Record of palaeoenvironmental changes in a Lower Permian organic-rich lacustrine succession: Integrated sedimentological and geochemical study of the Rudník member, Krkonoše Piedmont Basin, Czech Republic

A new aeduellid actinopterygian from the Lower Permian of the Krkonoše Piedmont Basin (Bohemian Massif) and its relationship to other Aeduellidae

“…Interestingly, species assemblages are very similar in all collecting localities, and consist of conchostracans, acanthodians, elasmobranchs, and actinopterygians, the latter including the genus Paramblypterus (Štamberg & Zajíc 2008). Sedimentological characteristics are also comparable in all localities (Martínek et al 2006).…”

Actinopterygians of the Stephanian sediments of the Krkonoše Piedmont Basin (Bohemian Massif) and their palaeobiogeographic relationship

“…It belongs to a system of intramontaneous basins, which formed in the early post-orogenic phase during the Westphalian and Saxonian times (approximately Moscovian to Sakmarian; Martínek et al 2006). The basin is filled with continental deposits of total thickness of about 1800 m of the Upper Carboniferous (Westphalian D, Stephanian), of the Lower Permian to the Triassic.…”

Provenance study of Permian non-marine sandstones and conglomerates of the Krkonoše Piedmont Basin (Czech Republic): exotic marine limestone pebbles, heavy minerals and garnet composition

“…Outcrop samples: Bel -Bělá, Brd -Brodky, Crm -Čermná, Haj -Hajnice, HP -Honkův potok, Hra -Hrádeček, JDv -Janský Dvůr, KU -Kundratice, N9, NSh, N8 -Náchod, N11 -Dolní Radechová, N310, N311, N313, N314 -Náchod-Běloves, N14 -Havlovice, PL -Prostřední Lánov, Rsk -Roškopov, SP -Stará Paka Railway Station, T21 and T22 -Pekelský vrch, TrP -Trutnov-Poříčí, T2 -Trutnov -Starý Rokytník, U13 -Suchovršice, U8, 9, 10, 12 -Úpice, Zbr -Záboří. magnetite, apatite, garnets and Cr spinel, assuming lowgrade metamorphic and acid igneous source rocks. Sedimentological research has been conducted recently (Blecha et al 1999, Martínek 2003, Martínek et al 2006, but palaeocurrent analysis gives only limited information on provenance, because of the limited amount of suitable outcrops, and the difficulties in correlating important outcrops. Basin-wide unconformities (Fig.…”

“…The depocentres were shifting from the south to the north at the Stephanian B/C boundary, which was noted, e.g., by Pešek (1994Pešek ( , 2005 as a common feature in Central and Western Bohemian Carboniferous-Permian sedimentary basins. The shift in depocentre location was interpreted as a switching of the major displacement from southern to northern marginal faults still in an extensional half-graben setting (Uličný et al 2002, Martínek et al 2006. At the Cisuralian/Guadalupian boundary a major tectonic rearrangement of the basin occurred, probably from an extensional to a strike-slip regime (Uličný et al 2002).…”