Lower Cretaceous succession and biostratigraphy near overthrust plane of Silesian Nappe (Ostravice River Channel, Outer Western Carpathians, Czech Republic)

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dc.contributor.author Halásová, Eva
dc.contributor.author Vašíček, Zdeněk
dc.contributor.author Jansa, Lubomír
dc.contributor.author Rehákova, Daniela
dc.contributor.author Skupien, Petr
dc.date.accessioned 2012-05-02T13:26:16Z
dc.date.available 2012-05-02T13:26:16Z
dc.date.issued 2012
dc.identifier.citation Bulletin of geosciences. 2012, vol. 87, no. 2, p. 383-406. cs
dc.identifier.issn 1214-1119
dc.identifier.issn 1802-8225
dc.identifier.uri http://hdl.handle.net/10084/90399
dc.description.abstract 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 Hradiště 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 Hradiště 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. Character of intercalated sandstones indicates of its turbiditic origin. Limestone interclasts in layers of gravelly sandstones document the erosion of the Upper Jurassic to early Lower Cretaceous carbonate platform by turbiditic currents. Further up the river, deposits belonging to higher, partial tectonic slices and stratal members of the Silesian Nappe were identified. At the beginning, a small part of the Veřovice Formation of Late Aptian age is exposed. After interruption, a huge outcrop of the Lhoty Formation of Middle and Late Albian age follows and then again the higher part of Hradiště Formation of Early Aptian age. cs
dc.format.extent 6265478 bytes cs
dc.format.mimetype application/pdf cs
dc.language.iso en cs
dc.publisher Česká geologická služba cs
dc.relation.ispartofseries Bulletin of geosciences cs
dc.relation.uri http://dx.doi.org/10.3140/bull.geosci.1326 cs
dc.title Lower Cretaceous succession and biostratigraphy near overthrust plane of Silesian Nappe (Ostravice River Channel, Outer Western Carpathians, Czech Republic) cs
dc.type article cs
dc.identifier.location Ve fondu ÚK cs
dc.identifier.doi 10.3140/bull.geosci.1326
dc.rights.access openAccess
dc.type.version publishedVersion
dc.description.source Web of Science cs
dc.description.volume 87 cs
dc.description.issue 2 cs
dc.description.lastpage 406 cs
dc.description.firstpage 383 cs
dc.identifier.wos 000302138700013

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