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Provenance implications of Th–U–Pb electron microprobe ages from detrital monazite in the Carboniferous Upper Silesia Coal Basin, Poland |
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| Authors: | Monika Agnieszka Kusiak Artur K&#x;dzior Mariusz Paszkowski Kazuhiro Suzuki Ignacio Gonzlez-lvarez Boles&#x;aw Wajsprych Marek Doktor |
| Institution: | aInstitute of Geological Sciences, Polish Academy of Science, Kraków Research Centre, ul. Senacka 1, 31-002 Kraków, Poland bCenter for Chronological Research, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan cDepartment of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, SK, Canada, S7N 5E2 dInstitute of Geological Sciences, Polish Academy of Science, Department of Geology of Sudetes, ul. Podwale 75, 50-449 Wroc?aw, Poland |
| Abstract: | This paper reports the results of CHIME (chemical Th–U–Pb isochron method) dating of detrital monazites from Carboniferous sandstones in the Upper Silesia Coal Basin (USCB). A total of 4739 spots on 863 monazite grains were analyzed from samples of sandstone derived from six stratigraphic units in the sedimentary sequence. Age distributions were identified in detrital monazites from the USCB sequence and correlated with specific dated domains in potential source areas. Most monazites in all samples yielded ca. 300–320 Ma (Variscan) ages; however, eo-Variscan, Caledonian and Cadomian ages were also obtained. The predominant ages are comparable to reported ages of certain tectonostratigraphic domains in the polyorogenic Bohemian Massif (BM), which suggests that various crystalline lithologies in the BM were the dominant sources of USCB sediments. |
| Keywords: | Provenance Bohemian Massif Upper Silesia Coal Basin Geochronology Electron microprobe dating Monazite |
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