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Siliciclastics in the Upper Triassic dolomite formations of the Krizna Unit (Maid Fatra Mountains, Western Carpathians): constraints for the Carnian Pluvial Event in the Fatric Basin
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SYSNO ASEP 0360817 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Siliciclastics in the Upper Triassic dolomite formations of the Krizna Unit (Maid Fatra Mountains, Western Carpathians): constraints for the Carnian Pluvial Event in the Fatric Basin Author(s) Sýkora, M. (SK)
Siblík, Miloš (GLU-S) RID, SAI
Soták, J. (SK)Source Title Geologica Carpathica. - : Slovenská akadémia vied - ISSN 1335-0552
Roč. 62, č. 2 (2011), s. 121-138Number of pages 18 s. Publication form WWW - WWW Language eng - English Country SK - Slovakia Keywords Carnian event ; Upper Triassic dolomites ; Western Carpathians ; Krizna Unit ; shaly interbeds ; lingulids ; conchostracans Subject RIV DB - Geology ; Mineralogy CEZ AV0Z30130516 - GLU-S (2005-2011) UT WOS 000290603900002 EID SCOPUS 79955877178 DOI 10.2478/v10096-011-0011-1 Annotation The Upper Triassic carbonates of the Krizna Unit in the eastern part of the Krivanska Mala Fatra Mts contain the unique siliciclastic interbeds. They are developed between the Ramsau Dolomite Formation and the Hauptdolomite Formation, and comprise alternating dark grey shales and pale grey dolomites. Such a shaly-dolomite formation is unknown from the Upper Triassic formations of the Krizna Unit, which makes it possible to define a new lithostratigraphic unit (Triznovo Formation). The Ramsau Dolomites beneath the Trzinovo Formation contain microfauna of Carnian foraminifers. Therefore, the Carnian age has also been constrained for the Triznovo Formation, which by the reduced carbonate productivity and enhanced terrigenous influx could be related to the Reingraben Event. This event related to the "Carnian Pluvial Episode" is also inferred in the Trzinovo Formation by the presence of lingulide brachiopods (Lingularia) and spinicaudatan crustaceans (Euestheria). This fauna provides evidence of not fully marine conditions of the Trzinovo Formation, influenced by continental freshwater influx and humid climate. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2012
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