Age determination of thorianite in phlogopite-bearing spinel-garnet peridotite in the Gföhl Unit, Moldanubian Zone of the Bohemian Massif

Journal of Mineralogical and Petrological Sciences

Volumn 103, Issue 4, 2008, Pages 285-290

  Naemura, Kosuke ^a   Yokoyama, Katsumi ^b   Hirajima, Takao ^a   Svojtka, Martin ^c  

^a KYOTO UNIVERSITY   (Japan)

^b DEPARTMENT OF BOTANY   (Japan)

^c INSTITUTE OF GEOLOGY   (Czech Republic)

Author keywords

Bohemian Massif; Electron microprobe; Garnet peridotite; Geochronology; U Th total Pb age

Indexed keywords

EID: 57049153512     PISSN: 13456296     EISSN: 13493825     Source Type: Journal    
DOI: 10.2465/jmps.080331     Document Type: Conference Paper

References (22)

1. Aftalion, M., Bowes, D.R. and Vrána, S. (1989) Early Carbon-iferous U-Pb zircon age of garnetiferous, perpotassic granulites, Blanský Les massif, Czechoslovakia. Neues Jahrbuch für Mineralogie, Monatshefte, 4, 145-152.
2. Becker, H. (1997) Sm-Nd ages and cooling history of high-temperature garnet peridotite massifs and high-pressure granulites from lower Austria. Contributions to Mineralogy and Petrology 127, 224-236.
3. Becker, H. and Altherr, R. (1992) Evidence from ultrahigh pressure marbles for recycling of sediments into the mantle. Nature, 358, 745-748.
4. Becker, H., Wenzel, T. and Volker, F. (1999) Geochemistry of glimmerites veins in peridotites from Lower Austria - implications for the origin of K-rich magmas in collision zones. Journal of Petrology, 40, 315-338.
5. Bowles, J.F.W. (1990) Age dating of individual grains of uraninite in rocks from electron microprobe analyses. Chemical Geology, 83, 47-53.
6. Brueckner, H.K. and Medaris Jr., L.G. (1998) A tale of two orogens: the contrasting T-P-t history and geochemical evolution of mantle in high- and ultrahigh-pressure metamorphic terranes of the Norwegian Caledonides and the Czech Variscides. Schweizerische Mineralogische und Petrographische Mitteilunuen, 78, 298-307.
7. Carswell, D.A. and O'Brien, P. (1993). Thermobarometry and geotectonic significance of high-pressure granulites: examples from the Moldanubian zone of the Bohemian Massif in the Lower Austria. Journal of Petrology, 34, 427-459.
8. Ferrando, S., Frezzotti, M.L., Dallai, L. and Compagnoni, R. (2005) Multiphase solid inclusions in UHP rocks (Su-Lu, China): Remnants of supercritical silicate rich aqueous fluids released during continental subduction. Chemical Geology, 223, 68-81.
9. Harlow, G.E. (1995) Crystal chemistry of barian enrichment in micas from metasomatized inclusions in serpentine, Motagua fault zone, Guatemala. European Journal of Mineralogy, 7, 775-789.
10. Janeczek, T.. and Ewing, R.C. (1995) Mechanism of lead release from uraninite in the natural fission reactors in Gabon. Geochemica et Cosmochemica Acta, 59, 1917-1931.
11. 2 Raman spectrum indicating the transformation from coesite to quartz in Gföhl migmatitic gneisses in the Moldanubian Zone, Czech Republic. Journal of Mineralogical and Petrological Sciences, 103, 105-111.
12. Kotková, J., Harley, S.L. and Fišera, M. (1997) A vestige of very high-pressure (ca. 28 kbar) metamorphism in the Variscan Bohemian massif, Czech Republic. European Journal of Mineralogy, 9, 1017-1033.
13. Kröner, A., O'Brien, P.J., Nemchin, A.A. and Pidgeon, R.T (2000) Zircon ages for high pressure granulites from South Bohemia, Czech Republic, and their connection to Carboniferous high temperature processes.,Contributions to Mineralogy and Petrology, 138, 127-142.
14. 20 (KMASH). Lithos, 28, 421-434.
15. Medaris Jr.. L.G., Wang, H. H.. Jelinek. E., Mihaljevič. M.. and Jakeš, P. (2005) Characteristics and origins of diverse Variscan peridotites in the Gföhl Nappe, Bohemian massif Czech Republic. Lithos, 82, 1-23.
16. Naemura, K. (2008) The pressure-temperature path and the timing of phlogopite-formation recorded in the spinel-gamet peridotite in the Bohemian Massif pp. 148, Doctor thesis of Kyoto University, Japan.
17. Naemura, K., Hirajima, T. and Svojtka, M. (2007) The P-T path and the origin of phlogopite of spinel-garnet peridotite in the Blanský les granulite massif, Moldanubian zone of the Bohemian Massif Czech Republic. International Association for Gondwana Research Conference series 4, international Association for Gondwana Research, Fukuoka, Japan, 109.
18. O'Reilly, S.Y. and Griffin, WL. (2000) Apatite in the mantle: implications for metasomatic processes and high heat production in Phanerozoic mantle. Lithos, 53, 217-232.
19. Suzuki, K. and Adachi, M. (1991) Precambrian provenance and Silurian metamorphism of the Tsubonosawa paragneiss in the South Kitakami terrane, Northeast Japan, revealed by the chemical Th-U-total Pb isochron ages of monazite, zircon and xenotime. Geochemical Journal, 25, 357-376.
20. Svojtka, M. Košler, J. and Venera, Z. (2002) Dating granulite-facies structures and the exhumation of lower crust in the Moldanubian Zone of the Bohemian Massif. International Journal of Earth Sciences (Geologische Rundschau ), 91, 373-385.
21. Vrána, S. (1989) Perpotassic granulites from southern Bohemia. A new rock type derived from partial melting of crustal rocks under upper mantle conditions. Contributions to Mineralogy and Petrology, 103, 510-522.
22. Vrána, S. amd Frýda, J. (2003) Ultrahigh-pressure grossula-rich garnetite from the Moldenubian Zone, Czech Republic. European Journal of Mineralogy, 15, 43-54.