Deciphering the geochronology of a large granitoid pluton (Karkonosze Granite, SW Poland): an assessment of U-Pb zircon SIMS and Rb-Sr whole-rock dates relative to U-Pb zircon CA-ID-TIMS
作者： R. Kryza , C. Pin , T. Oberc-Dziedzic , Q.G. Crowley , A. Larionov
DOI: 10.1080/00206814.2014.886364
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摘要: Granitoid plutons are often difficult to radiometrically date precisely due the possible effects of protracted and complex magmatic evolution, crustal inheritance, and/or partial re-setting radiogenic clocks. However, apart from natural/geological issues, methodological analytical problems may also contribute blurring geochronological data. This be exemplified by Variscan Karkonosze Pluton (SW Poland). High-precision chemical abrasion (CA) ID-TIMS zircon data indicate that two main rock types, porphyritic equigranular, this igneous body were both emplaced at ca. 312 Ma, while field evidence points a younger age for latter. is in contrast earlier reported SIMS (SHRIMP) dates scattered mainly between 322 302 Ma. In an attempt overcome dispersion, least part caused lead loss, CA technique was used before SHRIMP analysis. The 206Pb/238U obtained way sample granite 322 ± 3...
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J. C. Hunziker, Potassium Argon Dating Lectures in Isotope Geology. pp. 52- 76 ,(1979) , 10.1007/978-3-642-67161-6_5
Hans Cloos, Einführung in die tektonische Behandlung magmatischer Erscheinungen (Granittektonik) Borntraeger. ,(1925)
Stuart Ross Taylor, Scott Mellin McLennan, The continental crust : its composition and evolution : an examination of the geochemical record preserved in sedimentary rocks Published in <b>1985</b> in Oxford by Blackwell scientific. ,(1985)
Stanisław Mazur, Strukturalna i metamorficzna ewolucja wschodniej okrywy granitu Karkonoszy w południowej części Rudaw Janowickich i Grzbiecie Lasockim. Geologia Sudetica. ,vol. 29, pp. 31- 103 ,(1995)
Stanislaw Achramowicz, Christopher Fanning, Andrej Zelazniewicz, Refining the granite, gneiss and schist interrelationships within the Lusatian–Izera Massif, West Sudetes, using SHRIMP U-Pb zircon analyses and new geologic data Geologia Sudetica. ,vol. 41, pp. 67- 84 ,(2009)
E. Hegner, A. Kröner, J. Hammer, J. Hammer, M. Krauss, G. Haase, K.-H. Bielicki, J. Eidam, Geochronology and Nd-Sr systematics of Lusatian granitoids: significance for the evolution of the Variscan orogen in east-central Europe International Journal of Earth Sciences. ,vol. 83, pp. 357- 376 ,(1994) , 10.1007/BF00210551
Stanisław Mazur, Paweł Aleksandrowski, Ryszard Kryza, Teresa Oberc-Dziedzic, None, The Variscan Orogen in Poland Geological Quarterly. ,vol. 50, pp. 89- 118 ,(2006)
Jiří Žák, Kryštof Verner, Jiří Sláma, Václav Kachlík, Marta Chlupáčová, Multistage magma emplacement and progressive strain accumulation in the shallow‐level Krkonoše‐Jizera plutonic complex, Bohemian Massif Tectonics. ,vol. 32, pp. 1493- 1512 ,(2013) , 10.1002/TECT.20088
N. Petford, A. R. Cruden, K. J. W. McCaffrey, J.-L. Vigneresse, Granite magma formation, transport and emplacement in the Earth's crust. Nature. ,vol. 408, pp. 669- 673 ,(2000) , 10.1038/35047000
Teresa Oberc-Dziedzic, Ryszard Kryza, Joanna Białek, Variscan multistage granitoid magmatism in Brunovistulicum: petrological and SHRIMP U-Pb zircon geochronological evidence from the southern part of the Strzelin Massif, SW Poland Geological Quarterly. ,vol. 54, pp. 301- 324 ,(2010)