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all geography including DSDP/ODP Sites and Legs
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Europe
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fossils
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microfossils (3)
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Deep Sea Drilling Project
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Europe
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France
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Invertebrata
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Protista
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sedimentary rocks
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
Pre-Zanclean end of the Messinian Salinity Crisis: new evidence from central Mediterranean reference sections Available to Purchase
Marine karstic infillings: evidence of extreme base level changes and geodynamic consequences (Paleocene of Languedoc, south of France) Available to Purchase
GALEACYSTA ETRUSCA COMPLEX: DINOFLAGELLATE CYST MARKER OF PARATETHYAN INFLUXES TO THE MEDITERRANEAN SEA BEFORE AND AFTER THE PEAK OF THE MESSINIAN SALINITY CRISIS Available to Purchase
A Continuous Cretaceous-Paleocene Red-Bed Section in the Romanian Carpathians Available to Purchase
Abstract: The uppermost Cretaceous marine red beds from the Romanian Carpathian bend area were investigated in detail from the lithostratigraphic and biostratigraphic points of view. Geochemical and mineralogical investigations were performed along the same profile. The investigated sequence spans the Upper Campanian and the whole Maastrichtian stages, including the K-T boundary, as evidenced by the nannofloral mass extinction and the well known carbon isotope excursion. Both qualitative and semiquantitative calcareous nannofossil studies were conducted. The semiquantitative investigations focused on six taxonomic groups, such as Watznaueria barnesae, Micula spp., Boreal nannofossils, Tethyan nannofossils, Braarudosphaera bigelowii, and the calcareous dinoflagellate genus Thoracosphaera. The new data indicate constant δ 13 C values in the Upper Campanian and Lower Maastrichtian red marls of the Gura Beliei Formation. In the Upper Maastrichtian deposits of the Ialomica section, lithological and mineralogical changes, together with several negative δ 13 C and δ 18 O excursions, suggest instability of the ecosystems, fluctuating sea level, and/or detrital input as well as climatic changes during the Late Maastrichtian interval. The age and the lithology of the Gura Beliei red beds are similar to other red beds deposited in the Tethys Realm (i.e., the Nierental Formation of Austrian Northern Calcareous Alps, the Puchov Marl of the Slovakian and Polish Western Carpathians, the Vojvodina region of Serbia, and the Scaglia Rossa of Apennines).