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(Article of periodic en Anglais - 2012)

Document title

Benthic foraminifers and gastropods from the Gratteri Formation cropping out near Isnello (Madonie Mts., Sicily)

Authors(s) and Affiliation(s)

BENEDETTI A. ; D'AMICO C. ;

Abstract

Nine samples were collected from a 3 m thick section of the Gratteri Formation cropping out at Casa Asciutto, near Isnello (Madonie Mts.) consisting of yellow silty marls alternating to bioclastic marly and quartzy sandstones, rich in displaced larger foraminifers,deep water agglutinated foraminifers (DWAF) and bathyal hyaline foraminifers. Upsection the specific diversity tends to decrease, whereas the quartz supply increases and assemblages become exclusively constituted by agglutinated DWAF with predominant tubular suspension feeding taxa. In three samples few, badly preserved and displaced gastropods were recognized. The Gratteri Formation deposited during the late Rupelian in a basin periodically affected by gravitative and turbiditic flows, which carried basinward coeval shallow-water larger foraminifers and gastropods. The dissolution of the most calcareous taxa is imputed to the fluctuations and local rise of the calcite compensation depth (CCD) or, more likely, to reducing conditions in bottom sediments. - (NF)

Source

Article of periodic

published at : Italian Journal of Geosciences / ISSN 2038-1719

Editor : Società Geologica Italiana, Roma - ITALIE (2009)

Millesime : 2012, vol. 131, no1 [pp. 66-76]

Bibliographic references : 96 ref.

Collation : 9 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 5205

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.3301/IJG.2011.23

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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