Minoletti, Fabrice et al. (2001): Mise au point d'un protocole experimental de separation granulometrique d'assemblages de nannofossiles calcaires; applications paleoecologiques et geochimiques A new experimental protocol for granulometric separation of calcareous nannofossil assemblages; paleoecological and geochemical applications

Leg/Site/Hole:
DSDP 8
DSDP 8 74
Identifier:
2001-071968
georefid

Creator:
Minoletti, Fabrice
Universite Pierre et Marie Curie, Departement de Geologie Sedimentaire, Paris, France
author

Gardin, Silvia
ETH-Zentrum, Switzerland
author

Nicot, Elisabeth
author

Renard, Maurice
author

Spezzaferri, Silvia
author

Identification:
Mise au point d'un protocole experimental de separation granulometrique d'assemblages de nannofossiles calcaires; applications paleoecologiques et geochimiques A new experimental protocol for granulometric separation of calcareous nannofossil assemblages; paleoecological and geochemical applications
2001
Bulletin de la Societe Geologique de France
Societe Geologique de France, Paris, France
172
4
437-446
Calcareous nannofossils play an important role in biostratigraphy and paleoecology, though their study is often complicated by their reduced size. The methodology presented herein allows to separate the nannofossil assemblage into granulometrically and taxonomically homogeneous fractions. This method permits :a) the concentration of rare taxa in order to simplify their morphometric study; b) the geochemical analysis (stable isotopes and trace elements) of these fractions. The latter is helpful in many cases, especially when the analysis of major or minor taxa constituent of the assemblage is greatly complicated by the reduced particles dimensions. In this way, it will be possible to bring light to the ecological parameters of these taxa, as calcification temperature and other ecological requirements (salinity, nutrient concentrations).
French
Serial
Coverage:Geographic coordinates:
North:-6.1412
West:-136.0548East: -136.0548
South:-6.1412

Paleobotany; algae; applications; assemblages; biostratigraphy; C-13/C-12; carbon; Cenozoic; Coccolithophoraceae; Cretaceous; Deep Sea Drilling Project; DSDP Site 74; Equatorial Pacific; experimental studies; filtration; geochemistry; grain size; isotope ratios; isotopes; K-T boundary; laboratory studies; Leg 8; lower Paleocene; Mesozoic; microfossils; micropaleontology; morphology; nannofossils; O-18/O-16; oxygen; Pacific Ocean; Paleocene; paleoecology; Paleogene; Plantae; sample preparation; separation; stable isotopes; stratigraphic boundary; techniques; Tertiary; Upper Cretaceous;

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