Journal of

GEOsciences

  (Formerly Journal of the Czech Geological Society)

Original Paper

Vladimír Žáček, Radek Škoda, Petr Sulovský

U-Th-rich zircon, thorite and allanite-(Ce) as main carriers of radioactivity in the highly radioactive ultrapotassic melasyenite porphyry from the Šumava Mts., Moldanubian Zone, Czech Republic

Journal of Geosciences, volume 54 (2009), issue 4, 343 - 354

DOI: http://doi.org/10.3190/jgeosci.053

Babůrek J, Fürich V, Goliáš V, Hanžl P, Kadlecová R, Lhotský P, Nekovařík Č, Nývlt D, Osterrothová K, Pertoldová J, Strnad L, Šebesta J, Vlčková L (2000) Explanatory notes and basic geological map of the Czech Republic, scale 1:25 000, sheet 22-332 Kašperské Hory. Unpublished manuscript, Czech Geological Survey. Prague (in Czech)

Bea F (1996) Residence of REE, Y, Th and U in granites and crustal protoliths; implications for the chemistry of crustal melts. J Petrol 37: 521-552
http://doi.org/10.1093/petrology/37.3.521

Davis DW, Krogh TE (2000) Preferential dissolution of ²³⁴U and radiogenic Pb from a-recoil-damaged lattice sites in zircon: implications for thermal histories and Pb isotopic fractionation in the near surface environment. Chem Geol 172: 41-58
http://doi.org/10.1016/S0009-2541(00)00235-7

Ewing RC, Meldrum A, Wang LM, Weber, WJ, Corrales LR (2003) Radiation effects in zircon. In: Hanchar JM, Hoskin PWO (eds) Zircon. Reviews in Mineralogy and Geochemistry 53: pp 388-425
http://doi.org/10.2113/0530387

Förster HJ (2006) Composition and origin of intermediate solid solutions in the system thorite-xenotime-zircon-coffinite. Lithos 88: 35-55
http://doi.org/10.1016/j.lithos.2005.08.003

Förster HJ, Harlov DE, Milke R (2000) Composition and Th-U-total Pb ages of huttonite and thorite from Gillespie’s Beach, South Island, New Zealand. Canad Mineral 38: 675-684
http://doi.org/10.2113/gscanmin.38.3.675

Geisler T, Pidgeon RT, Kurtz R, van Bronswijk W, Schleicher H (2003a) Experimental hydrothermal alteration of partially metamict zircon. Amer Miner 88: 1496-1513
http://doi.org/10.2138/am-2003-1013

Geisler T, Trachenko K, Ríos S, Dove MT, Salje EKH (2003b) Impact of self-irradiation damage on the aqueous durability of zircon (ZrSiO₄): implications for its suitability as nuclear waste form. Jour of Physics: Condensed Matter 15: 597-605
http://doi.org/10.1088/0953-8984/15/37/L07

Geisler T, Rashwan AA, Rahn MKW, Poller U, Zwingmann H, Pidgeon RT, Schleicher H, Tomaschek F (2003c) Low-temperature hydrothermal alteration of natural metamict zircons from the Eastern Desert, Egypt. Mineral Mag 67: 485-508
http://doi.org/10.1180/0026461036730112

Grover V, Tyagi AK (2005) Preparation and bulk thermal expansion studies in M_1-xCe_xSiO₄ (M = Th, Zr) system, and stabilization of tetragonal ThSiO₄. Jour of Alloys and Compounds 390: 112-114
http://doi.org/10.1016/j.jallcom.2004.05.091

Holub FV (1997) Ultrapotassic rocks of the durbachite series in the Bohemian Massif: petrology, geochemistry and petrogenetic interpretation. Sbor Geol Věd ložisk Geol Mineral 31: 2-24

Holub FV (2009) Ultrapotassic melasyenite and melagranite porphyries in the Central Bohemian Plutonic Complex and in the Moldanubian of Šumava. In: Kohút M, Šimon L (eds) Spoločný kongres Slovenskej a Českej geologickej spoločnosti, Zborník abstraktov a exkurzný sprievodca. Štátny geologický ústav Dionýza Štúra, Bratislava, pp 76-77 (in Czech)

Hoskin PWO (2000) Patterns of chaos: fractal statistics and the oscillatory chemistry of zircon. Geochim Cosmochim Acta 64: 1905-1923
http://doi.org/10.1016/S0016-7037(00)00330-6

Hoskin PWO (2005) Trace-element composition of hydrothermal zircon and the alteration of Hadean zircon from the Jack Hills, Australia. Geochim Cosmochim Acta 69: 637-648
http://doi.org/10.1016/j.gca.2004.07.006

Hoskin PWO, Schaltegger U (2003) The composition of zircon and igneous and metamorphic petrogenesis. In Hanchar J, Hoskin PWO (eds) Zircon. Mineralogical Society of America and Geochemical Society Reviews in Mineralogy and Geochemistry 53: pp 27-62

Janoušek V, Holub F (2007) The causal link between HP-HT metamorphism and ultrapotassic magmatism in collisional orogens: case study from the Moldanubian Zone of the Bohemian Massif. Proc Geol Assoc 118: 75-76
http://doi.org/10.1016/S0016-7878(07)80049-6

Meldrum A, Boatner LA, Zinkle SJ, Wang Shi-Xin, Wang Lu-Min, Ewing RC (1999) Effects of dose rate and temperature on the crystalline-to-metamict transformation in the ABO₄ orthosilicates. Canad Mineral 37: 207-221

Nasdala L, Wenzel M, Vavra G, Irmer G, Wenzel T, Kober B (2001) Metamictization of natural zircon: accumulation versus thermal annealing of radioactivity-induced damage. Contrib Mineral Petrol 141: 125-144
http://doi.org/10.1007/s004100000235

Petrík I, Broska I, Lipka J, Siman P (1995) Granitoid allanite-(Ce): substitution relations, redox conditions and REE distributions (on an example of I-type granitoids, Western Carpathians, Slovakia). Geol Carpath 46: 79-94

Pointer CM, Ashworth JR, Ixer RA (1988) The zircon-thorite mineral group in metasomatized granite, Ririwai, Nigeria 1. Geochemistry and metastable solid solution of thorite and coffinite. Mineral Petrol 38: 245-262
http://doi.org/10.1007/BF01167091

Pouchou JL, Pichoir F (1985) ‘PAP’ (φ-ρ-Z) correction procedure for improved quantitative microanalysis. Microbeam Anal. In: Armstrong JT (ed) San Francisco Press, pp 104-106

Škoda R, Klementová M, Čopjaková R (2009) Study of zircon from alkali syenite near Naloučany, Strážek Moldanubicum, Czech Republic. Acta Mus Moraviae Sci Nat 94: 47-59

Sulovský P (2001) Accessory minerals of the Třebíč durbachite massif (SW Moravia). Miner Slov 33: 467-472

Taylor SR, McLennan SM (1985) The Continental Crust: its Composition and Evolution. Oxford, Blackwell, pp 1-312

Utsunomiya S, Valley JW, Cavosie AJ, Wilde SA, Ewin RC (2007) Radiation damage and alteration of zircon from a 3.3 Ga porphyritic granite from the Jack Hills, Western Australia. Chem Geol 236: 92-111
http://doi.org/10.1016/j.chemgeo.2006.09.003

Žáček V, Sulovský P (2005) The dyke swarm of evolved tourmaline-bearing aplitic leucogranite and its link to the Vydra Pluton (Moldanubian Batholith), Šumava Mts., Czech Republic. J Czech Geol Soc 50: 107-118
http://doi.org/10.3190/jcgs.981

Žáček V, Břízová E, Lhotský P, Krupička J, Lysenko V, Mrnková J, Nováková D, Skácelová D, Šebesta J, Šrámek J, Verner K, Žák J (2005) Explanatory notes and basic geological map of the Czech Republic, scale 1:25 000, sheet 22-334 Kvilda. Unpublished manuscript, Czech Geological Survey, Prague (in Czech)