Monazite Th-U-total Pb geochronology and P-T thermodynamic modelling in a revision of the HP-HT metamorphic record in granulites from Stary Gierałtów (NE Orlica-Śnieżnik Dome, SW Poland)

• Autorzy: Budzyń B. , Jastrzębski M. , Kozub-Budzyń G. A. , Konečný P.

Identyfikatory

DOI

10.7306/gq.1232

• Języki publikacji: EN

Abstrakty

EN

Thermodynamic modelling and monazite Th-U-total Pb dating via electron microprobe were used to improve the pressure, temperature and timing constraints of the HP-HT metamorphic record in granulites from Stary Gierałtów (NE Orlica-Śnieżnik Dome (OSD), SW Poland). The thermodynamic calculations constrained the P-T conditions to 20-22 kbar and ca. 920ºC in the felsic to intermediate granulites and 20-22 kbar and ca. 970ºC in the mafic granulite. These conditions are considered to closely represent the peak temperatures experienced by these rocks. In the intermediate granulite, the matrix monazite and monazite inclusions in garnet and allanite yielded an age of 349±2.5 Ma. An HP-HT metamorphic event with temperature conditions exceeding 900ºC, which are greater than the closure temperatures of most geochronometers, must have disturbed and completely reset the isotopic systems, including the Th-U-Pb system in the monazite. Consequently, this resetting prevented us from constraining the age of potential earlier metamorphic events or the igneous protolith. The 349±2.5 Ma age reflects the timing of the late-stage HP-HT event and cooling below 900ºC related to the initial exhumation of the granulites. A comparison of the new P-T-t constraints with previous data from the NE Orlica-Śnieżnik Dome indicates that the activation of the channels that exhumed the HP rocks to mid-crustal depths most likely initiated at ca. 350 Ma, and all the metamorphic rocks in the OSD likely shared a common Variscan evolution after ca. 340 Ma.

Słowa kluczowe

EN

monazite; Th-U-total Pb dating; thermodynamic modelling; granulite; Orlica-Śnieżnik Dome; Bohemian Massif

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2015
• Tom: Vol. 59, No. 4
• Strony: 700--717
• Opis fizyczny: Bibliogr. 68 poz., rys., tab., wykr.

Twórcy

autor

Budzyń B.

• Institute of Geological Sciences, Polish Academy of Sciences, Research Centre in Kraków, Senacka 1, 31-002 Kraków, Poland

autor

Jastrzębski M.

• Institute of Geological Sciences, Polish Academy of Sciences, Research Centre in Wrocław, Podwale 75, 50-449 Wrocław, Poland

autor

Kozub-Budzyń G. A.

• AGH Univer sity of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, al. A. Mickiewicza 30, 30-059 Krakow, Poland

autor

Konečný P.

• Geological Institute of Dionýz Štúr, Mlynská dolina 1, SK–81704 Bratislava, Slovak Republic

Bibliografia

• 1. Anczkiewicz, R., Szczepański, J., Mazur, S., Storey, C., Crowley, Q., Villa, I.M., Thirlwall, M.F., Jeffries, T.E., 2007. Lu-Hf geochronology and trace element distribution in garnet: Implications for uplift and exhumation of ultra-high pressure granuites in the Sudetes, SW Poland. Lithos, 95: 363-380.
• 2. Bakun-Czubarow, N., 1991a. Geodynamic significance of the Variscan high-P eclogite-granulite series of the Złote Mountains in the Sudetes. Publications of Institute of Geophysics, Polish Academy of Sciences, A19, 236: 215-244.
• 3. Bakun-Czubarow, N., 1991b. On the possibility of occurrence of quartz pseudomophs after coesite in the eclogite-granulite rock series of the Złote Mountains in the Sudetes (SW Poland). Archiwum Mineralogiczne, 47: 5-16.
• 4. Bakun-Czubarow, N., 1992. Quartz pseudomorphs after coesite and quartz exsolutions in eclogitic clinopyroxenes of the Złote Mountains in the Sudetes (SW Poland). Archiwum Mineralogiczne, 48: 3-25.
• 5. Bakun-Czubarow, N., 1998. Ilmenite-bearing eclogites of the West Sudetes - their geochemistry and mineral chemistry. Archiwum Mineralogiczne, 51: 29-110.
• 6. Bröcker, M., Klemd, R., Kooijman, E., Berndt, J., Larionov, A., 2010. Zircon geochronology and trace element characteristics of eclogites and granulites from the Orlica-Śnieżnik complex, Bohemian Massif. Geological Magazine, 147: 339-362.
• 7. Brueckner, H.K., Medaris, L.G., Bakun-Czubarow, N., 1991. Nd and Sr age and isotope patterns from Variscan eclogites of the eastern Bohemian Massif. Neues Jahrbuch für Mineralogie, Abhandlungen, 163: 169-196.
• 8. Budzyń, B., Konečný, P., Kozub-Budzyń, G.A., 2015. Stability of monazite and disturbance of the Th-U-Pb system under experimental conditions of 250-350°C and 200-400 MPa. Annales Societatis Geologorum Poloniae, 85: 405-424.
• 9. Chopin, F., Schulmann, K., Skrzypek, E., Lehmann, J., Dujardin, J.R., Martelat, J.E., Lexa, O., Corsini, M., Edel, J.B., Štípská, P., Pitra, P., 2012. Crustal influx, indentation, ductile thinning and gravity redistribution in a continental wedge: building a Moldanubian mantled gneiss dome with underthrust Saxothuringian material (European Variscan belt). Tectonics, 31: TC1013.
• 10. Cherniak, D.J., Pyle, J.M., 2008. Th diffusion in monazite. Chemical Geology, 256: 52-61.
• 11. Cherniak, D.J., Watson, E.B., 2001. Pb diffusion in zircon. Chemical Geology, 172: 5-24.
• 12. Cherniak, D.J., Watson, E.B., Grove, M., Harrison, T.M., 2004. Pb diffusion in monazite: a combined RBS/SIMS study. Geochimica et Cosmochimica Acta, 68: 829-840.
• 13. Coggon, R., Holland, T.J.B., 2002. Mixing properties of phengitic micas and revised garnet-phengite thermobarometers. Journal of Metamorphic Geology, 20: 683-696.
• 14. Cymerman, Z., Piasecki, M.A.J., Seston, R., 1997. Terranes and terrane boundaries in the Sudetes, Northeast Bohemian Massif. Geological Magazine, 134: 717-725.
• 15. Don, J., Dumicz, M., Wojciechowska, I., Żelaźniewicz, A., 1990. Lithology and tectonics of the Orlica-Śnieżnik Dome, Sudetes - recent state of knowledge. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen, 197: 159-188.
• 16. Don, J., Skácel, J., Gotowała, R., 2003. The boundary zone of the East and West Sudetes on the 1:50 000 scale geological map of the Velké Vrbno, Staré Město and Śnieżnik Metamorphic Units. Geologia Sudetica, 35: 25-59.
• 17. Dumicz, M., 1993. The history of eclogites in the geological evolution of the Śnieżnik crystal line complex based on mesostructural analysis. Geologia Sudetica, 27: 21-64.
• 18. Ferrero, S., Wunder, B., Walczak, K., O Brien, P.J., Ziemann, M.A., 2015. Preserved near ultrahigh-pressure melt from continental crust subducted to mantle depths. Geology, 43:447-450.
• 19. Franke, W., Żelaźniewicz, A., 2000. The eastern termination of the Variscides: terrane correlation and kinematic evolution. Geological Society Special Publications, 179: 63-86.
• 20. Ganguly, J., Tirone, M., Hervig, R.L., 1998. Diffusion kinetics of samarium and neodymium in garnet, and a method for determining cooling rates of rocks. Science, 281: 805-807.
• 21. Gardes, E., Jaoul, O., Montel, J., Seydoux-Guillaume, A.M., Wirth, R., 2006. Pb diffusion in monazite: an experimental study of Pb2+ + Th4+ - 2Nd3+ interdiffusion. Geochimica et Cosmochimica Acta, 70: 2325-2336.
• 22. Gordon, S.M., Schneider, D.A., Manecki, M., Holm, D.K., 2005. Exhumation and metamorphism of an ultrahigh-grade terrane: geochronometric investigations of the Sudetes Mountains (Bohemia), Poland and Czech Republic. Journal of the Geological Society, 162: 841-855.
• 23. Green, E.C.R., Holland, T.J.B,, Powell, R. 2007. An order-disorder model for omphacitic pyroxenes in the system jadeite-diopside-hedenbergite-acmite, with applications to eclogite rocks. American Mineralogist, 92: 1181-1189.
• 24. Holland, T.J.B., Powell, R., 1998. An internally consistent thermodynamic data set for phases of petrological interest. Journal of Metamorphic Geology, 16: 309-343.
• 25. Holland, T.J.B., Powell, R., 2003. Activity-composition relations for phases in petrological calculations: an asymmetric multicomponent formulation. Contributions to Mineralogy and Petrology, 145: 492-501.
• 26. Jastrzębski, M., Żelaźniewicz, A., Majka, J., Murtezi, M., Bazarnik, J., Kapitonov, I., 2013. Constraints on the Devonian-Carboniferous closure of the Rheic Ocean from a multi-method geochronology study of the Staré Město Belt in the Sudetes (Poland and the Czech Republic). Lithos, 170-171: 54-72.
• 27. Jastrzębski, M., Stawikowski, W., Budzyń, B., Orłowski, R., 2014. Migmatization and large-scale folding in the Orlica-Śnieżnik Dome, NE Bohemian Massif: Pressure-temperature-time-deformation constraints on Variscan terrane assembly. Tectonophysics, 630: 54-74.
• 28. Jastrzębski, M., Budzyń, B., Stawikowski, W., 2015a. StrucIural, metamorphic and geochronological record in the Goszów quartzites of the Orlica-Śnieżnik Dome (SW Poland): implications for the polyphase Variscan tectonometamorphism of the Saxothuringian Terrane. Geological Journal, doi: 10.1002/gj.2647
• 29. Jastrzębski, M., Żelaźniewicz, A., Murtezi, M., Sergeev, S., Larionov, A.N., 2015b. The Moldanubian Thrust Zone - a terrane boundary in the Central European Variscides reIined based on lithostratigraphy and U-Pb zircon geochronology. Lithos, 220-223: 116-132.
• 30. Kądziałko-Hofmokl, M., Szczepański, J., Werner, T., Jeleńska, M., Nejbert, K. 2013. Paleomagnetism and magnetic mineralogy of metabasites and granulites from Orlica-Śnieżnik Dome (Central Sudetes). Acta Geophysica, 61: 535-568.
• 31. Kelsey, D.E., Hand, M., 2015. On ultrahigh temperature crustal metamorphism: Phase equilibria, trace element thermometry, bulk com position, heat sources, timescales and tectonic settings. Geoscience Frontiers, 6: 311-356.
• 32. Klemd, R., Bröcker, M., 1999. Fluid influence on mineral reactions in ultrahigh-pressure granulites: a case study in the Śnieżnik Mts. (West Sudetes, Poland). Contributions to Mineralogy and Petrology, 135: 358-373.
• 33. Konečný, P., Siman, P., Holický, I., Janák, M., Kollárová, V., 2004. Method of monazite dating by means of the electron microprobe (in Slovak with English abstract). Mineralia Slovaca, 36: 225-235.
• 34. Kozłowski, K., 1965. The granulitic complex of Stary Gierałtów - East Sudetes. Archiwum Mineralogiczne, 25: 5-122.
• 35. Kryza, R., Pin, C., Vielzeuf, D., 1996. High-pressure granulites from the Sudetes (south-west Poland): evidence of crustal subduction and collisional thickening in the Variscan Belt. Journal of Metamorphic Geology, 14: 531-546.
• 36. Kusiak, M.A., Suzuki, K., Dunkley, D.J., Lekki, J., Bakun-Czubarow, N., Paszkowski, M., Budzyń, B., 2008. EPMA and PIXE dating of monazite In granulites from Stary Gierałtów, NE Bohemian Massif, Poland. Gondwana Research, 14: 674-685.
• 37. Lange, U., Bröcker, M., Armstrong, R., Trapp, E., Mezger, K., 2005. Sm-Nd and U-Pb datI ng of high-pressure granulites from the Złote and Rychleby Mts (Bohemian Massif, Po land and Czech Republic). Journal of Metamorphic Geology, 23: 133-145.
• 38. Lee, J.K.W., Williams, I.S., Ellis, D.J., 1997. Pb, U and Th diffusion in natural zircon. Nature, 390: 159-162.
• 39. Matte, P., Maluski, H., Rajlich, P., Franke, W., 1990. Terrane boundaries in the Bohemian Massif: result of large-scale Variscan shearing. Tectonophysics, 177: 151-170.
• 40. Monazite Th-U-total Pb geochronology and P-T thermodynamic modelling. 2006. The Variscan Orogen in Poland. Geological Quarterly, 50 (1): 89-118.
• 41. McDonough, W.F., Sun, S.-S., 1995. The composition of the Earth. Chemical Geology, 120: 223-253.
• 42. Montel, J.M., Foret, S., Veschambre, M., Nicollet, C., Provost, A., 1996. Electron microprobe datI ng of monazite. Chemical Geology, 131: 37-53.
• 43. Nakamura, D., 2009. A new formulation of garnet-clinopyroxene geothermometer based on accumulation and statistical analysis of a large experimental data set. Journal of Metamorphic Geology, 27: 495-508.
• 44. Pearce, J.A., Harris, N.B.W., Tindle, A.G., 1984. Trace element discrimination diagrams forthe tectonic interpretation of granitic rocks. Journal of Petrology, 25: 956-983.
• 45. Petrík, I., Konečný, P., 2009. Metasomatic replacement of inherited metamorphic monazite in a biotite-garnet granite from the Nízke Tatry Mountains, Western Carpathians, Slovakia: Chemical dating and evidence fordisequilibrium melting. American Mineralogist, 94: 957-974.
• 46. Pouba, Z., Paděra, K., Fiala, J., 1985. Omphacite granulite from the NE marginal area of the Bohemian Massif (Rychleby Mts). Neues Jahrbuch für Mineralogie Abhandlungen, 151: 29-52.
• 47. Redlińska-Marczyńska, A., Żelaźniewicz A., 2011. Gneisses in the Orlica-Śnieżnik Dome, West Sudetes: a single batholitic protolith or a more complex origin? Acta Geologica Polonica, 61: 307-339.
• 48. Sawicki, L., 1995. Geological Map of Lower Silesia with adjacent Czech and German Territories 1:100 000. Państwowy Instytut Geologiczny. Warszawa.
• 49. Scherer, E.E., Kenneth, C.L., Blichert-Toft, J., 2000. Lu-Hf garnet geochronology: Closure temperature relative to the Sm-Nd system and the effects of trace mineral inclusions. Geochimica et Cosmochimica Acta, 64: 3413-3432.
• 50. Schulmann, K., Gayer, R., 2000. A model of an obliquely developed continental accretionary wedge: NE Bohemian Massif. Journal of the Geological Society, 156: 401-416.
• 51. Schulmann, K., Lexa, O., Štípská, P., Racek, M., Tajčmanová, L., Konopásek, J., Edel., J.-B., Peschler, A., Lehmann, J., 2008. Vertical extrusion and horizontal channel flowof orogenic lower crust: key exhumation mechanisms in large hot orogens? Journal of Metamorphic Geology, 26: 273-297.
• 52. Schulmann, K., Oliot, E., Košuličová, M., Montigny, R., Štípská, P., 2014. Variscan thermal overprints exemplified by U-Th-Pb monazite and K-Ar muscovite and biotite dating at the eastern margin of the Bohemian Massif (East Sudetes, Czech Republic). Journal of Geosciences, 59: 389-413.
• 53. Skrzypek, E., Štípská, P., Schulmann, K., Lexa, O., Lexová, M., 2011. Prograde and retrograde metamorphic fabrics - a key for understanding burial and exhumation in orogens (Bohemian Massif). Jour nal of Metamorphic Geology, 29: 451-472.
• 54. Smulikowski, K., 1967. Eclogites of the Śnieżnik Mountains in the Sudetes. Geologia Sudetica, 3: 157-174.
• 55. Smulikowski, K., 1979. Polymetamorphic evolution of the crystal- line complex of Śnieżnik and Góry Złote Mts in the Sudetes. Geologia Sudetica, 14: 7-76.
• 56. Smulikowski, K., Bakun-Czubarow, N., 1973. New data concerning the granulite-eclogite rock ser ies of Stary Gierałtów, East Sudetes, Poland. Bulletin de l'Academie PoIonaise des Sch ences, 21: 25-34.
• 57. Szczepański, J., Anczkiewicz, R., Mazur, S., 2008. Gierałtów granulites - a vestige of an early Variscan ultra-high pressure meta morphism in the Orlica-Śnieżnik Massif, West Sudetes. Mineralogia - Special Papers, 32: 155.
• 58. Štípská, P., Schulmann, K., Kröner, A., 2004. Vertical extrusion and middle crustal spreading of omphacite granulite: a model of syn-convergent exhumation (Bohemian Massif, Czech Republic). Journal of Metamorphic Geology, 22: 179-198.
• 59. Štípská, P., Chopin, F., Skrzypek, E., Schulmann, K., Pitra, P., Lexa, O., Martelat, J.E., Bollinger, C., Žáčková, E., 2012. The juxtaposition of eclogite and mid-crustal rocks in the Orlica-Śnieżnik Dome, Bohemian Massif. Journal of Metamorphic Geology, 30: 213-234.
• 60. Vozárová, A., Konečný, P., Šarinová, K., Vozár, J., 2014. Ordovician and Cretaceous tectonothermal history of the Southern Gemericum Unit from microprobe monazite geochronology (Western Carpathians, Slovakia). International Journal of Earth Sciences, 103: 1005-1022.
• 61. Walczak, K., 2011. Interpretacja datowań Sm-Nd i Lu-Hf granatów w skałach wysokociśnieniowych i wysokotemperaturowych w świetle badań dystrybucji pierwiastków śladowych (in Polish). Unpublished Ph.D. thesis. Institute of Geological Sciences, Polish Academy of Sciences, Kraków.
• 62. White, R.W., Powell, R., Holland, T.J.B., Worley, B.A., 2000. The effect of TiO2 and Fe2O3 on metapelitic assemblages at greenschist and amphibolite facies conditions: mineral equilibria calculations in the sysIem K2O-FeO-MgO-Al2O3-SiO2-H2O-TiO2-Fe2O3. Journal of Metamorphic Geology, 18: 497-511.
• 63. White, R.W., Powell, R., Holland, T.J.B., 2007. Progress relating to calculation of partial melting equilibria for metapelites. Journal of Metamorphic Geology, 25: 511-527.
• 64. Whitney, D.L., Evans, B.W., 2010. Abbreviations for names of rock-forming minerals. American Mineralogist, 95: 185-187.
• 65. Wil liams, M.L., Jercinovic, M.J., 2002. Microprobe monazite geo- chronology: putting absolute time into microstructural analyses. Journal of Structural Geology, 24: 1013-1028.
• 66. Williams, M.L., Jercinovic, M.J., Hetherington, C.J., 2007. Microprobe monazite geochronology: understanding geologic processes by integrating composition and chronology. Annual Review of Earth and Planetary Sciences, 35: 137-175.
• 67. Williams, M.L., Jercinovic, M.J., Harlov, D.E., Budzyń, B., Hetherington, C.J., 2011. Resetting monazite ages during fluid-related alteration. Chemical Geology, 283: 218-225.
• 68. Żelaźniewicz, A., Jastrzębski, M., Redlińska-Marczyńska, A., Szczepański, J., 2014. The Orlica-Śnieżnik Dome, the Sudetes, in 2002 and 12 years later. Geologia Sudetica, 42: 105-123.