D 2006

Tectonostratigraphic development of the Devonian and Carboniferous in the Brunovistulian terrane, Czech Republic

KALVODA, Jiří, Ondřej BÁBEK, Jaromír LEICHMANN, Rostislav MELICHAR, Petr ŠPAČEK et. al.

Basic information

Original name

Tectonostratigraphic development of the Devonian and Carboniferous in the Brunovistulian terrane, Czech Republic

Name in Czech

Tektonostratigrafický vývoj devonu a karbonu brunovistulického teránu, Česká republika

Authors

KALVODA, Jiří (203 Czech Republic), Ondřej BÁBEK (203 Czech Republic), Jaromír LEICHMANN (203 Czech Republic), Rostislav MELICHAR (203 Czech Republic) and Petr ŠPAČEK (203 Czech Republic, guarantor)
Aretz, M., Herbig, H.-G. (Eds.).

Edition

Köln, Carboniferous Conference Cologne. From Platform to Basin, Sept. 4-10 2006. Kölner Forum für Geologie und Paläontologie, 15. p. 53-54, 2 pp. 2006

Publisher

Institut für Geologie und Mineralogie der Universität zu Köln

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10500 1.5. Earth and related environmental sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/06:00017189

Organization unit

Faculty of Science

ISBN

3-934027-18-0

Keywords in English

stratigraphy; Brunovistulian terrane; Rhenohercynian zone; Variscan orogeny; tectonostratigraphy; Devonian; Carboniferous
Změněno: 23/9/2006 16:03, doc. RNDr. Rostislav Melichar, Dr.

Abstract

V originále

The early Variscan phase of the evolution of Brunovistulian terrane was characterized by the formation of Devonian extensional basins and WPA volcanic activity. The compressive phase is recorded in synorogenic flysch sedimentation, which shows a distinct polarity. The oldest flysch (Protivanov and Andelska Hora Fm.) contains clastic micas from early Paleozoic crystalline rocks that are assumed to be derived either from an active Brunovistulian margin, now covered by the Lugodanubian nappes, or from the terranes of Armorican affinity. At the beginning of the Namurian the development of the Moravo-Silesian late Paleozoic basin was terminated by coal-bearing paralic and limnic sediments. The progressive Carboniferous stacking of nappes and their impingement on the Laurussian foreland led to crustal thickening and shortening. The Devonian preorogenic and Carboniferous synorogenic sedimentation bears close similarity to the Rhenohercynian Zone of Germany. Although both regions had a different Late Proterozoic to Early Palaeozoic history (Kalvoda et al. 2003), this parallelism reflects similar geotectonic regimes at the southern margin of Laurussia (Bábek et al. 2006). In both areas crustal extension and differential subsidence accompanied by felsic and basic within-plate volcanism (Floyd 1995) contributed to the development of structural lows and rises in a system of halfgrabens (Lütke 1990, Kalvoda 1998, Kalvoda and Melichar 1999) and brought about a pelagic regime (“Herzynische Fazies”). Nevertheless, there are also some differencies. While the northern highs of the Caledonian Old-Red continent furnished most of the Rhenohercynian basin with siliciclastic input throughout the Devonian, in the Moravosilesian basin the siliclastic input was restricted and connected rather with the initiation of rifting (Kalvoda 1995). It is possible to correlate the structurally highest flysch tectonic units of the Brunovistulian terrane with the Giessen- Harz Nappe based on the following evidence. Tectonic slices of Devonian hemipelagic sediments and volcanites of the Drahany facies domain and the Silurian exotics at the base of the Protivanov unit (Kettner and Remes 1936, Chadima and Melichar 1998, Bábek et al. 2005) are comparable with the “Stiege-Olistostrom” at the base of the Giessen-Harz nappe. The presence of the enigmatic Bohemian Silurian facies and fauna at the base of the Protivanov Fm. is similar to the blocks with Armorican affinities at the base of the Giessen-Harz nappe (Huckriede et al. 2004, Franke 1995). Nevertheless, it should be stressed that the evidence for Armorican affinities in all these blocks is rather weak and similar facies may have developed on the southern margin of Avalonia. As the flysch material of the Giessen-Harz nappe was derived from the Armorican Mid German Crystalline Rise, the correlation with the Protivanov nappe may also be reinforced by the presence of Ordovician and Silurian white micas in the latter (Schneider 2002).

In Czech

Tektonostratigrafický vývoj devonu a karbonu brunovistulického teránu, Česká republika

Links

MSM0021622412, plan (intention)
Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)
Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)