1,721,069 research outputs found
The palynoforaminifera of the Faraoni Level and Selli Level of the Umbria-Marche sequence
No full textPlanktic and benthic foraminiferal distribution patterns as a response to changes in surface fertility and ocean circulation: a case study from the Late Albian “Amadeus Segment” (Central Italy)
No full textAbstract. A combined geochemical and micropalaeontological study of the late Albian ‘Amadeus Segment’ of the Aptian–Albian organic-rich Scisti a Fucoidi Formation in central Italy shows that planktic foraminiferal assemblages record changes in abundance and composition which are markedly related to CaCO3 and Total Organic Carbon content of the sediments. The distribution pattern of different genera seems to record changes in nutrient supply and surface water temperature. Changes in palaeoceanographic regime are also reflected in abundance, composition and trophic structure of benthic foraminiferal assemblages as a response to variations of oxygen content and organic flux to the sea floor.
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Foraminiferal Biostratigraphy and Palaeoecology of the CIROS-1 Core from McMurdo Sound (Ross Sea, Antarctica).
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Orbitally induced cycles in benthonic foraminiferal morphogroups and trophic structures distribution patterns from the Late Albian "Amadeus Segment" (central Italy).
No full textK-T Boundary extinction: Geologically instantaneous or gradual event? Evidence from deep-sea benthic foraminifera
No full textOrbital Forcing of Early Eocene dissolution events and Carbon Isotope Excursions from the Contessa Road-Bottaccione composite section (Gubbio, central Italy)
No full textTHE EARLIEST INVASION OF NEOGLOBOQUADRINA ATLANTICA (BERGGREN) INTO THE MEDITERRANEAN: PALAEOCLIMATIC AND PALAEOCEANOGRAPHIC IMPLICATIONS
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