Evoluzione paleogeografica del territorio umbro alia confluenza Tevere-Nestore (bacini di «S. Fortunato e di Riparvella»)
Paleogeographic evolution of the Umbrian territory at the confluence of The Nestore-Tevere rivers (S. Fortunato basin and Ripalvella basin)
Keywords:
Bad lands, Clay sediments, Grain size distribution, Plasticity, Era Valley (Tuscany)Abstract
Calanchi and Biancane are typical landforms of pliocenic clay sediments in several italian basins; their origin is still a much debated question. In this paper we have turned our attention to some geotechnical features (grain size distribution and Atterberg limits) of the Era valley clays on which such erosional forms are developed. Biancane have shown higher clay (< 2 µm) contents and higher values of liquid limit (WL) and plastic limit (Wp) than calanchi.
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Copyright (c) 2024 Sergio Pinna, Sebastiano Vittorino (Author)
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