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Complex examination of the upper Paleozoic siliciclastic rocks from Southern Transdanubia, SW Hungary: mineralogical, petrographic, and geochemical study

Andrea Varga, Gyorgy Szakmany, Tibor Argyelan, Sandor Jozsa, Bela Raucsik and Zoltan Mathe
Complex examination of the upper Paleozoic siliciclastic rocks from Southern Transdanubia, SW Hungary: mineralogical, petrographic, and geochemical study (in Sedimentary provenance and petrogenesis; perspectives from petrography and geochemistry, Jose Arribas (editor), Salvatore Critelli (editor) and Mark J. Johnsson (editor))
Special Paper - Geological Society of America (2007) 420: 221-240

Abstract

A vertical section of Upper Paleozoic sandstones from southern Transdanubia (Mecsek-Villany area, Tisza mega-unit, Hungary) has been analyzed for major and trace elements, including rare earth elements (REEs). In addition, the clay mineralogy of the sandstone samples and the petrography and geochemistry of gneiss and granitoid clasts extracted from the associated conglomerates have been determined. Geochemistry of the sandstone samples analyzed in this study shows that these rocks were predominantly derived from a felsic continental source; nevertheless, compositions vary systematically up-section. The Pennsylvanian (Upper Carboniferous) Teseny Formation has higher SiO (sub 2) and lower Na (sub 2) O, CaO, Sr, high field strength element (HFSE), and Sigma REE contents relative to the Permian strata. Its high K (sub 2) O and Rb contents together with the presence of abundant illite-sericite suggest a potassium metasomatism in this formation. Clay mineralogy and large ion lithophile element (LILE) contents of the Lower Permian Korpad Formation vary spatially and are interpreted as local variations in composition of the source region and postdepositional conditions. Zr and Hf abundances and REE patterns, however, show that this formation was derived from mature upper continental crust. The Upper Permian Cserdi Formation has higher TiO (sub 2) , Th, U, Y, Cr, and heavy (H) REE contents, and higher Cr/Th and Cr/Zr ratios relative to the underlying formations. These trends can be explained by a sedimentary system dominated by highly weathered detritus derived from combined recycled-orogen, basement-uplift, and volcanic-arc provenance in the Teseny Formation, with an increased proportion of less weathered detritus derived from combined volcanic and basement-uplift provenances in the Permian formations. Characteristics of the Cserdi unit may reflect relatively proximal derivation from a felsic volcanic source.


ISSN: 0072-1077
EISSN: 2331-219X
Coden: GSAPAZ
Serial Title: Special Paper - Geological Society of America
Serial Volume: 420
Title: Complex examination of the upper Paleozoic siliciclastic rocks from Southern Transdanubia, SW Hungary: mineralogical, petrographic, and geochemical study
Title: Sedimentary provenance and petrogenesis; perspectives from petrography and geochemistry
Author(s): Varga, AndreaSzakmany, GyorgyArgyelan, TiborJozsa, SandorRaucsik, BelaMathe, Zoltan
Author(s): Arribas, Joseeditor
Author(s): Critelli, Salvatoreeditor
Author(s): Johnsson, Mark J.editor
Affiliation: Eotvos Univesity, Department of Petrology and Geochemistry, Budapest, Hungary
Affiliation: Universidad Complutense de Madrid, Departamento de Petrologia y Geoquimica, Madrid, Spain
Pages: 221-240
Published: 2007
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
ISBN: 978-0-8137-2420-1
References: 54
Accession Number: 2007-114019
Categories: Sedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Includes appendix
Illustration Description: illus. incl. sects., strat. cols., 5 tables, sketch maps
N45°45'00" - N47°22'00", E16°04'60" - E19°01'60"
Secondary Affiliation: Universita della Calabria, ITA, ItalyCalifornia Coastal Commission, USA, United StatesUniversity of Veszprem, HUN, HungaryMecsek Ore Environment, HUN, Hungary
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200747
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