Geomorphological and dendrochronological analyses of a complex landslide in the Southern Apennines
Articolo
Data di Pubblicazione:
2008
Citazione:
Geomorphological and dendrochronological analyses of a complex landslide in the Southern Apennines / D. Guida, M. Pelfini, M. Santilli. - In: GEOGRAFISKA ANNALER. SERIES A, PHYSICAL GEOGRAPHY. - ISSN 0435-3676. - 90:3(2008), pp. 211-226.
Abstract:
Complex landslides, capable of reactivation,
are typical slope movements in high relief
areas. Due to their distribution, size and kinematics,
these landforms represent a major hazard, posing a
high risk to populations, settlements and infrastructures.
This paper integrates geomorphological
analyses, instrumental measurements and dendrochronological
approaches in assessing a large, reactivated
landslide system on the southern piedmont
of Monte Sirino (southern Italy). The landslide
system is associated with weak geological structures,
earthquake activity, and rapid recent incision
of the mid-Pleistocene Noce lake deposits. Potential
reactivation triggers include a higher regional annual
rainfall, one of the highest in southern Italy, and
more frequent heavy snowfalls in recent decades.
Reactivation of the Sirino landslide system has important
implications for the motorway connecting
Salerno and Reggio Calabria, which crosses it. The
results of our study show that the slide is reactivated
with an almost decadal frequency and that major
reactivations are correlated to prolonged snowfall,
which occurs with increasing frequency in the
southern Apennines. The last observation suggests
the need for similar studies on the behaviour of other
landslide systems in the southern Apennines,
performing integrated approaches such as geotechnical
and dendrogeomorphological analysis.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
D. Guida, M. Pelfini, M. Santilli
Link alla scheda completa: