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Biostratygrafia mikropaleontologiczna utworów kredy górnej i miocenu w wierceniu "Bibice" (okolice Krakowa)

Zapałowicz-Bilan B., Pilarz M., Machaniec E.

Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie

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2009

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T. 35, z. 2/1

95-103

EN

Lower Campanian marls and marly opokas with cherts ("Bibice" borehole, Kraków vicinity) are rich in benthic forams (mainly Stensioeina and Gavelinella species) and rare planktic ones (Hedbergella). The overlying Miocene deposits (Kłodnik and Skawina beds), are developed as conglomerates (equivalent of fresh-water marls in Krakow region) which are completely devoid of microfossils, but younger clays are full of the Badenian forams.

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Palaeontological heritage in the XIXth century and the Physiographic Commission of the Polish Academy of Arts and Sciences in Kraków: museum exhibits or scientific value?

Głowniak E., Wierzbowski A.

Volumina Jurassica

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2006

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Vol. 4, no. 1

252-252

EN

The stratigraphical study of the Upper Jurassic of the Krakow region was already underway in the XIXth century. The results of the first detailed mapping of the area were published by Zaręczny (1894) who collected many of the ammonites which were part of the ammonite collection of the XIXth century Physiographic Commission of the Academy of Arts and Sciences in Krakow. This collection was described by Siemiradzki in 1891. It is now in the Museum of Institute of Geological Sciences of the Polish Academy of Sciences in Krakow. It comprises around 360 specimens representing various ammonite groups: perisphinctids (Perisphinctidae, Ataxioceratidae and Aulacostephanidae - around 70%), Oppeliidae (about 26%), Cardioceratidae (3.4%) and rare phylloceratids (0.5%). Some of specimens were misinterpreted by Siemiradzki (1891, 1899) as Kimmeridgian taxa, resulting in a long lasting controversy about the occurrence of Kimmeridgian deposits in the Krakow region. The major part of the collection, however, represent Oxfordian perisphinctids, including the type specimens of several species described by Siemiradzki (1891 - e.g. Subdiscosphinctes kreutzi, S. mindowe, S. jelskii, "Perisphinctes" cracoviensis, Perisphinctes (Dichotomosphinctes) crotalinus and some others). They constitute a homogenous assemblage of the Middle and Upper Oxfordian, Transversarium and Bifurcatus zones and come mainly from Rudno and/or Brodła n. Krakow. Some of the specimens in the collection, however, are not precisely localized and the origin of some others, in particular those presented by private collectors, may be disputable (cf. Zaręczny 1894): such specimens must be treated with caution for detailed stratigraphical studies. Nevertheless, the collection provides valuable material for the palaeontological studies, and it is essential for the stratigraphical interpretation of exposures which are no longer available, for instance due to abandonment or infill (for instance the former quarries of Krakow Town and Rudno).

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Badenian Radiolaria from the Kraków area (South Poland)

Barwicz-Piskorz W.

Annales Societatis Geologorum Poloniae

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1999

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Vol. 69, No. 3-4

161--172

EN

Thirty four Upper Badenian radiolarian species from the Kraków area have been analysed. Seventeen species are illustrated. This assemblage represents the Dorcadospyris alata radiolarian Zone. The comparision of Badenian Radiolaria assemblage from the Kraków area with the contemporaneous ones from Gliwice area and eastern part of the Carpathian Foredeep shows some dissimilitarity between them. The assemblages from the western part of the Carpathian Foredeep include some warm water species, while assemblages from the central and eastern parts include predominantly cold water species. The comparision of Miocene radiolarian assemblages from Polish part of the Carpathian Feredeep with the contemporaneous ones from Romanian part of the Carpathian Foredeep, Italy (Apeniny Foredeep) and South California (intermountain depression) is also presented.

PL

Z górnego badenu okolic Krakowa opisano zespół promienic (Radiolaria) złożony z 34 gatunków, 17 spośród nich zilustrowano. Zespół ten został włączony do zony radiolariowej Dorcadospyris alata. Porównanie zespołu badeńskich promienic z okolic Krakowa z równowiekowym zespołem z okolic Gliwic oraz z zespołami ze wschodniej części zapadliska przedkarpackiego wykazało istnienie pewnych różnic między nimi. Zespoły z zachodniej części zapadliska przedkarpackiego zawierają kilka gatunków ciepłolubnych promienic, natomiast zespoły z części wschodniej zawierają gatunki typowe dla klimatu chłodnego. Porównano także mioceńskie zespoły promienic z polskiej części Paratetydy z zespołami z Rumunii, Włoch i USA.