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Lower Cretaceous succession and biostratigraphy near overthrust plane of Silesian Nappe (Ostravice River Channel, Outer Western Carpathians, Czech Republic)
- 1.0377033 - ÚGN 2013 RIV CZ eng J - Journal Article
Halasová, E. - Vašíček, Zdeněk - Jansa, L. - Reháková, D. - Skupien, P.
Lower Cretaceous succession and biostratigraphy near overthrust plane of Silesian Nappe (Ostravice River Channel, Outer Western Carpathians, Czech Republic).
Bulletin of Geosciences. Roč. 87, č. 2 (2012), s. 383-406. ISSN 1214-1119. E-ISSN 1802-8225
Institutional research plan: CEZ:AV0Z30860518
Keywords : Silesian Unit * Lower Cretaceous * thin sections * calcareous nannofossils * dinoflagellates
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 1.141, year: 2012
http://www.geology.cz/bulletin/fulltext/1326_Halasova.pdf
Contact between the Upper Cretaceous rocks of the Subsilesian Nappe and the overthrust Lower Cretaceous rocks of the Silesian Nappe is uniquely exposed at locality Ostravice River Chanell. The deposits of the Silesian Nappe in the zone of overthrust plane that belong to the Hradiste Formation are tectonically affected. The more exact age of the mentioned rocks has never been documented earlier. The most significant stratigraphic data were obtained by the analysis of calcareous nannofossils. The sediments of the Hradiste Formation in the zone of overthrust of the Silesian Nappe belong to two partial tectonic slices. Sediments of slice on the contact between both the Nappes is, according to calcareous nannoplankton, of latest Hauterivian to Early Barremian age. In the area of the rapids, the other slice lying on it is of Late Hauterivian age. Micritic limestones occurring in the Late Hauterivian slice indicate basinal sedimentation above the carbonate dissolution level.
Permanent Link: http://hdl.handle.net/11104/0209295
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