: Washington at Seattle, University of - Department of Earth and Space Sciences, Physical Petrology Group

 

Collection: Geosciences

 
26 Bulletin of the Czech Geological Survey, Vol. 76, No. 2, 7799, 2001 Czech Geological Survey, ISSN 1210-3527
 

Summary:  , ISSN 1210-3527 Magmatic and hydrothermal evolution of Li-F granites: Cínovec and Krásno intrusions... feldspar granites, Magmatic fractionation, Subsolidus alteration, Mass transfer, Stable isotopes, Eastern... -mail: stemprok@natur.cuni.cz Abstract. Geochemical and stable-isotope data for highly evolved ...

  

Source: Dolejš, David - Bayerisches Geoinstitut, Universität Bayreuth

 

Collection: Geosciences

 
27 Mesozoic magmatism and granitic dome in the Wugongshan Massif, Jiangxi province and their genetical
 

Summary:  Mesozoic magmatism and granitic dome in the Wugongshan Massif, Jiangxi province and their genetical... . Various granitic bodies formed in different magmatic stages display different isotopic compositions... scale granitic magmatism and the final doming of Wugongshan ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
28 The magmatic evolution of the Land's End pluton, Cornwall, and associated pre-enrichment of metals
 

Summary:  the magmatic to hydrothermal states from a mixture of immiscible phases. The Li-siderophyllite granites... , tourmaline granites and MQT appear to be the immediate magmatic precursors from which the hydrothermal fluids... granite is presented, based on field rela- tionships, ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
29 The Canadian Mineralogist Vol. 49, pp. 947-965 (2011)
 

Summary:  of A-type and peralkaline granitic rocks commonly host rare-metal mineralization represented... been reported for A-type granites from Suzhou in China (Charoy & Raimbault 1994) and El-Sibai in Egypt... little doubt that HFSE enrichment of peralkaline granitic intrusions is the ...

  

Source: Chakhmouradian, Anton - Department of Geological Sciences, University of Manitoba

 

Collection: Geosciences

 
30 Occurrence and Origin of Andalusite in Peraluminous Felsic Igneous Rocks
 

Summary:  ). Of particular importance is the evidence for magmatic andalusite in granites showing no significant depression... magmatic andalusite. (b) The combination of the peraluminous granite solidus (Johannes & Holtz, 1996... as an accessory mineral in many types of peraluminous felsic igneous rocks, including ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
31 ORIGINAL PAPER Zircon Hf isotope perspective on the origin of granitic rocks
 

Summary:  of Mesoproterozoic A-type granites in Laurentia: Hf isotope evidence. Earth Planet Sci Lett 243:711­731. doi:10... and prevalence of Na over K signals some A-type affinity and the high Sr/ Y ratios suggest that the melt... ORIGINAL PAPER Zircon Hf isotope perspective on the origin of granitic rocks from ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
32 Precambrian Research 109 (2001) 3972 Zircon U-Pb geochronology of the Ottawan Orogeny,
 

Summary:  granites that possess mildly A-type characteristics (McLelland and Whitney, 1980) and locally grade... Orogeny to the interval ca 1090­1035 Ma. The earliest of these consists of mildly A-type hornblende... of Adirondack granites have yielded ages constraining the principal tectonomagmatic events of the ...

  

Source: Selleck, Bruce - Department of Geology, Colgate University

 

Collection: Geosciences

 
33 ORIGINAL PAPER Archaean high-K granitoids produced by remelting of earlier
 

Summary:  thought to constitute the last major magmatic phase in Archaean terranes. Late K-rich granites in the Ntem... to Archaean tonalitic gneisses. They also show features of both the A-type and cordilleran granitoids (e... siliceous than peraluminous leucogranites. They share partial features of A-type and ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
34 Available online at www.sciencedirect.com Precambrian Research 160 (2008) 341356
 

Summary:  the characteristics of A-type granites; these are post-collisional granites. The U­Pb SHRIMP dating of zircons... -tectonic A-type granite (extensional phase) episodes at 610 Ma. Much of the uncertainty about the age of ED... /Al and Zr (Fig. 4B) indicates that the ...

  

Source: Stern, Robert J. - Department of Geosciences, University of Texas at Dallas

 

Collection: Geosciences

 
35 THE CAPE ANN PLUTONIC SUITE: A FIELD TRIP FOR PETROLOGY CLASSES John B. Brady, Department of Geology, Smith College, Northampton, MA 01060
 

Summary:  and plutonic arc rocks were intruded by Late Ordovician to Carboniferous A-type alkalic granites (Hermes... or both. As shown on Figure 12, these granites have compositions that are typical of A-type, anorgenic... -diorite. The xenoliths or magmatic pillows that occur in localized fields ...

  

Source: Brady, John B. - Department of Geology, Smith College

 

Collection: Geosciences

 
36 JournalqfStructuralGeology,Vol. 1I. No 3, pp. 349to 363. 1989 0191-8141/89 $03.(X)+ 0.00 Printed in Great Britain 1989Pergamon Presspie
 

Summary:  of lines of feldspar crystals in granitic veins, owing to drag against the wails during magmatic flow... to granite-solidus tem- peratures, they do not necessarily indicate a transition from magmatic to solid... in Great Britain © 1989Pergamon Presspie A review of criteria for the identification of ...

  

Source: Lee, Cin-Ty Aeolus - Department of Earth Science, Rice University

 

Collection: Geosciences

 
37 Precambrian Research 98 (1999) 271305 www.elsevier.com/locate/precamres
 

Summary:  typical of A-type granites. Models proposed for the petrogenesis of the granitoids imply the existence... . © 1999 Elsevier Science B.V. All rights reserved. Keywords: A-type granites; Colorado; Geochemistry... granites. A-type granites have high ...

  

Source: Beane, Rachel J. - Department of Geology, Bowdoin College

 

Collection: Geosciences

 
38 Development of igneous layering during growth of pluton: The Tarouate Laccolith (Morocco)
 

Summary:  and crystallization progress in the emplacement of syntectonic granites. The A- type Estrela Granite Complex (Carajas... , as indicated by sub-vertical and synmagmatic granite, aplite and monzodiorite dykes cutting across the layering... examples of igneous layering in syenite and ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
39 Magmatic Evolution of the Skye Igneous Centre, Western Scotland: Modelling of
 

Summary:  Magmatic Evolution of the Skye Igneous Centre, Western Scotland: Modelling of Assimilation... NOVEMBER 4, 2004 The Skye igneous centre, forming part of the British Tertiary magmatic province, developed... and intrusive rocks of picritic to granitic composition. The intrusion of magma from mantle to crust at $2 Â 10À

  

Source: Spera, Frank J. - Department of Geological Sciences, University of California at Santa Barbara

 

Collection: Geosciences

 
40 Timing and duration of melting in the mid orogenic crust: Constraints from UPb (SHRIMP)
 

Summary:  characteristics typical of A-type granites, as de- fined by Eby (1990). One such A-type granite body yielded... , these data indicate either that there were two distinct episodes of A-type magmatism or that one... domain (a­e) and the Shawanaga domain (f­h). (a) ...

  

Source: Beaumont, Christopher - Department of Oceanography, Dalhousie University

 

Collection: Geosciences


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41 Colloque Transmet, 6-7 juillet 2006 GEOCHRONOLOGICAL CONSTRAINTS ON THE MAGMATIC AND
 

Summary:  Colloque Transmet, 6-7 juillet 2006 GEOCHRONOLOGICAL CONSTRAINTS ON THE MAGMATIC AND HYDROTHERMAL... and allochthonous units are intruded by syn- and post-kinematic plutons. Four generations of granites (G1 to G4... are spatially associated with the G3 granites whereas Sn-W deposits are represented, in the study area

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
42 Precambrian Research 186 (2011) 101116 Contents lists available at ScienceDirect
 

Summary:  Arabian-Nubian Shield (ANS). The early, island-arc magmatic cycle in this area is recorded by detrital... -collisional magmatic cycle marks the transition of the accreted arc complexes into a mature continental crust... physically and chemically, its Hf isotope composition is not likely to change as a result of post-magmatic

  

Source: Dov, Avigad - Institute of Earth Sciences, Hebrew University of Jerusalem

 

Collection: Geosciences

 
43 Int J Earth Sci (Geol Rundsch) (2003) 92:3653 DOI 10.1007/s00531-002-0305-8
 

Summary:  al. 1989; Köhler et al. 1989; Taubald 2000). Questions still pending are when granitic magmatism... of the Bärnau granite contains inherited cores mantled by magmatic rims with faint oscillatory zoning. Some... of late-Variscan magmatism. All gran- itoids analysed in this study were ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
44 McLelland, J.M., Selleck, B.W., and Bickford, M.E., 2010, Review of the Proterozoic evolution of the Grenville Province, its Adirondack outlier, and the Meso-proterozoic inliers of the Appalachians, in Tollo, R.P., Bartholomew, M.J., Hibbard, J.P., and Ka
 

Summary:  --Elzevirian. Symbols: Black dots--anorthosite-mangerite- charnockite-granite magmatism; white dots-- mangerite... -charnockite- granite magmatism; black--precollision calc-alkaline magmatism. Abbreviations: CGP--Grenville Province... implications. BFZ--Bahamas fracture zone; EGRP-- ...

  

Source: Selleck, Bruce - Department of Geology, Colgate University

 

Collection: Geosciences

 
45 Oxygen and sulfur isotope geochemistry revealing a significant crustal signature in the genesis of the post-collisional granitoids
 

Summary:  is seen in the CA granitoids. Trace element patterns of the I- and A-type granites look like post... (2005) but are summarized here. All the S-I-A-type granites are of a high-K composition, and the I... crustal contribution to the infracrustal hybrid magma source of I-type granites. The ...

  

Source: Arehart, Greg B. - Department of Geological Sciences, Mackay School of Mines, University of Nevada, Reno

 

Collection: Geosciences

 
46 Geochronology and geochemistry of high-pressure granulites of the Arthur River Complex, Fiordland, New Zealand: Cretaceous
 

Summary:  within WFO, Hauroko granite in MTZ, M1 low-P metm Black Giants Anorthosite High-P M2 metm MTZ magmatism... MTZ magmatism WFO-SPS magmatism Cooling of WFO & ARC French Creek granite, Hohonu dike swarm SPS... magmatism, Rahu Suite MTZ magmatism ...

  

Source: Daczko, Nathan - Department of Earth and Planetary Sciences, Macquarie University

 

Collection: Geosciences

 
47 Geochronology of the Sikombe Granite, Transkei, Natal Metamorphic Province, South Africa
 

Summary:  Geochronology of the Sikombe Granite, Transkei, Natal Metamorphic Province, South Africa Robert J... of the syntectonic, gneissose Sikombe Granite from northeastern Transkei (Eastern Cape Province). The outcrops form... of three samples of the Sikombe Granite give consistent, positive Nd values (+4 at t = 1180 Ma) showing

  

Source: Patterson, William P. - Department of Geological Sciences, University of Saskatchewan

 

Collection: Geosciences

 
48 ORIGINAL PAPER Assimilation and diffusion during xenolith-magma
 

Summary:  observations with petrological and geochemical studies of magmatic enclaves and their host granite. Magmatic... at the boundary between the enclave and granite host is armoured by mafic minerals; b Elongated mafic magmatic... of the Variscan Karkonosze Granite, ...

  

Source: Podladchikov, Yuri - Centre for Physics of Geological Processes, Universitetet i Oslo

 

Collection: Geosciences

 
49 Re-Os age for molybdenite from SW Sardinia (Italy): A comparison with Ar dating of Variscan granitoids
 

Summary:  - ered by Guasparri et al. (1984a) as transitional to A- type granitic suites. This kind of magmatism... the younger A-type generation (289 Ma), associated with the last stages of collapse of the Variscan chain... by granite intrusions and late-Variscan basement ...

  

Source: Boni, Maria - Dipartimento di Scienze della Terra, Università degli Studi di Napoli "Federico II"

 

Collection: Geosciences

 
50 Rocky Mountain Geology, v. 33, no. 2, p. 161-179, 7 figs., October, 1998 161 Persistent influence of Proterozoic accretionary boundaries
 

Summary:  a progressive build-up of radiogenic heat in the crust following accretion. These granitoids have been termed "A-type... ­west extension, temporally coincident with 1116­1070-Ma granitic magmatism (Walker, 1992), but near the end... tectonism and magmatism. After 200 m.y. of stability, cratonic lithosphere ...

  

Source: Humphreys, Eugene - Department of Geological Sciences, University of Oregon

 

Collection: Geosciences

 
51 A slab breako model for the Neogene thermal evolution of South Karakorum and South Tibet
 

Summary:  mantle. The Nd and Sr isotopic compositions of the South Karakorum Neogene magmatic rocks (ONd = 312... magmatic rocks ( 6 10 Myr), here exemplified by the Hemasil syenite and associated lamprophyres, requires... contaminated by oceanic sediments, likely during the earlier subduction of the Tethyan ocean. Neogene magmatic

  

Source: Pecher, Arnaud.- Institut des Sciences de la Terre, Université Joseph Fourier

 

Collection: Geosciences

 
52 ORIGINAL PAPER Textural evidence of magma decompression, devolatilization
 

Summary:  and phosphorus concentrations. Keywords Granite Á Crystallization Á Thermodynamic modeling Á Magmatic textures Á... quenching: an example from the Western Krusne´ hory/Erzgebirge granite pluton Miroslav Stemprok Æ David... online: 24 July 2007 Ó Springer-Verlag 2007 Abstract We report new occurrences of ``two-phase'' ...

  

Source: Dolejš, David - Bayerisches Geoinstitut, Universität Bayreuth

 

Collection: Geosciences

 
53 Emplacement in an extensional setting of the Mont LozreBorne granitic complex (SE France) inferred from
 

Summary:  ( Faure et al., 1997). A new shortening event accompanied by granitic magmatism occurred during Late... and the magmatic fabrics. The most negative gravity anomaly is located in the western part of the granitic complex... Emplacement in an extensional setting of the Mont Lozère­Borne ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
54 Age and emplacement of late-Variscan granites of the western Bohemian Massif with main focus on the Hauzenberg granitoids
 

Summary:  Hauzenberg granite II represents the main magmatic activity. Detailed mapping by Dollinger (1961) revealed... II granite. Fig. 3d and f show grains which are related to one-episodic magmatism, whereas those... II=Hauzenberg granite II/Kirchstein; prefix Tax = granite ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
55 Precambrian Research 118 (2002) 5982 A late Neoproterozoic magmatic core complex in the
 

Summary:  ., 1988). The intrusion of granites in the Central Eastern Desert peaked in two major phases of magmatic... contents the rocks cover the field of alkali-granite. The presence of magmatic fluorite suggests... chemistry of group (II) and group (III) which show A-type affinity. Data for ...

  

Source: Fritz, Harald - Institut fuer Erdwissenschaften, Karl-Franzens-Universität Graz

 

Collection: Geosciences

 
56 For permission to copy, contact editing@geosociety.org 2006 Geological Society of America
 

Summary:  of the Shawinigan orogeny and subsequent anorthosite-mangerite-charnockite-granite magmatism Matthew J. Heumann M... of the ca. 1.09­1.03 Ga A-type Hawkeye gran- ites across the region; followed by the onset... the left margin, and orogenic and magmatic names, along the right margin. ...

  

Source: Selleck, Bruce - Department of Geology, Colgate University

 

Collection: Geosciences

 
57 Los Angeles Palm Springs
 

Summary:  /Granodiorite Granite Granodiorite Mid-Crustal Sheeted Complex Upper Crust Crustal Scale Model - Magmatic Evolution... framework rocks Permo-Triassic granitic rocks LEGEND Cretaceous - Paleocene schist infrastructure Jurassic... volcanic rocks Paleozoic and Mesozoic framework rocks Jurassic granitic rocks ...

  

Source: Nur, Amos - Department of Geophysics, Stanford University

 

Collection: Geosciences

 
58 Melt Inclusions Come of Age 1 Melt Inclusions Come of Age
 

Summary:  . Günther and C.A. Heinrich, 2000, Magmatic-hydrothermal evolution in a fractionating granite... , M.-L., 1992, Magmatic immiscibility and fluid phase evolution in the Mount Genis granite... accept their utility for characterizing magmatic systems. Their relatively slow acceptance was ...

  

Source: Lowenstern, Jacob B.- Volcano Hazards Team, U.S. Geological Survey

 

Collection: Geosciences

 
59 Occurrence and Origin of Andalusite in Peraluminous Felsic Igneous Rocks
 

Summary:  cross the granite solidus rather than lie below it. Magmatic andalusite, however formed, is susceptible... of its former existence. KEY WORDS: andalusite; granite; magmatic; origin; xenocrystic 2 JOURNAL... of primary magmatic andalusite, whereas the combination of the haplo- ...

  

Source: Pattison, David R. M. - Department of Geology and Geophysics, University of Calgary

 

Collection: Geosciences

 
60 ORIGINAL PAPER Origin of a late Neoproterozoic (605 13 Ma) intrusive
 

Summary:  in an extensional or non-compressive tectonic regime in the cupola of high-level A-type granite. Tarr albitites may... represent residual magma remaining after near-total crys- tallization of an A-type granite pluton at depth... differentiated albitite melt, in the apical regions of a still-buried alkaline ...

  

Source: Stern, Robert J. - Department of Geosciences, University of Texas at Dallas

 

Collection: Geosciences


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61 PERI-GONDWANAN ELEMENTS IN THE CALEDONIAN NAPPES OF FINNMARK, NORTHERN NORWAY: IMPLICATIONS FOR THE
 

Summary:  tectonism and granitic magmatism prior to the emplacement of the gabbroic / alkalic complex at 570 to 560 Ma... events of anatexis and granitic magmatism, at least in part linked to deformation, at about 700... age of 602 5 Ma, interpreted as dating the magmatic intrusion of the ...

  

Source: Torsvik, Trond Helge - Sentrum for Geodynamikk, Norges Geologiske Undersøkelse

 

Collection: Geosciences

 
62 Rubrique : Tectonique Modlisation gomtrique 3D des granites Stphaniens du massif du Pelvoux (Alpes, France).
 

Summary:  magmatic contacts between the granites and their host rocks occur first during the Liassic extension event... : Visean granites, 2 : Stephanian granites, 3 : Mesozoic sedimentary cover, 4 : magmatic and amphibolite... 1 Rubrique : Tectonique Modélisation géométrique 3D des ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
63 Preserved magnetic fabrics vs. annealed microstructures in the syntectonic recrystallised George granite, South Africa
 

Summary:  ). The Cape Granite Suite includes syn- to post-tectonic S-type, late-tectonic I-type and post-tectonic A-type... by successive magmatic pulses. The granites, studied by the Anisotropy of Magnetic Susceptibility (AMS... granite, South Africa E.C. Ferre a , L. Ame glioa,b a Department ...

  

Source: Ferré, Eric - Department of Geology, Southern Illinois University

 

Collection: Geosciences

 
64 Granitoid emplacement during a thrusting event: structural analysis, microstructure and quartz c-axis
 

Summary:  .g. Gapais, 1989 and Pons et al., 1992). Due to the abundance of granite magmatism, the Hercynian orogeny... to L2 stretching lineation, they are probably a-type folds formed during the top-to-the-NW D2 shearing... in polyphase deformed terranes. Author Keywords: Author Keywords: Quartz c axis fabrics; ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
65 UPb ages of plutonic and metaplutonic rocks in southern Borborema Province (NE Brazil): Timing of Brasiliano
 

Summary:  Filho, A.F., 2002. A-type post- collisional granites in the Borborema province - NE Brazil... bipyramidal terminations typical of a magmatic growth (Fig. 4). The sample of the Cabanas granite was deformed... ) granite magmatism in the Pajeu´-Parai´ba belt, Northeast ...

  

Source: Demouchy, Sylvie - Department of Geosciences, Université Montpellier II

 

Collection: Materials Science

 
66 Ar age constraints on the Late Palaeozoic tectonic evolution of the western Tianshan (Xinjiang, northwestern
 

Summary:  . The Permian alkaline and peralkaline granites are petrogenetically of the A-type (Coleman 1989) that is formed... -plate and during the waning stages of subduction-zone-related magmatism (Eby 1990). Anorogenic A-type felsic... of the A-type granites indicate their ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
67 JOURNAL OF PETROLOGY VOLUME 38 NUMBER 12 PAGES 17071721 1997 Comagmatic A-Type Granophyre and
 

Summary:  ; rhyolite; melt inclusions Lipman et al., 1997). They are often found in A-type granites, such as those... have shown that MI provide a record of thein A-type granites (Abdel-Rahman, 1994). melt composition... and CO2 concentrationsMI (Table 2). Many researchers have noted high CO2 in ...

  

Source: Lowenstern, Jacob B.- Volcano Hazards Team, U.S. Geological Survey

 

Collection: Geosciences

 
68 Abstract, Institute of Lake Superior Geology, 2011 Mtg. Neoarchean magmatism in the NW Superior Craton
 

Summary:  magmatism, at 2730 Ma, was more evolved with granodioritic to granitic composition. This stage of magmatic... activity took place at shallower, mid- to uppercrustal depths. The most recent magmatic activity (granitic... Abstract, Institute of Lake Superior Geology, 2011 Mtg. Neoarchean ...

  

Source: 

 

Collection: Geosciences

 
69 Precambrian Research 114 (2002) 199219 Obliquely convergent tectonics and granite emplacement in
 

Summary:  melting. The Trans-Saharan Belt in Nigeria is a good laboratory to study granite magmatism and orogeny... intrusion in the granite pluton is shown by the discordance of its magmatic structures and by a magmatic... emplacement before full-crystallization. Granites in ...

  

Source: Ferré, Eric - Department of Geology, Southern Illinois University

 

Collection: Geosciences

 
70 Neoproterozoic crustal evolution in Southern Chad: Pan-African ocean basin closing, arc accretion and late-to
 

Summary:  . It is invaded by a late granite intrusion at its eastern side. In this latter area, typical magmatic stoping... magmatic muscovite. In all the other granites, muscovite is either secondary and resulting from feldspar... and the G3b granites for the Lampto tonalite (Fig. 9B). This ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
71 Phase equilibrium constraints on the viscosity of silicic magmas with implications for mafic-silicic
 

Summary:  -solid behavior. Thus they cannot be used as fossil indicators of direction of magmatic flow. key words: granite... stages of magmatic evolution (i.e. at near liquidus conditions) but only in magmas of dacitic or more... by the host pluton. Mafic enclaves carried by granitic magmas behave as passive markers ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
72 Comptes rendus de l'Academie bulgare des Sciences Tome 63, No 8, 2010
 

Summary:  and voluminous Variscan granitoid magmatism in the studied area. On the basis of the intensity and character... of the solid-state overprint these magmatic rocks are subdivided into three categories: syn-kinematic (Karlovo... and Rozino/Klisura granites). Also, the existence of migmatitic basement typical for Stara Planina

  

Source: Schmid, Stefan M. - Institut für Geologie und Paläontologie, Departement Umweltwissenschaften, Universität Basel

 

Collection: Geosciences

 
73 Short-lived magmatic activity in an anorogenic subvolcanic complex: 40
 

Summary:  ¤^Etendeka; anorogenic granite; £ood basalt; silicic magmatism 0377-0273 / 03 / $ ^ see front matter ß 2003 Elsevier B... rhyodacite^Ombu granodiorite and Ekuta rhyolite^Erongo granite (Fig. 7b). 5.2. Timing of silicic magmatism... Short-lived magmatic activity in an anorogenic ...

  

Source: UCLA, Ion Microprobe Facility

 

Collection: Geosciences

 
74 ARTICLE IN PRESS Short-lived magmatic activity in an anorogenic subvolcanic
 

Summary:  ¤^Etendeka; anorogenic granite; £ood basalt; silicic magmatism 0377-0273 / 03 / $ ^ see front matter ß 2003 Published... ARTICLE IN PRESS Short-lived magmatic activity in an anorogenic subvolcanic complex: 40 Ar/39 Ar... granite. These units yielded U^Pb zircon ages of 131.9 þ 2.9 and 130.3 þ 1.4 Ma, ...

  

Source: UCLA, Ion Microprobe Facility

 

Collection: Geosciences

 
75 Jacob B. Lowenstern Carbon dioxide in magmas and implications
 

Summary:  %) concentrations in an A-type rhyolite from the Afar rift of Eritrea. They concluded that the low concentrations... the Harney Peak Granite (Black Hills, South Dakota) to be primary magmatic vapors trapped at 3.5 kbar... that the presence of CO2 can induce immiscibility both within the magmatic volatile ...

  

Source: Lowenstern, Jacob B.- Volcano Hazards Team, U.S. Geological Survey

 

Collection: Geosciences

 
76 JOBNAME: PGA (Alden DTD v2.03 PAGE: 1 SESS: 5 OUTPUT: Fri Oct 13 09:18:43 2006 /hling/journals/geo/100/06006
 

Summary:  they form boudins and xenoliths in diatexite (a type of migmatite where darker and lighter parts are mingled... conformably within anatexites and S-type garnet-bearing anatectic granites from the Toro area. Temperatures... anorogenic magmatism. Key words: Nigeria, Neoproterozoic, granulite, charnockite 1 ...

  

Source: Ferré, Eric - Department of Geology, Southern Illinois University

 

Collection: Geosciences

 
77 [The Journal of Geology, 2002, volume 110, p. 649669] 2002 by The University of Chicago. All rights reserved. 0022-1376/2002/11006-0002$15.00 Ireteba Pluton, Eldorado Mountains, Nevada: Late, Deep-Source,
 

Summary:  the last stage of magmatism at this latitude. A few other peraluminous granites in the Colo- rado River... , Deep-Source, Peraluminous Magmatism in the Cordilleran Interior Jessica D'Andrea Kapp,1 Calvin F... , U.S.A. (e-mail: jessica@oro.ess.ucla.edu) A B S T R A C T The Ireteba pluton is a 66 Ma granite

  

Source: UCLA, Ion Microprobe Facility

 

Collection: Geosciences

 
78 N. Jb. Miner. Abh. Fast Track DOI: 10.1127/0077-7757/2006/0058 Fast Track Article by E. Schweizerbart'sche Verlagsbuchhandlung 2006
 

Summary:  , Propach 1977, 1989). Minor magmatic rocks in the region comprise granodiorites, two-mica granites... et al. 2005). Given this synchroneity and the voluminous but short flare-up of granitic magmatism... . Schweizerbart'sche Verlagsbuchhandlung 2006 Coeval late-Variscan emplacement of ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
79 The significance of microgranitoid enclave shapes and orientations Scott R. Patersona,*, Geoffrey S. Pignottaa
 

Summary:  magmatic mineral fabrics in enclaves, and magmatic mineral fabrics in the host granite. Although... magmatic strains in plutons. We emphasize that microgranitoid enclaves are not like other ellipsoidal... , may provide qualitative data on the changing magnitude and kinematics of magmatic ...

  

Source: Lee, Cin-Ty Aeolus - Department of Earth Science, Rice University

 

Collection: Geosciences

 
80 Precambrian Research 104 (2104) 187206 2.83.0 Ga plutonism and deformation in the SE
 

Summary:  , 2560937 Ma; zircon Pb­Pb data; Souza et al., 1996a) and A-type granitoids as the Estrela granite complex... to distinct erosion levels. 3. Sheeted alkaline granites (2.75 Ga) and A-type granites (2.57 Ga) seem... : an example of an Archaean A-type granitoid. J. ...

  

Source: Boullier, Anne-Marie - Laboratoire de Géophysique Interne et Tectonophysique, Observatoire de Grenoble, Université Joseph Fourier

 

Collection: Geosciences


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81 Geological Society of America Magmatic-hydrothermal leaching and origin of late to post-tectonic
 

Summary:  involved in the Lyon Mountain granite hydrothermal systems may include both magmatic and surface... within the granite by deposition from high-temper- ature hydrothermal fluids of probable magmatic origin... in Lyon Mountain granite magmatic history. These earlier ...

  

Source: Selleck, Bruce - Department of Geology, Colgate University

 

Collection: Geosciences

 
82 Granite intrusion in a metamorphic core complex: The example of the Mykonos laccolith (Cyclades, Greece)
 

Summary:  with long axis parallel to the stretching lineation (a-type dome). We concur with (Avigad et al., 2001... Granite intrusion in a metamorphic core complex: The example of the Mykonos laccolith (Cyclades... of metamorphic core complex (MCC) and to investigate the role of syn-tectonic granites on their development

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
83 Two Distinctive Granite Suites in the SW Bohemian Massif and their Record of
 

Summary:  . Fig. 2. Granite types and magmatic fabrics in the Bavarian Forest SW of the Pfahl Zone (Bavarian... constraints on granite crystallization. A summary of the data for magmatic zircons is given inTable 2... the Lalling, Sattelpeinstein and Miltach granites form elongated idio- 65morphic ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
84 REFERENCES Affaton, P., Rahaman, M.A., Trompette, R. and Sougy, J.,
 

Summary:  . The Pombal granite pluton: magnetic fabric, emplacement and relationships with the Brasiliano strike- slip... of the magnetite-bearing granite pluton of Gameleiras (Northeast Brazil). Phys. Earth and Planet. Inter., 89 : 63... of granites: the example of the Foix pluton (French Pyrenees). Tectonophysics, 184 : 157- 171. ...

  

Source: Ferré, Eric - Department of Geology, Southern Illinois University

 

Collection: Geosciences

 
85 Crustal evolution and recycling in the northern1 Arabian-Nubian Shield: new perspectives from zircon2
 

Summary:  ;13 (1990). The final magmatic episode of the older igneous cycle is the emplacement of the Elat291 granitic... Arabian-Nubian Shield (ANS). The early,14 island-arc magmatic cycle in this area is recorded by detrital... , post-collisional magmatic cycle marks the transition of the accreted arc27 complexes into ...

  

Source: Dov, Avigad - Institute of Earth Sciences, Hebrew University of Jerusalem

 

Collection: Geosciences

 
86 The paradoxical aspect of the Himalayan granites Jean-Louis VIGNERESSE1
 

Summary:  collision-related granites. Additional comparison with magmatic arcs and cordilleran-type batholiths... bodies and the magmatic production rates. We term batholith huge granitic bodies composed of smaller... field and from Himalayan granites by Vigneresse & Burg 7 ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
87 Journal of the Geological Society, London, Vol. 163, 2006, pp. 291301. Printed in Great Britain. Early Silurian maficultramafic and granitic plutonism in contemporaneous flysch,
 

Summary:  . 291 Early Silurian mafic­ultramafic and granitic plutonism in contemporaneous flysch, Magerøy... and regional metamorphism and were intruded by a mafic­ultramafic complex and various granitic plutons. U... granite and 437.7 Æ 1.6 Ma for the Finnvik granite coincide within error with the age of ...

  

Source: Andersen, Torgeir Bjørge - Centre for Physics of Geological Processes & Department of Geosciences, Universitetet i Oslo

 

Collection: Geosciences

 
88 Tectonophysics, 214 (1992) 27-36 Elsevier Science Publishers B.V., Amsterdam
 

Summary:  of undeformed A-type granites as- sociated with further mafic magmas, with intru- sion ages of 490-480 Ma... , Rotterdam, pp. 431-435. Turner, S.P., Foden, J.D. and Morrison, R., 1992. Derivation of A-type magma... : that is, at the same time as the formation of the Cambrian magmatic "arcs" and the initial ...

  

Source: Sandiford, Mike - School of Earth Sciences, University of Melbourne

 

Collection: Geosciences

 
89 2005 Geological Society of America. For permission to copy, contact Copyright Permissions, GSA, or editing@geosociety.org. Geology; December 2005; v. 33; no. 12; p. 961964; doi: 10.1130/G21832.1; 4 figures. 961
 

Summary:  lithospheric necking to explain early granitic magmatism in the lower plate of the southern Appalachian system... ?) slab break-off magmatic events may have occurred. It is notable that the Katahdin Granite and other... figures. 961 Foreland-forearc collisional granitoid and mafic ...

  

Source: Kidd, William S. F. - Department of Earth and Atmospheric Sciences, State University of New York at Albany

 

Collection: Geosciences

 
90 The Saharan Metacraton Mohamed G. Abdelsalam a,*, Jean-Paul Lieegeois b
 

Summary:  , and 5­­Wadi Mubarak granitic conglomeratic cobble; 6­­Sabaloka granulite; 7 and 8­­Wadi Miyah greywacke... ; 9, 10 and 11­­Wadi Allaqi greywacke; 12­­Aswan granite; 13­­Wadi Allaqi dike; 14, 15, 16, and 17... ­­Duweishat gneiss; 18­­Duweishat granitic conglomeratic cobble; 19 and 20­­Jebel Kamil anorthosite; 21 ...

  

Source: Stern, Robert J. - Department of Geosciences, University of Texas at Dallas

 

Collection: Geosciences

 
91 The Malashan gneiss dome in south Tibet: comparative study with the Kangmar dome with special reference to
 

Summary:  magmatic flow. Regardless of this interpret- ation, the central part of the Malashan granite is clearly... reference to kinematics of deformation and origin of associated granites M. AOYA1 , S. R. WALLIS2 , T... located two-mica granite; (ii) the presence of two dominant ductile defor- mation stages, D1 and ...

  

Source: Lee, Jeff - Department of Geological Sciences, Central Washington University

 

Collection: Geosciences

 
92 TEXTURE AND COMPOSITION OF GARNET AS A GUIDE TO CONTAMINATION OF GRANITOID PLUTONS: AN EXAMPLE FROM THE GOVERNOR LAKE AREA,
 

Summary:  -poor garnet in granitic and tonalitic samples (type 4). FIGURE 6. A) Type-2 garnets in country rock metapelite... for the granulite-granite connection: Penecontemporaneous high-grade metamorphism, granitic magmatism and core... of type 1 garnets (Fig. 3). FIGURE 7. ...

  

Source: Beaumont, Christopher - Department of Oceanography, Dalhousie University

 

Collection: Geosciences

 
93 Long-term thermal consequences of the redistribution of heat-producing elements associated with large-scale
 

Summary:  here and in Fig. 1 highlight the potential role played by granitic magmatism in controlling the long... of granitic magmatism in stabilising continental lithosphere. Because the mechanical strength of litho- sphere... of HPEs into the upper crust through large-scale granite ...

  

Source: Sandiford, Mike - School of Earth Sciences, University of Melbourne

 

Collection: Geosciences

 
94 Geochemical and isotopic constraints on the petrogenesis of granitoids from the Dalat zone, southern Vietnam
 

Summary:  for the Cana granites have experienced extensive magmatic differentiation (Whalen et al., 1987). Some samples... -type granites. The Dinhquan suite consists of hornblende-biotite granodiorites, diorites, and minor granites... -bearing granites poor in hornblende. The rocks are 96­93 My ...

  

Source: Siebel, Wolfgang - Institut für Geowissenschaften, Universität Tübingen

 

Collection: Geosciences

 
95 PII S00167037(99)00407-X Chlorine isotopes in fluid inclusions: Determination of the origins of salinity
 

Summary:  , 1817­1835. Darbyshire D. P. F. and Shepherd T. J. (1985) Chronology of granite magmatism and associated... of salinity in magmatic fluids D. A. BANKS,* R. GREEN, R. A. CLIFF, and B. W. D. YARDLEY School of Earth... to be measured with greater certainty. The method has been applied to determine 37 Cl of two sets of ...

  

Source: Earth Sciences, University of Leeds

 

Collection: Geosciences

 
96 INTRODUCTION Extraction of granite from lower crust, and its
 

Summary:  of peak metamorphism and crystallization ages of granite shows tectonics, meta- morphism, and magmatism... . Granite ex- hibits magmatic foliation but does not record solid-state fabrics. This suggests late... INTRODUCTION Extraction of granite from lower crust, and its emplacement at ...

  

Source: Solar, Gary S. - Department of Earth Sciences and Science Education, Buffalo State College

 

Collection: Geosciences

 
97 Abstract Schlieren that form above the solidus are potentially diagnostic of the rheology of crystallizing
 

Summary:  ) of these schlieren are associated with magmatic porphyry and granitic enclaves (from less than 1 to more than 4 m... of crystallizing granitic magmas and could provide insights into mag- ma chamber structure. Here we focus on steep... schlie- ren associated with comagmatic enclaves in the Vinalhaven ...

  

Source: Jellinek, Mark - Department of Earth and Ocean Sciences, University of British Columbia

 

Collection: Geosciences

 
98 Four-stage building of the Cambrian Carion pluton (Madagascar) M.O. M. RAZANATSEHENO1
 

Summary:  zoning from tonalitic to granitic compositions can be recognized in the field. Steep magmatic foliations... -feldspar megacrysts ; they have a granitic composition. A pink leucogranite sometimes forms magmatic dykes or larger... are evidenced by K-feldspar megacryst preferred orientations. Microstructures are ...

  

Source: Florida, University of - College of Engineering. Software and Analysis of Advanced Materials Processing Center

 

Collection: Computer Technologies and Information Sciences ; Materials Science

 
99 Building an island-arc crustal section: Time constraints from a LA-ICP-MS zircon study
 

Summary:  . The main difference with the model of Dhuime et al. (2009) is that A-type magmas are not restricted... -island arc (Northern Pakistan). Inheritance in magmatic rocks is evidence for recycling of intra-arc material... their way upward into the arc crust. The oldest magmatic ages measured in this study fall in the range 101

  

Source: Demouchy, Sylvie - Department of Geosciences, Université Montpellier II

 

Collection: Materials Science

 
100 Pull-apart emplacement of the Margeride granitic complex (French Massif Central). Implications for the late
 

Summary:  ). This granitic magmatism occurred mainly during the last stages of the compressional event or during the late... of the porphyritic granite. (a) and (b) Magmatic microstructures showing quartz grains without undulose extinction... ). The magmatic microstructures are observed mostly in ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics


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