The paleolandslide at Peru (Castelsardo - north Sardinia, Italy): definition, lithostratigraphy and relationships to other continental quaternary deposits

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DOI:

https://doi.org/10.4408/IJEGE.2010-01.O-08

Keywords:

paleolandslide, Upper Pleistocene, complex landslides, phyllosi- licate-altered tuffites, North Sardinia

Abstract

Northern Sardinia (Italy) is characterized by a series of paleolandslides in different lithostratigraphic contexts of the Miocene succession. These large landslides have never been adequately studied and mapped and their kinematic processes are still insufficiently known. This study contains a description of the deposits of a paleolandslide in the Peru area (Castelsardo, North Sardinia). The surveying and mapping of its lithological and morphological characteristics were performed using in-the-field surveys, photointerpretation and the results of geognostic wells. A kinematic scheme explaining the origin of the deposits is then proposed. The stratigraphic relations between the landslide deposits and the eolian deposits of the Upper Pleistocene, visible along the coastline on the cliffs in the Peru area, allow us to date the phenomenon of instability and provide a new insight into the geology of the Quaternary in North Sardinia.

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Published

2010-06-30

How to Cite

Tilocca, G., Forci, A., & Lai, M. R. (2010). The paleolandslide at Peru (Castelsardo - north Sardinia, Italy): definition, lithostratigraphy and relationships to other continental quaternary deposits. Italian Journal of Engineering Geology and Environment, (1), 107–117. https://doi.org/10.4408/IJEGE.2010-01.O-08

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