Emendation of the Grivska formation in its type area (Dinaridic Ophiolite Belt, SW Serbia)

Abstract

Age, microfacies and depositional realm of the Grivska Formation is controversially discussed due to the fact that detailed investigations are missing. Based on reinvestigations of the type locality of the Grivska Formation and in adjacent areas, the following results can be drawn: 1) The Grivska Formation is of Late Triassic (Early Carnian to Rhaetian) age according to conodont dating. 2) Sedimentological and microfacies studies evidenced that the Grivska Formation was deposited on the continental slope and transitional to the Neo-Tethys Ocean. Based on the results of these investigations in the type area and several reference sections in the Dinaridic Ophiolite Belt, the Grivska Formation is emended and clearly defined. In the Dinaridic Ophiolite Belt, the Grivska Formation occurs only as clasts and blocks in the ophiolitic melange. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. ON-176015]

Keywords

• Neo-Tethys continental slope
• Late Triassic
• stratigraphy
• microfacies
• ophiolitic melange