Results 131 to 140 of about 421 (164)

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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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).
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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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Key species of New Zealand calcareous nannofossils

New Zealand Journal of Geology and Geophysics, 1973
Abstract A genus, Hornibrookina, and three species, Conococcolithus panis, Hornibrookina teuriensis and Reticulofenestra hampdenensis, are described as new from the New Zealand Paleogene; an existing genus, Reticulofenestra, is redefined. Several technical terms are introduced and a new tentative suprageneric classification of the Cenozoic calcareous ...
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Calcareous Nannofossil Studies--State of Art: ABSTRACT

AAPG Bulletin, 1973
Nannofossils commonly occur in astronomically large numbers in fine-grained marine deposits. This fact, coupled with the rapid evolution that characterizes the group and the succession of distinctive assemblages, makes them extremely useful for dating Mesozoic and Cenozoic marine strata.
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Calcareous nannofossil biostratigraphy of the California margin

2000
Selected calcareous nannofossils were investigated by means of quantitative and semiquantitative methods in middle Miocene to Pleistocene sediments from the California margin (Pacific Ocean) recovered during Ocean Drilling Program Leg 167. The goal of the work was to provide detailed dating and correlations of the successions recovered that span a wide
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Calcareous Nannofossil Biostratigraphy

2021
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Higher classification of calcareous nannofossils.

Journal of Nannoplankton Research, 1997
J. R. Young, P. R. Bown
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OLIGOCENE CALCAREOUS NANNOFOSSIL PROVINCES

1974
THOMAS R. WORSLEY, MAURICE L. JORGENS
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