Abstract
This study focuses on the sedimentological, stratigraphical and ichnological integrated analysis of Oligo-Miocene flysch and hemipelagic deposits outcropping in the central part of Northern Apennines (Tuscany and Emilia Romagna regions, Italy). The aim of this paper is to characterise poorly known aspects of siliciclastic deposits (ichnology) in the Pratomagno–Verghereto transect, in order to perform a paleoenvironmental reconstruction and to better understand and interpret the evolution of the foredeep during the Oligo-Miocene.
For our purposes, over 20 sections have been studied along a transect that goes from the Tuscany (Pratomagno) to the Romagna area (Verghereto). In this region, several turbiditic formations crop out and they belong to the Cervarola–Falterona outer Tuscany Domain (Varicolori, Arenarie di Monte Falterona and Complesso Caotico, Arenarie di Monte Cervarola and Vicchio Formations) and to the Umbrian–Romagna Domain (Marnoso-arenacea e Marne di Verghereto Formations).
A sedimentological characterisation of the Oligo-Miocene deposits outcropping in the studied area has been carried out in order to better define the stratigraphic and tectonic relationship of each stratigraphic unit. Four different groups of turbidites were distinguished on the base of grain size: a) very
Caratteristiche sedimentologico-ichnologiche delle unità silicoclastiche oligo-mioceniche nel transetto Pratomagno–Verghereto,
Appennino Settentrionale
Marco Milighetti
1, Paolo Monaco
2e Alessio Checconi
21
Via Santa Lucia 110, 52043 Castiglion Fiorentino (Arezzo)
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