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  • 1 Geological Institute of Hungary, Budapest H-1143 Budapest, Stefánia út 14, Hungary
  • | 2 Research Group for Geophysics and Environmental Physics of the Hungarian Academy of Sciences, Dept. of Geophysics, Eötvös University, Budapest H-1117 Budapest, Pázmány P. sétány 1/c, Hungary
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This paper is devoted to the description of spessartine-almandine garnet (Sps: 39.8-60.2%; Alm: 29.1-56.76%; Grs <7%, Prp <3.6%, Adr <5%) from aplitic dyke rocks of the Mórágy granitoid near Erdõsmecske and Aranyos valley. The aplitic dyke rocks contain K-feldspar, plagioclase, quartz, (myrmekite), ±garnet, ±biotite, chlorite or secondary muscovite, ±ore minerals, ±calcite, ±apatite and ±epidote. Two different zoning types in garnet were detected by electron microprobe. Zoning type I means either Mn enrichment at the expense of Fe towards the rim or towards the core or plateau garnet profiles. Zoning type II displays Ca enrichment at the rim of garnet. A high proportion of Sps component in garnet and the character of zoning type I are considered as typical magmatic features.  The pressure-temperature estimation for aplite formation arises from experimental investigations of Green (1977) in agreement with the hypothetical approach of liquidus relationships by Abott and Clarke (1979) giving a minimum temperature estimation of c. 675 °C-700 °C at pressure of 1-3 kbar. Following the magmatic crystallization, solid state deformation is evidenced by dynamic recrystallization of quartz and feldspars at temperatures of about 450-500 °C in the upper greenschist to lower amphibolite facies. Grossular-rich rim of garnet indicates pressure increase during ductile deformation.

  • Király, E. 1996: New results on the research of polymetamorphic basement of South-East Transdanubia. - Földt. Közl., 125, pp. 1-23.

    'New results on the research of polymetamorphic basement of South-East Transdanubia. ' () 125 Földt. Közl. : 1 -23.

    • Search Google Scholar
  • Szabó, Cs. 1998: Karbonátos repedéskitöltés vizsgálatok Üveghuta környékáen mélyített fúrások gránitoid kőzetein. - ELTE TTK, Kőzettani és Geokémiai Tanszék, p. 69. (Kapcsolódó projekt: Kis és közepes rádioaktivitású erőmũvi hulladékok végleges elhelyezése. Telephelykutatás Üveghuta körzetében) (Carbonate fissure filling examinations on the granitoid rocks from boreholes in the environs of Üveghuta [Supplementary project: Final disposal of power station waste of small and medium radioactivity. Site exploration in the area of Üveghuta]). -Manuscript. Hungarian Geological Institute of Hungary (in Hungarian).

    Karbonátos repedéskitöltés vizsgálatok Üveghuta környékáen mélyített fúrások gránitoid kőzetein. - ELTE TTK, Kőzettani és Geokémiai Tanszék, p. 69. (Kapcsolódó projekt: Kis és közepes rádioaktivitású erőmũvi hulladékok végleges elhelyezése. Telephelykutatás Üveghuta körzetében) (Carbonate fissure filling examinations on the granitoid rocks from boreholes in the environs of Üveghuta [Supplementary project: Final disposal of power station waste of small and medium radioactivity. Site exploration in the area of Üveghuta]). -Manuscript. , ().

    • Search Google Scholar
  • Szabó, Cs. 1999 Karbonátos repedéskitöltés vizsgálatok Üveghuta környéken mélyített fúrások gránitoid kőzetein. ELTE TTK, Kőzettani és Geokémiai Tanszék. pp: 100. (Kapcsolódó projekt: Kis és közepes rádioaktivitású erőmũvi hulladékok végleges elhelyezése. Telephelykutatás Üveghuta körzetében) (Carbonate fissure filling examinations on the granitoid rocks from boreholes in the environs of Üveghuta [Supplementary project: Final disposal of power station waste of small and medium radioactivity. Site exploration in the area of Üveghuta]). -Manuscript, Geological Institute of Hungary (in Hungarian).

    Karbonátos repedéskitöltés vizsgálatok Üveghuta környéken mélyített fúrások gránitoid kőzetein. ELTE TTK, Kőzettani és Geokémiai Tanszék. pp: 100. (Kapcsolódó projekt: Kis és közepes rádioaktivitású erőmũvi hulladékok végleges elhelyezése. Telephelykutatás Üveghuta körzetében) (Carbonate fissure filling examinations on the granitoid rocks from boreholes in the environs of Üveghuta [Supplementary project: Final disposal of power station waste of small and medium radioactivity. Site exploration in the area of Üveghuta]). , ().

    • Search Google Scholar
  • Szederkényi, T. 1975: Rare element research of the Early Paleozoic formations in SW-Transdanubia. -C.Sc. Thesis, Budapest, p. 183 (in Hungarian).

  • Török, K. 1990: New data on the geothermometry and geobarometry of the Somogy-Dráva basin, SW Transdanubia, Hungary. - Acta Miner-Petrogr., Szeged, 31, pp. 13-23.

    'New data on the geothermometry and geobarometry of the Somogy-Dráva basin, SW Transdanubia, Hungary. ' () 31 Acta Miner-Petrogr., Szeged : 13 -23.

    • Search Google Scholar
  • Tullis, J., R.A. Yund 1991: diffusion creep in feldspar aggregates: experimental evidence. - J. Struct. Geol., 13, pp. 987-1000.

    'diffusion creep in feldspar aggregates: experimental evidence. ' () 13 J. Struct. Geol. : 987 -1000.

    • Search Google Scholar
  • Tüske, T. 2001: A Mórágyi-rög metamorfitjainak szerkezeti értékelése. (Strukturgeologische Bestimmung der metamorphischen Gesteine von Mórágy-Masse.) - M.Sc. thesis, Eötvös University, Budapest, p. 85. (In Hungarian.)

  • Whitworth, M.P., M. Feely 1994: The compositional range of magmatic Mn-garnets in the Galway Granite, Connemara, Ireland. - Mineralogical Magazine, 58, pp. 163-168.

    'The compositional range of magmatic Mn-garnets in the Galway Granite, Connemara, Ireland. ' () 58 Mineralogical Magazine : 163 -168.

    • Search Google Scholar
  • Winkler, H.G.F. 1976: Petrogenesis of Metamorphic Rocks. - Springer-Verlag, New York, p. 164.

    Petrogenesis of Metamorphic Rocks. , () 164..

  • Picher, W.S. 1983: Granite: Typology, Geological Environment and Melting Relationships. - In Atherton, M.P., C.D. Gribble (Eds): 1983: Migmatites, melting and metamorphism, pp. 277-285.

    Granite: Typology, Geological Environment and Melting Relationships. , () 277 -285.

  • Pryer, L.L. 1993: Microstructures in feldspars from a major crustal thrust zone: the Grenville Front, Ontario, Canada. - J. of Struct. Geol., 15/1, pp. 21-36.

    'Microstructures in feldspars from a major crustal thrust zone: the Grenville Front, Ontario, Canada. ' () 15/1 J. of Struct. Geol. : 21 -36.

    • Search Google Scholar
  • Simpson, C., R.E Wintsch 1989: Evidence for deformation-induced K-feldspar replacement by myrmekite. - J. Metam. Geol., 7, pp. 261-275.

    'Evidence for deformation-induced K-feldspar replacement by myrmekite. ' () 7 J. Metam. Geol. : 261 -275.

    • Search Google Scholar
  • Spry, A. 1969: Metamorphic textures. - Pergamon Press, Oxford, p. 346.

    Metamorphic textures. , () 346..

  • Yardley, B.WD. 1977: An empirical study of diffusion in garnet. - Amer. Mineral, 62, pp. 793-800.

    'An empirical study of diffusion in garnet. ' () 62 Amer. Mineral : 793 -800.

  • Bowen, N.L. 1937: Recent high-temperature research on silicates and its significance in igneous geology. - Amer. J. Sci., 233, pp. 1-21.

    'Recent high-temperature research on silicates and its significance in igneous geology. ' () 233 Amer. J. Sci. : 1 -21.

    • Search Google Scholar
  • Buda, Gy. 1985: Origin of collision-type Variscan granitoids as exemplified by the granitoids of hungary, the Western Carpathians and the central bohemian Massif. - C.Sc. Thesis, Budapest, p. 148.

  • Bucher, K., M. Frey 1994: Petrogenesis of Metamorphic rocks. - Springer, Berlin p. 347.

    Petrogenesis of Metamorphic rocks. , () 347..

  • Abott, R.N., JR., D.B. Clarke 1979: Hypothetical liquidus relationships in the subsystem Al2O3-FeO-MgO projected from quartz, alkali feldspar and plagioclase for a (H2O) = 1. - Canadian Mineralogist, 17, pp. 549-560.

    'Hypothetical liquidus relationships in the subsystem Al2O3-FeO-MgO projected from quartz, alkali feldspar and plagioclase for a (H2O) = 1. ' () 17 Canadian Mineralogist : 549 -560.

    • Search Google Scholar
  • Árkai, P. 1984: Polymetamorphism of the crystalline basement of the Somogy-Dráva Basin (Southwestern Transdanubia, Hungary). - Acta Miner. Petr. Szeged., 6, pp. 129-153.

    'Polymetamorphism of the crystalline basement of the Somogy-Dráva Basin (Southwestern Transdanubia, Hungary). ' () 6 Acta Miner. Petr. Szeged. : 129 -153.

    • Search Google Scholar
  • Árkai, P., G. Nagy 1994: Tectonic and magmatic effects on amphibole chemistry in mylonitized amphibolites and amphibole-bearing enclaves associated with granitoid rocks, Mecsek Mountains, Hungary. - Acta Geol. Hung., 37, pp. 235-268.

    'Tectonic and magmatic effects on amphibole chemistry in mylonitized amphibolites and amphibole-bearing enclaves associated with granitoid rocks, Mecsek Mountains, Hungary. ' () 37 Acta Geol. Hung. : 235 -268.

    • Search Google Scholar
  • Árkai, P., P. Horváth, G. Nagy 1999: A clockwise P-T path from the Variscan basement of the Tisza Unit, Pannonian basin, Hungary. - Geol. Croat., 52/2, pp. 109-117.

    'A clockwise P-T path from the Variscan basement of the Tisza Unit, Pannonian basin, Hungary. ' () 52/2 Geol. Croat. : 109 -117.

    • Search Google Scholar
  • Atherton, M.P 1968: Origin of granite batholithsÉ geochemical evidence. - Contrib. Mineral. Petrol., 18, pp. 347-371.

    'Origin of granite batholithsÉ geochemical evidence. ' () 18 Contrib. Mineral. Petrol. : 347 -371.

    • Search Google Scholar
  • Deer, W.A., R.A. Howie, J. Zussman 1963: Rock forming minerals. - Second edition. Longman Scientific and Technical, Essex p. 632.

    Rock forming minerals. , () 632..

  • Király, E. 2002: A Nyugat Mecsek, a Görcsönyi-hátság, a Mecsekalja zóna és a mórágyi régió amfibol tartalmú kőzeteinek fejlődéstörténete vékonycsiszolatos, elektron-mikroszondás es geokémiai vizsgálatok alapján (Evolution of amphibole bearing rocks from Western Mecsek, Görcsöny Hill, Mecsekalja zone and Mórágy region based on petrographical, electron-microprobe and geochemical investigations). - Ph.D. theses, Eötvös University. Manuscript in Hungarian, p. 182.

    A Nyugat Mecsek, a Görcsönyi-hátság, a Mecsekalja zóna és a mórágyi régió amfibol tartalmú kőzeteinek fejlődéstörténete vékonycsiszolatos, elektron-mikroszondás es geokémiai vizsgálatok alapján (Evolution of amphibole bearing rocks from Western Mecsek, Görcsöny Hill, Mecsekalja zone and Mórágy region based on petrographical, electron-microprobe and geochemical investigations). , () 182..

    • Search Google Scholar
  • Kistler, R.W., E.D. Ghent, J.R. O'Neil 1981: Petrogenesis of garnet-two-mica granites in the Ruby Mountains. - J. Geophys. Res., 86, pp. 10591-10606.

    'Petrogenesis of garnet-two-mica granites in the Ruby Mountains. ' () 86 J. Geophys. Res. : 10591 -10606.

    • Search Google Scholar
  • Kretz, R. 1983: Symbols for rock-forming minerals. - Am. Min., 68, pp. 277-279.

    'Symbols for rock-forming minerals. ' () 68 Am. Min. : 277 -279.

  • Leake, B.E. 1967: Zoned garnets from the Galway Granite and its aplites. - Earth Planet. Sci. Lett., 3, pp. 311-316.

    'Zoned garnets from the Galway Granite and its aplites. ' () 3 Earth Planet. Sci. Lett. : 311 -316.

    • Search Google Scholar
  • Leake, B.E. 1974: The crystallization history and mechanism of emplacement of the western part of the Galway Granite, Connemara, western Ireland. - Mineralogical Magazine, 39, pp. 498-513.

    'The crystallization history and mechanism of emplacement of the western part of the Galway Granite, Connemara, western Ireland. ' () 39 Mineralogical Magazine : 498 -513.

    • Search Google Scholar
  • Lelkes-Felvári, Gy., P. Árkai, W. Frank, G. Nagy 2000: Late Variscan ultramylonite from the Mórágy Hills, SE Mecsek Mts., Hungary. - Acta Geol. Hung., 43/1, pp. 65-84.

    'Late Variscan ultramylonite from the Mórágy Hills, SE Mecsek Mts., Hungary. ' () 43/1 Acta Geol. Hung. : 65 -84.

    • Search Google Scholar
  • Manning, D.A.C. 1983: chemical variation in garnets from aplites and pegmatites, peninsular Thailand. - Mineralogical Magazine, 47, pp. 353-358.

    'chemical variation in garnets from aplites and pegmatites, peninsular Thailand. ' () 47 Mineralogical Magazine : 353 -358.

    • Search Google Scholar
  • Droop, G.T.R. 1987: A general equation for estimating Fe3+ concentrations in ferromagnesian and oxides from microprobe analyses, using stochiometric criteria. - Mineralogical Magazine, 51, pp. 431-436.

    'A general equation for estimating Fe3+ concentrations in ferromagnesian and oxides from microprobe analyses, using stochiometric criteria. ' () 51 Mineralogical Magazine : 431 -436.

    • Search Google Scholar
  • Green, T.H. 1977: Garnet in silicic liquids and its possible use as P-T indicator. - Contr. Mineral. Petrology, 65, 59-67.

    'Garnet in silicic liquids and its possible use as P-T indicator. ' () 65 Contr. Mineral. Petrology : 59 -67..

    • Search Google Scholar
  • Fülöp, J. 1994: Magyarország geólogiája. Paleozoikum II (The geology of Hungary, Paleozoic II). -Akadémiai Kiadó, Budapest, p. 445.

    'Magyarország geólogiája. Paleozoikum II (The geology of Hungary, Paleozoic II). ' () Akadémiai Kiadó, Budapest : 445..

    • Search Google Scholar
  • Miller, C.F., E.F. Stoddard 1981: The role of manganese in the paragenesis of Magmatic garnet: an example from the Old Woman-Pitue range, California. - J. Geol. 89, pp. 233-246.

    'The role of manganese in the paragenesis of Magmatic garnet: an example from the Old Woman-Pitue range, California. ' () 89 J. Geol. : 233 -246.

    • Search Google Scholar
  • Passchier, C.W., R.A.J. Trouw 1996: Microtectonics. - Springer-Verlag Berlin, Heidelberg, p. 289.

    'Microtectonics. ' () Springer-Verlag Berlin, Heidelberg : 289..

Acta Geologica Hungarica
Language English
Size  
Year of
Foundation
1952
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changed title
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Founder Magyar Tudományos Akadémia
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Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5278 (Print)
ISSN 1588-2594 (Online)