نتایج جستجو برای: nannofossils

تعداد نتایج: 185  

Journal: :Geologia Croatica 2021

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...

Journal: :Cretaceous Research 2021

New palynological and calcareous nannofossil records are presented for the Turonian–Coniacian boundary section at Salzgitter-Salder, Germany, candidate Coniacian GSSP. The proposed base of Stage is Bed 46, first appearance datum level Cremnoceramus deformis erectus, which coincident with a δ13C minimum top Navigation carbon isotope event. Palynological assemblages dominated by organic walled di...

Journal: :Review of Palaeobotany and Palynology 2021

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...

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