ČOPJAKOVÁ, Renata, Petr SULOVSKÝ and Bruce PATERSON. Trace elements in garnets of felsic granulites as sediment provenance indicators. Journal of the Czech Geological Society. Praha: Czech Geological Society, 2003, vol. 48, 1-2, p. 34-35. ISSN 1210-8197.
Other formats:   BibTeX LaTeX RIS
Basic information
Original name Trace elements in garnets of felsic granulites as sediment provenance indicators
Name in Czech Trace elements in garnets of felsic granulites as sediment provenance indicators
Name (in English) Trace elements in garnets of felsic granulites as sediment provenance indicators
Authors ČOPJAKOVÁ, Renata (203 Czech Republic, guarantor), Petr SULOVSKÝ (203 Czech Republic) and Bruce PATERSON (826 United Kingdom of Great Britain and Northern Ireland).
Edition Journal of the Czech Geological Society, Praha, Czech Geological Society, 2003, 1210-8197.
Other information
Original language Czech
Type of outcome Article in a journal
Field of Study 10500 1.5. Earth and related environmental sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/03:00058723
Organization unit Faculty of Science
Keywords in English garnet chemistry; trace elements; granulites; foreland basin; provenance; Bohemian Massif; European Variscides
Tags Bohemian massif, European Variscides, foreland basin, garnet chemistry, granulites, provenance, trace elements
Tags International impact, Reviewed
Changed by Changed by: RNDr. Petr Sulovský, Ph.D., učo 2157. Changed: 11/11/2003 21:52.
Abstract
The Lower Carboniferous Culm Basin is part of the larger European Variscan foreland basin. The youngest sediments of the Myslejovice Formation contain heavy mineral assemblages dominated by pyrope-almandine garnets. This paper compares the major element (electron microprobe) and trace element (LA-ICP-MS) compositions of detrital pyrope-almandine garnets from the Luleč Conglomerates with garnets from selected granulites of the Czech Massif for the purpose of studying the provenance of the Culm sediments. Detrital low grossular pyrope-almandine garnets can only be matched with some granulites and leptynites of the Bohemian Massif. At the present-day level of erosion of the Bohemian Massif, granulite garnets have higher calcium and/or lower magnesium concentrations. The compositions and zoning patterns of pyrope-almandine garnets from the Luleč quarry compare well with granulite garnets from the Miroslav Crystalline Unit and small Moldanubian granulite bodies west of Jihlava. Pyrope-almandine garnets from leptynites of the Polička Crystalline Unit and the Náměšť Granulite Massif show large differences in REE patterns. The results indicate that the sediment provenance may well have been changing during the deposition of the Luleč Conglomerates.
Abstract (in English)
The Lower Carboniferous Culm Basin is part of the larger European Variscan foreland basin. The youngest sediments of the Myslejovice Formation contain heavy mineral assemblages dominated by pyrope-almandine garnets. This paper compares the major element (electron microprobe) and trace element (LA-ICP-MS) compositions of detrital pyrope-almandine garnets from the Luleč Conglomerates with garnets from selected granulites of the Czech Massif for the purpose of studying the provenance of the Culm sediments. Detrital low grossular pyrope-almandine garnets can only be matched with some granulites and leptynites of the Bohemian Massif. At the present-day level of erosion of the Bohemian Massif, granulite garnets have higher calcium and/or lower magnesium concentrations. The compositions and zoning patterns of pyrope-almandine garnets from the Luleč quarry compare well with granulite garnets from the Miroslav Crystalline Unit and small Moldanubian granulite bodies west of Jihlava. Pyrope-almandine garnets from leptynites of the Polička Crystalline Unit and the Náměšť Granulite Massif show large differences in REE patterns. The results indicate that the sediment provenance may well have been changing during the deposition of the Luleč Conglomerates.
PrintDisplayed: 28/7/2024 22:32