Ordovician passive continental margin magmatism in the Central-European Variscides: U–Pb zircon data from the SE part of the Karkonosze-Izera Massif, Sudetes, SW Poland

2008 ◽  
Vol 99 (1) ◽  
pp. 27-46 ◽  
Author(s):  
Teresa Oberc-Dziedzic ◽  
Ryszard Kryza ◽  
Ksenia Mochnacka ◽  
Alexander Larionov
Keyword(s):  
Continental Margin ◽  
Passive Continental Margin ◽  
Central European ◽  
Sw Poland ◽  
European Variscides

Multiple Archaean to Early Palaeozoic events of the northern Gondwana margin witnessed by detrital zircons from the Radzimowice Slates, Kaczawa Complex (Central European Variscides)

2007 ◽  
Vol 145 (1) ◽  
pp. 85-93 ◽  
Author(s):  
RAFAŁ TYSZKA ◽  
RYSZARD KRYZA ◽  
JAN A. ZALASIEWICZ ◽  
ALEXANDER N. LARIONOV
Keyword(s):  
North Africa ◽  
Detrital Zircons ◽  
Central European ◽  
Late Cambrian ◽  
Gondwana Margin ◽  
Sw Poland ◽  
Depositional Age ◽  
Ordovician Magmatism ◽  
Early Palaeozoic ◽  
European Variscides

AbstractSIMS dating of detrital zircons from the stratigraphically enigmatic Radzimowice Slates of the Kaczawa Mountains (Sudetes, SW Poland), near the eastern termination of the European Variscides, has yielded age populations of: (1) 493–512 Ma, corresponding to late Cambrian to early Ordovician magmatism and constraining a maximum depositional age; (2) between 550 and 650 Ma, reflecting input from diverse Cadomian sources; and (3) older inherited components ranging to c. 3.3 Ga, with age spectra similar to those from Gondwanan North Africa. The new data show that the Radzimowice Slates cannot form a Proterozoic base to the Kaczawa Mountains succession, as suggested by earlier models, but was deposited, at the earliest, as an extensional basin-fill, during a relatively late stage of the break-up of this part of northern Gondwana.

Early Palaeozoic initial-rift volcanism in the Central European Variscides (the Kaczawa Mountains, Sudetes, SW Poland): evidence from SIMS dating of zircons

2007 ◽  
Vol 164 (6) ◽  
pp. 1207-1215 ◽  
Author(s):  
R. Kryza ◽  
J.A. Zalasiewicz ◽  
S. Mazur ◽  
P. Aleksandrowski ◽  
S. Sergeev ◽  
...  
Keyword(s):  
Central European ◽  
Sw Poland ◽  
Early Palaeozoic ◽  
European Variscides

The earliest ostracods from the Ordovician of the Prague Basin, Czech Republic

2014 ◽  
Vol 64 (4) ◽  
pp. 367-392 ◽  
Author(s):  
Karolína Lajblová ◽  
Petr Kraft
Keyword(s):  
Czech Republic ◽  
Bohemian Massif ◽  
Massif Central ◽  
Central European ◽  
Middle Ordovician ◽  
Prague Basin ◽  
Barrandian Area ◽  
Fossil Assemblages ◽  
European Variscides

Abstract The earliest ostracods from the Bohemian Massif (Central European Variscides) have been recorded from the Middle Ordovician of the Prague Basin (Barrandian area), in the upper Klabava Formation, and became an abundant component of fossil assemblages in the overlying Šarka Formation. Both early ostracod associations consist of eight species in total, representing mainly eridostracans, palaeocopids, and binodicopids. The revision, description, or redescription of all species and their distribution in the basin is provided. Their diversification patterns and palaeogeographical relationships to ostracod assemblages from other regions are discussed.

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