Results 191 to 200 of about 53,108 (242)

Calcareous nannofossils from a Late Cretaceous nearshore setting.

Journal of Nannoplankton Research, 2019
Unexpectedly rich and diverse associations of calcareous nannofossils are reported from Upper Cretaceous sediments of northern Germany. Samples from the Cenomanian–Campanian yielded well-preserved calcareous nannofossils, with an average of 52 to 81 ...
T. Püttmann, J. Mutterlose
semanticscholar   +1 more source

C. -Les Nannofossiles calcaires/ Calcareous nannofossils

Géologie Méditerranéenne, 1979
Muller C., Templeton R.S.M., Desprat R. C. -Les Nannofossiles calcaires/ Calcareous nannofossils. In: Géologie Méditerranéenne. Tome 6, numéro 1, 1979. La mer pélagienne. Etude sédimentologique et écologique du Plateau tunisien et du Golfe de Gabès. pp. 210-220.
Müller, Carla, Templeton, R.S.M., Desprat, R.   +2 more
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Calcareous nannofossils

1996
Abstract This chapter deals with calcareous nannofossils or coccoliths. These range in size from 1-100 µ,. Preparation of samples for calcareous nannofossil study generally consists of pulverising the containing sediment in distilled water using a pestle and mortar, strewing some of the suspended mixture onto a slide using a pipette and ...
openaire   +1 more source

Provincialism among Mid-Eocene Calcareous Nannofossils

Micropaleontology, 1972
Pentaliths, one new genus, six new species, good stratigraphic markers and indicators of hemipelagic environment, Lisbon Formation ...
Laurel Bybell, Stefan Gartner
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Revised taxonomy and stratigraphy of Middle Miocene calcareous nannofossils of the Paratethys

Micropaleontology, 2012
The taxonomy of Paratethyan Middle Miocene calcareous nannofossils is reviewed and revised. Two new species, Syracosphaera croatica and Syracosphaera horvati, are proposed. Comparative study of coeval Neogene nannofossils from NHM and ODP (Ocean Drilling
I. Galović, J. Young
semanticscholar   +1 more source

Molecular fossils and calcareous nannofossils reveal recurrent phytoplanktonic events in the early Toarcian

Global and Planetary Change, 2022
W. Ruebsam, E. Mattioli, L. Schwark
semanticscholar   +1 more source

Middle Miocene Carbonate Crash in the Niger Delta: Evidence from Calcareous Nannofossils.

Journal of Nannoplankton Research, 2012
Analysis of the Serravallian calcareous nannofossils from eight Niger Delta deep offshore wells shows, for the first time, evidence of the Middle Miocene carbonate crash from the Gulf of Guinea.
L. S. Fadiya, M. B. Salami
semanticscholar   +1 more source

Calcareous Nannofossil Biostratigraphy

1998
List of Contributors. Preface. Technical note and abbreviations. 1. Introduction p P.R. Bown, J.R. Young. 2. Techniques P.R. Bown, J.R. Young. 3. Triassic P.R. Bown. 4. Jurassic P.R. Bown, M.K.E. Cooper. 5. Lower Cretaceous P.R. Bown, D.C. Rutledge, J.A. Crux, L.T. Gallagher. 6. Upper Cretaceous J.A. Burnett. 7. Palaeogene O. Varol. 8.
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Extraction Techniques for Calcareous Nannofossils

2001
This group comprises a heterogeneous collection of organisms, or their disaggregated parts ranging up to 201.tm in size. The most common examples encountered in residues are coccoliths; the basic elements of chrysomonad flagellates. Coccoliths are button shaped rings arranged in a complex manner forming hollow spheres (coccolithospheres).
openaire   +1 more source

Volume calculation of Paleocene calcareous nannofossils

2008
During the past decades, volume calculation of extant calcareous nannoplankton has been performed in order to convert coccolith fluxes data into carbonate export productivity. The most useful and relative recent method to estimate the volume of coccoliths is described by Young & Ziveri (2000).
DE BERNARDI B, AGNINI, CLAUDIA
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