International Geological Journal - Official Journal of the Carpathian-Balkan Geological Association

UPPER JURASSIC RADIOLARITES OF THE CZERTEZIC SUCCESSION AND COMPARISON WITH THE KYSUCA SUCCESSION IN THE EAST-SLOVAK PART OF THE PIENINY KLIPPEN BELT (WESTERN CARPATHIANS, SLOVAKIA)

Pages: 109 - 119

Authors: LADISLAVA OZVOLDOVA, JOZEF JABLONSKY, LENKA FRANTOVA

Abstract: In the more shallow-water Czertezic Succession, the stratigraphical interval of maximum deepening of the Pieniny sedimentary basin in the Upper Jurassic is not represented by typical radiolarite sequences with radiolarians, representing middle Callovian–early Oxfordian to late Oxfordian–early Kimmeridgian (U.A.Zone 8–U.A.Zone 10), as we can observe in the deep-water Kysuca Succession, but by radiolarian limestones with radiolarian cherts and irregular layers of radiolarites. Their sedimentation began here only in the Oxfordian. The radiolarian microfauna is of middle-late Oxfordian to late Oxfordian–early Kimmeridgian age (U.A.Z.9–U.A.Z.10). In four sections in the locality Litmanova fifty-eight taxons and one new species Archaeospongoprunum mizutanii Ozvoldova, n.sp. were identified in the assemblages. The high content of spumellarians (70–80 %) could reflect the paleogeographical and paleoceanographical conditions of sedimentation.

Keywords: Jurassic, Western Carpathians, Pieniny Klippen Belt, radiolarian limestones, radiolarites, radiolarians

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