A debris flow calendar derived from sediments of lake Lago di Braies (N. Italy)

Auteurs :
IRMLER, R.
DAUT, G.
MÄUSBACHER, R.

Description :
In this study lake sediments were used for developing a high resolution calendar of past debris flow events. The fine grained material of debris flows is flushed into the lake. This material forms characteristic layers in the lake sediments, which are different from the typical annual lamination. By analysing thin sections of sediment, debris flow events of the last 2250 years were reconstructed with an annual resolution. Since debris flow frequency varies strongly, periods with high and low frequencies can be distinguished.


Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 2006, vol. 77, n°. 1-2, p. 69-78, nombre de pages : 10, Collation : Illustration, Références bibliographiques : 27 ref.

Date :
2006

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier