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The Upper Cretaceous variegated shales in the Ropianka Formation of the Magura Nappe (Outer Carpathians) : age and lithostratigraphic position

Waśkowska Anna, Szczęch Mateusz

Geological Quarterly

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2023

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Vol. 67, No. 2

art. no. 18

EN

The lithological characteristics and age analysis of the variegated Farony Shale are presented for the first time. The Farony Shale occurs in the Lubomierz and Rabka areas in the Bystrica Subunit. It is located within medium- and thin-bedded sandy dominated turbidites of the Campanian–Paleocene Ropianka Formation. It is comprised of red shales laminated or interlayered with strongly bioturbated green shales. Exposures of the Farony Shale are observed along a distance of ~25 km, in the form of a narrow belt. The age of the variegated deposits is estimated based on agglutinated foraminifera to late Campanian–earliest Maastrichtian. Their deposition was associated with low-energy conditions and a temporary limitation of the supply of sandy material to the inner part of the Magura Basin.

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Stratigraphy and geological structure of the Magura Nappe in the south-western part of the Gorce Mountains, Outer Carpathians, Poland

Szczęch Mateusz, Waśkowska Anna

Annales Societatis Geologorum Poloniae

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2023

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Vol. 93, No. 2

103--136

EN

The south-western part of the Gorce Mts (Outer Carpathians) is composed of flysch deposits of the Krynica and Bystrica subunits of the Magura Nappe. The Krynica Subunit includes the Late Cretaceous–Paleocene Ropianka Fm, the Early Eocene Beloveža Fm, the Early Eocene–Oligocene Magura Fm and the Oligocene–Early Miocene Malcov Fm, while the Bystrica Subunit includes the Middle Eocene–?Oligocene Magura Fm, represented mainly by the thick-bedded Magura Sandstone. Thin- and medium-bedded sandstone-shale turbidites predominate in the other formations. The lithostratigraphic units are dated on the basis of foraminifers. The studied deposits accumulated in the southern part of the Magura Basin. Their detrital material was derived from a ridge, bounding the basin in the south. In the study area, the Krynica Subunit overthrusts the Bystrica Subunit. The studied deposits are folded, thrust and cut by numerous faults. The Turbacz Thrust Sheet and the newly identified Kudłoń Thrust Sheet were distinguished in the Krynica Subunit. Faults of different lengths and throws are transverse or oblique. Some of them form complex dislocation zones with lengths of up to several km. In general, the high-resolution digital elevation model DEM contributed significantly to progress in the geological and geomorphological research.

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Geotouristic bicycle path around Nowy Targ (Carpathians, Poland)

Szczęch Mateusz, Cieszkowski Marek, Szczęch Szymon, Chodyń Rafał

Geotourism / Geoturystyka

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2020

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nr 3-4 (62-63)

3--18

EN

The area in the vicinity of Nowy Targ is located within the northern part of the Orawa-Nowy Targ Basin and the southern slopes of the Gorce Mountains in the Polish sector of the Outer Carpathians. Geologically, the region is built of the Upper Cretaceous–Palaeogene turbiditic deposits representing sedimentary successions of the Krynica Subunit of the Magura Nappe and the Neogene–Quaternary fresh-water deposits filling the Orawa-Nowy Targ Basin. The Magura Nappe in the described area is represented by the thick-bedded sandstones of the Magura Formation and thin-and medium-bedded sandstone-shale deposits of the Malcov Formation, which are well-exposed in numerous outcrops, especially in the Łopuszna stream valley. The Magura Nappe deposits were folded and cut by a fault system in the Miocene. The presented area displays varied geomorphological relief and picturesque landscapes. Moreover, rare species of fauna and flora occurring here, as well as the still-alive culture of the Podhale Highlanders and continuously improving tourist infrastructure additionally contribute to the development of geotourism in this area. In addition, this area is an increasingly popular place among cyclists, thanks to the development of a network of bicycle paths, therefore the proposed geotourist bicycle path will extend the offer for this group of tourists.

PL

Prezentowane okolice Nowego Targu zlokalizowane są w obrębie północnego obrzeżenia Kotliny Orawsko-Nowotarskiej oraz na południowych zboczach Gorców w polskim sektorze Karpat Zewnętrznych. Obszar ten zbudowany jest z późnokredowo-paleogeńskich utworów turbidytowych reprezentujących sukcesję osadową podjednostki krynickiej płaszczowiny magurskiej oraz lądowe osady neogeńsko-czwartorzędowe wypełniające Kotlinę Orawsko-Nowotarską. Formacja magurska w opisywanym terenie reprezentowana jest przez gruboławicowe piaskowce formacji magurskiej oraz cienko- i średnioławicowe utwory piaskowcowo-łupkowe formacji malcowskiej, które odsłaniają się w licznych odkrywkach, w szczególności w obrębie doliny potoku Łopuszna. W miocenie utwory płaszczowiny magurskiej zostały sfałdowane i pocięte systemem uskoków. Obszar ten ma urozmaiconą rzeźbę i malownicze krajobrazy. Jednocześnie występujące tu rzadkie gatunki fauny i flory, wciąż żywa kultura górali podhalańskich oraz coraz lepsza infrastruktura turystyczna sprzyjają rozwojowi geoturystyki w tym obszarze. Dodatkowo obszar ten jest coraz bardziej popularnym miejscem wśród rowerzystów, dzięki rozwojowi sieci ścieżek rowerowych, dlatego też proponowana geoturystyczna trasa rowerowa będzie poszerzeniem oferty dla tej grupy turystów.