6533b831fe1ef96bd1299b04

RESEARCH PRODUCT

Biostratigraphy, Chronostratigraphy and Paleonvironmental Reconstruction of the Palermo Historical Centre Quaternary succession

Rodolfo SprovieriMauro AgateMaria Stella GiammarinaroFederico CalviAlessandro IncarbonaSergio Bonomo3Enrico Di StefanoAttilio PriullaAntonio Contino

subject

010506 paleontologycalcareous nannofossilsFlyschPleistocenebiologyGeologyBiostratigraphy010502 geochemistry & geophysicsbiology.organism_classification01 natural sciencesForaminiferaSedimentary depositional environmentPaleontologyStage (stratigraphy)Quaternary.General Earth and Planetary SciencesbiostratigraphyChronostratigraphyQuaternaryPalermo historical centre calcareous nannofossils biostratigraphy Quaternary.Palermo historical centreGeology0105 earth and related environmental sciences

description

Marine deposits from the Palermo Plain were historically relevant for the Quaternary Period definition. Here we show lithostratigraphic, biostratigraphic and chronostratigraphic data collected on three boreholes in the Palermo historical centre that recovered 36.8, 42.0 and 52.0 metres of sediments overlaying the Numidian Flysch. Marine sedimentary sequences span from the Calabrian Stage (calcareous nannofossil Zone MNN 19d) to the Middle Pleistocene (dominance of medium-sized gephyrocapsids within the MNN 19f Zone) and also include a short Holocene depositional event. Calcareous nannofossil, benthic and planktonic foraminifera assemblages point to a shallow coastal environment, possibly < 50 m deep. This study highlights the need of a modern and reliable stratigraphic interpretation of lithotypes, to identify stratigraphic gaps and to draw deep geological structures in an area extremely vulnerable to seismic and hydrogeological hazard.

10.3301/ijg.2015.45https://publications.cnr.it/doc/346784