doiSerbia

Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia

Bragin Nikita Yu. (Geological Institute of Russian Academy of Sciences, Moscow, Russia)
Bragina Liubov G. (Geological Institute of Russian Academy of Sciences, Moscow, Russia)
Đerić Nevenka (University of Belgrade, Faculty of Mining and Geology, Serbia)
Gerzina-Spajić Nataša (University of Belgrade, Faculty of Mining and Geology, Serbia)

Upper Triassic (upper carnian - rhaetian) grey cherty limestone are known in the internal Dinarides under the name of “Grivska Formation”. Sediments of the Grivska Formation are characterized by microfossils only - conodonts and radiolarians, and did not yield any macrofossils. Micropa - laeontological research of Upper Triassic siliceous rocks was performed at the locality Lim river, in the vicinity of Bistrica Village in SW Serbia. Radiolarian assemblages are characterized by such species as Capnodoce anapetes De Wever, C. sarisa De Wever, Sarla hadrecaena (De Wever), Praehexasaturnalis tenuispinosus (Donofrio & Mostler), Xiphothecaellla longa (Kozur & Mock). According to the radiolarian data, the investigated cherts are of latest carnian to early norian age.

Keywords: Grivska Formation, cherts, radiolarians, Late Triassic, Internal Dinarides, SW Serbia

Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 176015