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Nannofossils: the smoking gun for the Canarian hotspot
Geology Today, 2015The origin of volcanism in the Canary Islands has been a matter of controversy for several decades. Discussions have hinged on whether the Canaries owe their origin to seafloor fractures associated with the Atlas Mountain range or to an underlying plume or hotspot of superheated mantle material.
Troll, Valentin R. +9 more
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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 ...
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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 ...
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Nannofossils and biostratigraphy: An overview
Earth-Science Reviews, 1977Abstract Intensive biostratigraphic studies of calcareous nannofossils have been carried out for only about a decade, even though nannofossils have been known for over a century. Although coccoliths have been reported from various Paleozoic deposits, datable assemblages are known only from Liassic (early Jurassic) and younger strata.
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Calcareous Nannofossil Biostratigraphy
1998List 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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Oligocene Calcareous Nannofossil Provinces
1974Abstract Investigations of modern calcareous nannoplankton and their fossil record have shown that the distribution of coccoliths in marine sediments is influenced by latitudinal provinciality, neritic or oceanic habitat selection, selective solution, and diagenesis.
Thomas R. Worsley, Maurice L. Jorgens
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Volume calculation of Paleocene calcareous nannofossils
2008During 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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Extraction Techniques for Calcareous Nannofossils
2001This 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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