Berriasian breccia and calcarenite overlying the Biancone limestone are dated and described as the Bohinj Formation. The microfacies analysis of the breccia clasts reveals that the main source area of the resedimented limestone was a penecontemporaneous carbonate platform (named the Bohinj Carbonate Platform) that developed on top of a nappe stack during the early emplacement of the internal Dinaric units onto the continental margin. The platform correlates regionally with genetically similar isolated carbonate platforms, e.g., with the Plassen Carbonate Platform in the Northern Calcareous Alps and the Kurbnesh Carbonate Platform in Albania.
COBISS.SI-ID: 34472493
Three representative sections of the Tolmin Basin were dated with radiolarians. The maximum time interval of radiolarian cherts was determined to span from the late Bajocian to the early Tithonian and thus correlates well over the entire western Tethys. The Bajocian onset of chert deposition occurred concomitantly with the reorganization of plate boundaries, regional subsidence, and an increase in surface productivity. The intrabasinal distribution of radiolarian cherts demonstrates, that sedimentation rates were primarily determined by the redeposition of pelagic sediments, and that considerable stratigraphic gaps may occur even in distal basinal settings. The predominant control of local paleotopography on the accumulation rates of biosiliceous sediments can be generalized to all narrow, fault-bounded rift basins.
COBISS.SI-ID: 34472749
In the paper we used carbon and oxygen isotope stratigraphy, in conjunction with detailed larger benthic foraminiferal biostratigraphy, to establish a high-resolution paleoclimatic record in shallow marine carbonate succession across the Paleocene-Eocene boundary. High seawater temperatures apparently were the main factor stimulating rapid diversification of benthic foraminifers at the beginning of the Eocene. These new data help elucidate the effects of global warming and associated feedbacks in shallow-water ecosystems and could serve for comparisons with other global warming events in the past and also as an assessment analog for future changes.
COBISS.SI-ID: 34095661