This research is a part of a broader paleopedological investigation aimed at characterising and verifying the extent of the permafrost zone during the Last Glacial Maximum (LGM) in the Ligurian Alps. The paper presents the results of a micromorphological study of a palaeosol located at an elevation of 650 m a.s.l., near a blockstream deposit on Beigua Massif in northwestern Italy. We examined a profile exposing sandy sediments characterised by macroscopic structures that are clearly cryogenic in origin. These features were interpreted with their micromorphological characteristics, and we found that during the LGM, this unglaciated area of the Ligurian Alps was characterised by a periglacial environment with discontinuous permafrost even at low elevations.
Frost activity and ice segregation in a palaeosol of the Ligurian Alps (Beigua Massif, Italy) : evidence of past permafrost? / I. Rellini, L. Trombino, P.M. Rossi, M. Firpo. - In: GEOGRAFIA FISICA E DINAMICA QUATERNARIA. - ISSN 0391-9838. - 37:1(2014), pp. 29-42.
|Titolo:||Frost activity and ice segregation in a palaeosol of the Ligurian Alps (Beigua Massif, Italy) : evidence of past permafrost?|
|Parole Chiave:||Beigua Massif (Liguria; Cryogenic structures; Ice lensing; Italy); Last Glacial Maximum; Micromorphology; Periglacial processes; Permafrost|
|Settore Scientifico Disciplinare:||Settore GEO/04 - Geografia Fisica e Geomorfologia|
|Data di pubblicazione:||2014|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.4461/GFDQ.2014.37.4|
|Appare nelle tipologie:||01 - Articolo su periodico|