NEHYBA, Slavomír and Vladimír OPLETAL. Sedimentological study of the Nikolčice Formation - evidence of the Middle Jurassic transgression onto the Bohemian Massif (subsurface data). Geological Quarterly. WARSAW, POLAND: POLISH GEOLOGICAL INST, 2017, vol. 61, No 1, p. 138-155. ISSN 1641-7291. Available from: https://dx.doi.org/10.7306/gq.1335.
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Basic information
Original name Sedimentological study of the Nikolčice Formation - evidence of the Middle Jurassic transgression onto the Bohemian Massif (subsurface data)
Authors NEHYBA, Slavomír (203 Czech Republic, guarantor, belonging to the institution) and Vladimír OPLETAL (203 Czech Republic, belonging to the institution).
Edition Geological Quarterly, WARSAW, POLAND, POLISH GEOLOGICAL INST, 2017, 1641-7291.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10500 1.5. Earth and related environmental sciences
Country of publisher Poland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.128
RIV identification code RIV/00216224:14310/17:00096059
Organization unit Faculty of Science
Doi http://dx.doi.org/10.7306/gq.1335
UT WoS 000394563700011
Keywords in English Nikolcice Formation; Middle Jurassic; provenance; shallow marine and nearshore depositional environment
Tags NZ, rivok
Changed by Changed by: Ing. Nicole Zrilić, učo 240776. Changed: 11/4/2018 21:20.
Abstract
The Jurassic sedimentary succession along the eastern margin of the Bohemian Massif starts with mostly fluvial deposits of the Gresten Formation and continues after marine transgression with the deposition of the Nikolčice Formation (Middle Jurassic, Callovian). The provenance and depositional environment of the Nikolčice Formation showed that deposition occurred within offshore, transitional zone, shoreface, foreshore and littoral sand bar environments; however, shoreface and foreshore deposits dominate in the cores studied. The crystalline units along the eastern margins of the Bohemian Massif represent the primary source of deposits of the Nikolčice Formation. An important role was played by acidic and intermediate plutonites and highly metamorphosed metasedimentary rocks (granulite and amphibolite metamorphic facies), which indicates an advanced stage of erosion of the source area. The role of volcanic and intrusive rocks was small. The primary source was followed by an additional recycled source from older sedimentary rocks (especially the Moravo-Silesian Paleozoic deposits - the Líšeň Formation, the Myslejovice Formation). A similarity of the source areas for the Nikolčice Formation and the underlying Gresten Formation was recognised. Identified differences in their source areas are mainly explained by varied erosional levels due to successive exhumation of the source Variscan orogen and possibly also by an expansion of the source area.
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