Late Maastrichtian to Danian dinoflagellate cyst and calcareous nannofossil biostratigraphy was analyzed at the Sur Río Chico borehole, Austral Basin, Argentina. Two stratigraphical intervals from 965 1003 m below ground surface of drilled section were defined. The co-occurrence Manumiella bertodano, M. seelandica conorata in 990–1000 1000–1003 mbgs interval, associated with top Neprolithus fre...

Paleoenvironmental reconstruction of the Mediterranean Basin at end Messinian Salinity Crisis is contentious. One section that records this final phase (Stage 3) Pollenzo Section in Piedmont (NW Italy). Here, we present new stratigraphic, sedimentological, petrographic, micropaleontological (ostracods, calcareous nannofossils, foraminifera, dinoflagellates) and geochemical (87Sr/86Sr ratios) da...

In the North Croatian Basin which is located in southwestern part of Pannonian System, Miocene tuff deposits have been observed at several localities area Banovina, Medvednica Mt. and Slavonia. Here we present new 40Ar/39Ar age results obtained from volcanic glass Laz (15.42 ± 0.15 Ma) intercalated with lacustrine freshwater/brackish deposits, Jovac (15.10 0.06 freshwater ?u?erje (14.81 0.08 Nj...

Calcareous nannofossil biostratigraphy reveals a continuous depositional record through the Upper Cretaceous‒Paleocene succession in Zagros Basin; southwest Iran (southeastern part of Neo-Tethys), especially Cretaceous‒Paleogene and Danian‒Selandian boundaries. The upper Gurpi Formation lower Pabdeh were investigated. assemblages from these formations are characterized by abundant, diverse mode...

Abstract Chalk has been used since Antiquity for various purposes, and Gothic preparatory layers of painted cultural heritage objects. Several materials are called chalk in Cultural Heritage, but this work especially focuses on composed calcareous nannofossils (up to 98%). These fossil remains photoautotrophic algae generally smaller than 30 μm. They mainly visible as platelets shapes under a c...