Biostratigraphic remarks on the Caltavuturo Formation (Eocene-Oligocene) cropping out at Portella Colla (Madonie Mts., Sicily)
An outcrop of the Caltavuturo Formation (Eocene-Oligocene) in the Madonie Mts. (Northern Sicily) has been micropaleontologically investigated. Two stratigraphic sections were sampled and studied in rock thin sections. The formation consists of marly clays and several 2-30 cm thick breccia layers, ri...
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ftunivromairis:oai:iris.uniroma1.it:11573/387132 2024-04-14T08:18:31+00:00 Biostratigraphic remarks on the Caltavuturo Formation (Eocene-Oligocene) cropping out at Portella Colla (Madonie Mts., Sicily) BENEDETTI, Andrea Benedetti, Andrea 2010 STAMPA http://hdl.handle.net/11573/387132 http://www.girmm.com/articoli/Benedetti_PortellaColla_2010.pdf eng eng volume:29 issue:1 firstpage:197 lastpage:216 numberofpages:20 journal:REVUE DE PALÉOBIOLOGIE http://hdl.handle.net/11573/387132 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-77958465810 http://www.girmm.com/articoli/Benedetti_PortellaColla_2010.pdf info:eu-repo/semantics/article 2010 ftunivromairis 2024-03-21T18:59:08Z An outcrop of the Caltavuturo Formation (Eocene-Oligocene) in the Madonie Mts. (Northern Sicily) has been micropaleontologically investigated. Two stratigraphic sections were sampled and studied in rock thin sections. The formation consists of marly clays and several 2-30 cm thick breccia layers, rich in larger foraminifers, and is affected by prominent silicification and bioturbation. The clayey layers are dominated by deep-water agglutinated foraminifera (DWAF) in isolated forms, with rare epibathyal and bathyal hyaline taxa, which disappears at the top of the succession. The collected samples are barren of planktonic foraminifera and calcareous nannoplankton. Selected larger benthic foraminifers species in the displaced layer register a vertical variation and were analysed to have a biostratigraphical control according to shallow benthic zones (SBZ). Heterostegina reticulata italiaca, Borelis vonderschmitti, Halkyardia minima, Dyscocyclina dispansa dispansa, Orbitoclypeus varians and Nummulites ex. gr. incrassatus mark the upper Eocene assemblages. Nummulites vascus dominates the Early Rupelian assemblages in association with N. fichteli, Halkyardia maxima, Operculina complanata and Heterostegina sp., whereas the FO of Nephrolepidina praemarginata marks the Late Rupelian. Imbrication of resedimented larger foraminiferal tests indicates a N-S paleodirection of the flows. Article in Journal/Newspaper Planktonic foraminifera Sapienza Università di Roma: CINECA IRIS |
institution |
Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
description |
An outcrop of the Caltavuturo Formation (Eocene-Oligocene) in the Madonie Mts. (Northern Sicily) has been micropaleontologically investigated. Two stratigraphic sections were sampled and studied in rock thin sections. The formation consists of marly clays and several 2-30 cm thick breccia layers, rich in larger foraminifers, and is affected by prominent silicification and bioturbation. The clayey layers are dominated by deep-water agglutinated foraminifera (DWAF) in isolated forms, with rare epibathyal and bathyal hyaline taxa, which disappears at the top of the succession. The collected samples are barren of planktonic foraminifera and calcareous nannoplankton. Selected larger benthic foraminifers species in the displaced layer register a vertical variation and were analysed to have a biostratigraphical control according to shallow benthic zones (SBZ). Heterostegina reticulata italiaca, Borelis vonderschmitti, Halkyardia minima, Dyscocyclina dispansa dispansa, Orbitoclypeus varians and Nummulites ex. gr. incrassatus mark the upper Eocene assemblages. Nummulites vascus dominates the Early Rupelian assemblages in association with N. fichteli, Halkyardia maxima, Operculina complanata and Heterostegina sp., whereas the FO of Nephrolepidina praemarginata marks the Late Rupelian. Imbrication of resedimented larger foraminiferal tests indicates a N-S paleodirection of the flows. |
author2 |
Benedetti, Andrea |
format |
Article in Journal/Newspaper |
author |
BENEDETTI, Andrea |
spellingShingle |
BENEDETTI, Andrea Biostratigraphic remarks on the Caltavuturo Formation (Eocene-Oligocene) cropping out at Portella Colla (Madonie Mts., Sicily) |
author_facet |
BENEDETTI, Andrea |
author_sort |
BENEDETTI, Andrea |
title |
Biostratigraphic remarks on the Caltavuturo Formation (Eocene-Oligocene) cropping out at Portella Colla (Madonie Mts., Sicily) |
title_short |
Biostratigraphic remarks on the Caltavuturo Formation (Eocene-Oligocene) cropping out at Portella Colla (Madonie Mts., Sicily) |
title_full |
Biostratigraphic remarks on the Caltavuturo Formation (Eocene-Oligocene) cropping out at Portella Colla (Madonie Mts., Sicily) |
title_fullStr |
Biostratigraphic remarks on the Caltavuturo Formation (Eocene-Oligocene) cropping out at Portella Colla (Madonie Mts., Sicily) |
title_full_unstemmed |
Biostratigraphic remarks on the Caltavuturo Formation (Eocene-Oligocene) cropping out at Portella Colla (Madonie Mts., Sicily) |
title_sort |
biostratigraphic remarks on the caltavuturo formation (eocene-oligocene) cropping out at portella colla (madonie mts., sicily) |
publishDate |
2010 |
url |
http://hdl.handle.net/11573/387132 http://www.girmm.com/articoli/Benedetti_PortellaColla_2010.pdf |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
volume:29 issue:1 firstpage:197 lastpage:216 numberofpages:20 journal:REVUE DE PALÉOBIOLOGIE http://hdl.handle.net/11573/387132 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-77958465810 http://www.girmm.com/articoli/Benedetti_PortellaColla_2010.pdf |
_version_ |
1796318019811540992 |