Anisian Strelovec Formation in the Robanov kot, Savinja Alps (Northern Slovenia)

Abstract

A detailed sedimentological features of the Slatinski plaz section with a transition from the deep-water Anisian (Illyrian) Strelovec Formation to the Ladinian shallow-water Contrin Formation have been presented. The Strelovec Formation is divided into fie different lithostratigraphic units that are characterised by dark hemipelagic and pelagic thin-bedded limestones and dolomitic mudstones that are frequently intercalated with deposits of gravitymass flws, slump and slide to fie-grained low-density turbidity origin. The Strelovec Formation was deposited in a hydrodynamically quiet, pelagic deeper-water anoxic environment, most probably on a gentle platform slope. In the upper part of the formation, the presence of olistolith blocks of shallow-water limestones indicates the closing of the prograding shallow-water platform wedge. Massive dolostones of Unit 6 mark the complete filing of the basin and the beginning of the shallow-water sedimentation of the Contrin Formation in the Early Ladinian.

Keywords

• Middle Triassic
• Illyrian
• basin
• anoxic
• fine-grained turbidites
• slumps
• progradation