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27 results for “Calcareous nannofossil”
Fig. 2 in Uppermost Cretaceous Calcareous Nannofossils In Red Pelagic Sediments (Romanian Carpathians)
Fig. 2 Lithology and biostratigraphy of the investigated upper Cretaceous sediments in the Pucheni section. Legend: 1 - red marlstones and claystones; 2 - white marlstones and claystones; 3 - grey marlstones and claystones; 4 - sandstones; 5 - FO (first occurrence of a nannofossil); 6 – LO (last occurrence of a nannofossil). CC nannofossil zones of Sissingh (1977), emended by Perch-Nielsen (1985); UC zones of Burnett (1998).
Fig. 7 in Uppermost Cretaceous Calcareous Nannofossils In Red Pelagic Sediments (Romanian Carpathians)
Fig. 7 Litho- and biostratigraphic correlation of the uppermost Cretaceous variegated sediments exposed in the Romanian Carpathians belt. For lithological legend see Fig. 2; the age assignment in the section Izlaz after Cetean et al. (2011), section Pucheni presented in this paper and sections Pietroşița, Talea and Gura Beliei from Melinte & Jipa (2005).
Fig. 6 in Uppermost Cretaceous Calcareous Nannofossils In Red Pelagic Sediments (Romanian Carpathians)
Fig. 6 Upper Cretaceous calcareous nannofossils from the Pucheni section. All microphotographs at LM (light microscope), crossed-nicols; scale bar in microns. a Micula decussata Vekshina, 1959; Santonian, Plaiu Formation; b Micula concava (Stradner in Martini & Stradner, 1960) Verbeek, 1976; Santonian, Plaiu Formation; c Micula murus (Martini, 1961) Bukry, 1973; Maastrichtian, Gura Beliei Formation; d, e Micula prinsii Perch-Nielsen, 1979; upper Maastrichtian, Pucheni Formation; f Lithraphidites quadratus Bramlette & Martini, 1964; upper Maastrichtian, Gura Beliei Formation; g Uniplanarius sissinghi (Perch-Nielsen, 1986) Farhan 1987; upper Campanian, Gura Beliei Formation; h Reinhardtites levis Prins & Sissingh in Sissingh, 1977; lower Maastrichtian, Gura Beliei Formation; i Ceratolithoides aculeus (Stradner, 1961) Prins & Sissingh in Sissingh, 1977; upper Campanian, Plaiu Formation; j Micula swastica Stradner & Steinmetz, 1984; upper Maastrichti- an, Pucheni Formation; k Tranolithus orionatus (Reinhardt, 1966a) Reinhardt, 1966b; lower Maastrichtian, Gura Beliei Formation; l Broinsonia parca parca (Stradner, 1963) Bukry, 1969; lower Campanian, Plaiu Formation; m Arkhangelskiella cymbiformis Vekshina, 1959; lower Campanian, Plaiu Formation; n Gartnerago segmentatum (Stover, 1966) Thierstein, 1974; upper Maastrichtian, Pucheni Formation; o Uniplanarius gothicus (Deflandre, 1959) Hattner & Wise, in Wind & Wise 1983; upper Campanian, Gura Beliei Formation; p Eiffellithus eximius (Stover, 1966) Perch-Nielsen, 1968; upper Campanian, Gura Beliei Formation.
Fig. 3 in Biozonation And Correlation Of Two Wells In Niger Delta Using Calcareous Nannofossils
Fig. 3. Microphotographs at LM (light microscope) of the calcareous nannofossils identified in the two studied wells; scale bar 9 microns. a Helicosphaerea sellii Bukry and Bramlette; b Reticulofenestra pseudoumbilicus> 7 microns (Gartner) Gartner; c Calcidiscus tropicus (Kamptner) Gartner; d Discoaster brouweri (Roth and Hay in Hay et al.) Bukry; e Ceratolithus armatus (Muller, 1974); f Sphenolithus abies Deflandre in Deflandre and Fert; g Discoaster berggrenii Bukry; h Ceratolithus cristatus (Young, 1998); i Calcidiscus leptoporus (Murray and Blackman) Loeblich and Tappan; j Pontosphaera multipora (Kamptner ex Deflandre in Deflandre and Fert) Roth, 1970); k Discoaster pentaradiatus Tan; l Coccolithus pelagicus (Wallich) Schiller; m Discoaster hamatus Martini and Bramlette; n Cyclicargolithus floridanus (Tan) Bramlette and Riedel; o Helicosphaera carteri (Wallich) Kamptner; p Sphenolithus moriformis (Brönnimann and Stradner) Bramlette and Wilcoxon; q Pontosphaera discopora Schiller; r Discoaster quinqueramus Gartner; s Reticulofenestra haqii Backman; t Calcidiscus macintyrei (Bukry and Bramlette) Loeblich and Tappan.
Fig. 1 in Uppermost Cretaceous Calcareous Nannofossils In Red Pelagic Sediments (Romanian Carpathians)
Fig. 1 Location of the studied section in the Romanian Carpathian bend region.
Fig. 5 in Biozonation And Correlation Of Two Wells In Niger Delta Using Calcareous Nannofossils
Fig. 5 Calcareous nannofossil stratigraphic chart of MAY-02 well.
Fig. 4 in Biozonation And Correlation Of Two Wells In Niger Delta Using Calcareous Nannofossils
Fig. 4 Calcareous nannofossil stratigraphic chart of MAY-01 well.
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