Journal article

New Chronological Constraints from Hypogean Deposits for Late Pliocene to Recent Morphotectonic History of the Alpi Apuane (NW Tuscany, Italy)

Ilaria Isola, Francesco Mazzarini, Giancarlo Molli, Leonardo Piccini, Elena Zanella, Giovanni Zanchetta, Russell Drysdale, John Hellstrom, Jon Woodhead, Adriano Roncioni, Flavio Milazzo, Diego Pieruccioni, Eleonora Regattieri

GEOSCIENCES | MDPI | Published : 2021

Abstract

A sedimentary sequence of fluvial deposits preserved in the Corchia Cave (Alpi Apuane) provides new chronological constraints for the evolution of the cave system and the timing and rate of uplift of this sector of the Alpi Apuane since the late Pliocene. Supported by magnetostratigraphic analysis performed on fine-grained fluvial deposits, and by radiometric dating of speleothems, we suggest that the deposition of fluvial sediments occurred between ~1.6–1.2 Ma. This implies that the host volume of rock was already located close to the local base level, adding key information about the recent tectonic evolution of the Alpi Apuane. A few before ~1 Ma, an erosive phase occurred due to the base..

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Grants

Awarded by Australian Research Grants


Funding Acknowledgements

The speleothem research performed in this study was funded by the Australian Research Grants DP110102185 (to RND, JDW, and GZ) and DP0664621 (to JDW).