Facies analysis of the Silurian shale-siltstone succession in Pomerania (northern Poland)

• Autorzy: Jaworowski K.
• Języki publikacji: EN

Abstrakty

EN

The Silurian deposits of Pomerania occur in the foreland of the Pomeranian Caledonides which are the SE continuation of the Danish-North-German Caledonides. The Silurian sequence in Pomerania is represented largely by graptolitic clay- and mud-shales deposited in a hemipelagic environment. From the Wenlock through Late Ludlow, slow deposition of hemipelagic clays and muds was repeatedly interrupted by silty debris flows and turbidity currents. Many of the siltstone interbeds were reworked by bottom currents. Clastic material was sourced from the Caledonian accretionary prism stretching along the collision zone of Baltica and East Avalonia. The Silurian shale-siltstone succession in Pomerania represents a Caledonian exoflysch i.e. syn-collision clastics accumulated in a foredeep developed on the East European Craton. The diachronous appearance of siltstone interbeds in the graptolitic shales indicate that collision between Baltica and East Avalonia was associated with sinistral strike-slip movement along the edge of the East European Craton.

Słowa kluczowe

EN

northern Poland; Silurian; submarine silty debrites; turbidites; exoflysch

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2000
• Tom: Vol. 44, Nr 3
• Strony: 297--315
• Opis fizyczny: fot., tab., wykr., bibliogr. 46 poz.

Twórcy

autor

Jaworowski K.

• Polish Geological Institute, Rakowiecka 4, PL-00-975 Warszawa, Poland

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