Foraminiferal assemblages of the Bric della Muda laminites (Nizza Monferrato, Piedmont): Proxies of cyclic paleoenvironmental changes in the Lower Messinian of North-western Italy. (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Foraminiferal assemblages of the Bric della Muda laminites (Nizza Monferrato, Piedmont): Proxies of cyclic paleoenvironmental changes in the Lower Messinian of North-western Italy. (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Alternative label

• Violanti D.; Gallo L.M.; Rizzi A. (2007)
  Foraminiferal assemblages of the Bric della Muda laminites (Nizza Monferrato, Piedmont): Proxies of cyclic paleoenvironmental changes in the Lower Messinian of North-western Italy.
  in GEOBIOS; Elsevier, Amsterdam (Paesi Bassi)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Violanti D.; Gallo L.M.; Rizzi A. (literal)

Pagina inizio

• 281 (literal)

Pagina fine

• 290 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 40 (literal)

Rivista

• GEOBIOS (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 10 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto Geoscienze e Georisorse (literal)

Titolo

• Foraminiferal assemblages of the Bric della Muda laminites (Nizza Monferrato, Piedmont): Proxies of cyclic paleoenvironmental changes in the Lower Messinian of North-western Italy. (literal)

Abstract

• Foraminiferal assemblages in laminites cropping out at the Bric (i.e. Hill) della Muda (Nizza Monferrato, Piedmont, Northwestern Italy) document deep marine conditions during the early Messinian, spanning a time-interval approximating, or slightly wider than the stratigraphic range of Globorotalia nicolae (6.82-6.72 Ma). Fluctuations in abundance of planktonic warm-water oligotrophic taxa and cold-water eutrophic species show a cyclical pattern, very comparable to variations measured in cyclically-bedded formations of the pre-evaporitic Messinian in the Mediterranean area. A subtropical climate with cyclic warmer and cooler episodes, characterized by surface water stratification and vertical mixing in the water column, respectively, is also documented. A depositional depth close to or larger than 1000 m is inferred on the basis of planktonic assemblages yielding also the deep planktonic Hastigerinella digitata and of very high P/(P + B) ratios. Anoxic or strongly dysoxic bottom conditions are indicated by the absence or rareness of benthic foraminifers, which are represented by taxa tolerant of low-oxygen or high organic content (Bolivina pseudoplicata, Chilostomella oolina, Globobulimina affinis). A slight decrease in P/(P + B) ratios, and the presence of rare shallow-water forms in the uppermost layers suggest a mild dysoxia and a probable shallowing, when compared with coeval events in Northern Apennines and Southern Greece sections. (literal)

Editore

• Elsevier (Editore)

Prodotto di

• Geodinamica ed evoluzione della litosfera continentale (TA.P04.015.003) (Modulo)
• Istituto di geoscienze e georisorse (IGG) (Istituto)

Autore CNR

• DONATA VIOLANTI (Persona)

Insieme di parole chiave

• Keywords of "Foraminiferal assemblages of the Bric della Muda laminites (Nizza Monferrato, Piedmont): Proxies of cyclic paleoenvironmental changes in the Lower Messinian of North-western Italy." (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di geoscienze e georisorse (IGG) (Istituto)
• Geodinamica ed evoluzione della litosfera continentale (TA.P04.015.003) (Modulo)

Autore CNR di

• DONATA VIOLANTI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• GEOBIOS (Rivista)

Editore di

• Elsevier (Editore)

Insieme di parole chiave di

• Keywords of "Foraminiferal assemblages of the Bric della Muda laminites (Nizza Monferrato, Piedmont): Proxies of cyclic paleoenvironmental changes in the Lower Messinian of North-western Italy." (Insieme di parole chiave)