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Regionalizacja tektoniczna Polski-Góry Świętokrzyskie i regiony przyległe

Konon A.

Przegląd Geologiczny

2008

Vol. 56, nr 10

921-926

The Holy Cross Mountains Fold Belt, the Odrzywół–Ćmielów Graben, the Radom-Kraoenik Horst and the Mazovia-Lublin Graben are located in the contact zone between the Paleozoic Platform and the East European Craton, eastwards of the Variscan foreland basin. The Holy Cross Mountains Fold Belt consists of the Kielce and the Łysogóry Fold Zones. The boundary between the Kielce and Łysogóry Fold Zones is formed by the Holy Cross Fault. Southwestern border of the Kielce Fold Zone is probably consistent with the extent of the folds in the Małopolska Block. The Łysogóry Fold Zone is probably bordered from northeast by the Skrzynno Fault, which is also a boundary of the Radom-Kraoenik Horst from the southwest. The Radom-Kraoenik and the Mazovia-Lublin Graben are separated by the Kazimierz-Ursynów Fault. Northeastern border of the graben is the Kock Fault.

Lithostratigraphy and regional significance of the Nowa Słupia Group (Upper Silurian) of the Łysogóry Region (Holy Cross Mountains, Central Poland)

Kozłowski W.

Acta Geologica Polonica

2008

Vol. 58, no. 1

43-74

The Ludlovian-Lochkovian succession of the Łysogóry Region of the Holy Cross Mountains (Central Poland) represents an infill of a Caledonian foreland basin situated at the SW margin of the East European Craton (EEC). The facies pattern and transport directions indicate that the source area was located westward from the basin and was separated from the Baltica mainland by the epicratonic sea. The 2.5 km thick succession, defined here as the Nowa Słupia Group, has been subdivided into 9 formations (from bottom to top: Trzcianka, Trochowiny,Winnica /Rachtanka, Sarnia Zwola /Bronkowice, Podchełmie, Rudki and Bostówformations).A revised lithostratigraphic scheme has been constructed. The lower part of the Nowa Słupia Group (Trzcianka and Trochowiny formations) represents the underfilled stage of the basin development and is composed of flysch-like sediments. The upper part of the group represents the filled to overfilled stage of the basin. In the latter stage the lateral migration of two main facies: red continental deposits (represented by the Rachtanka and Podchełmie formations) and open shelf hemipelagic sediments (represented by the Sarnia Zwola and Rudki formations and referred here to the Podlasie facies), is observed. The lateral facies migrations probably resulted from eustatic fluctuations. The two main facies zones are separated by a narrow belt of neritic sediments (represented by the Winnica, Bronkowice and Bostów formations),which are known for their rich benthic fauna. The facies trends observed show that during the latest Ludlovian through early Pridolian, the boundary between the continental and marine facies in the Łysogóry Region was oriented parallel to the Baltica margin (NNW-SSE).