Su alcune caratteristiche delle argille plioceniche della valle dell'Era (Toscana) in rapporto alla genesi di calanchi e biancane

Some features of pliocenic clays of the Era basin (Tuscany) in relation to «calanchi» and «biancane» genesis

Authors

  • Sergio Pinna Istituto di Costruzioni Stradali e Trasporti (Facoltà di Ingegneria) dell'Università di Pisa, Pisa, Italy Author
  • Sebastiano Vittorino Centro di Studi per la Geologia Strutturale e Dinamica dell'Appennino. C.N.R., Pisa, Italy Author

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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Published

1989-12-31

Issue

Section

Research and review papers

How to Cite

Pinna, S., & Vittorino, S. (1989). Su alcune caratteristiche delle argille plioceniche della valle dell’Era (Toscana) in rapporto alla genesi di calanchi e biancane: Some features of pliocenic clays of the Era basin (Tuscany) in relation to «calanchi» and «biancane» genesis. Geografia Fisica E Dinamica Quaternaria, 12(2), 131-137. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/812

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