文章基本信息

标题：The Grajcarek Succession (Lower Jurassic–mid Paleocene) in the Pieniny Klippen Belt, West Carpathians, Poland: a stratigraphic synthesis
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作者：Krzysztof BIRKENMAJER ; Przemysław GEDL
期刊名称：Rocznik Polskiego Towarzystwa Geologicznego
印刷版ISSN：0079-3663
出版年度：2017
卷号：87
期号：1
页码：55-88
DOI：10.14241/asgp.2017.003
语种：English
出版社：Polskie Towarzystwo Geologiczne
摘要：A concise stratigraphic synthesis of the Grajcarek Succession of the Pieniny Klippen Belt (WestCarpathians, Poland) is presented. This succession consists of 12 lithostratigraphic units with the rank of formation, and two with the rank of member, spanning the geological time from middle Toarcian (late Early Jurassic)to Maastrichtian (Late Cretaceous) and mid Paleocene. The stratigraphical column starts with deep-water flysch(the Szlachtowa Fm; Toarcian–Aalenian through Bajocian–?lower Bathonian), followed by dysoxic shales, marlsand limestones (the Opaleniec Fm; Bajocian–Bathonian). The previously distinguished Krzonowe and Stembrowformations, are downgraded to members. Late Bathonian–Oxfordian times were characterized by the widelyoccurring deposition of abyssal radiolarites and shales, which is represented by the Sokolica Radiolarite Fm andthe Czajakowa Radiolarite Fm, common to both the Grajcarek and Klippen successions. Red nodular limestonesand aptychus marls (the Czorsztyn Limestone Fm; Kimmeridgian–lower Tithonian) overlie the radiolarites.Above, pelagic cherty limestones occur (the Pieniny Limestone Fm; Tithonian–Aptian). These are followed byLower Cretaceous predominantly dark shales and marls (the Kapuœnica Fm; Aptian–Albian, the Wronine Fm;Albian, and the Hulina Fm; Albian–Cenomanian), succeeded by abyssal, red shales (the Malinowa Shale Fm;upper Cenomanian–Campanian), and these in turn by grey, marly, flyschoid strata (the Ha³uszowa Fm; ?Campanian). The Grajcarek Succession terminates with the Jarmuta Fm (Maastrichtian–mid Paleocene). It consists ofsedimentary breccias, often with large olistoliths of Jurassic–Cretaceous rocks, and conglomerates and sandstonesin a southern zone, giving way to proximal flysch and distal flysch facies further north. This was the time oforogenic Laramian folding events, associated with subaerial and submarine erosion. A sedimentary hiatus separates the Jarmuta Fm flysch (Maastrichtian) from the Szczawnica Fm (Upper Paleocene–Eocene) in both theKlippen and Grajcarek successions. This hiatus seems to diminish and finally close in a northward direction, in theMagura Nappe succession.
关键词：Pieniny Klippen Belt; Grajcarek Succession; West Carpathians; Poland; Jurassic; Cretaceous; stratigraphy