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On the temporal and spatial variance in displacement velocity of a slide in varved clays in the French ALPS
Author(s) -
Van Genuchten Pieter M. B.
Publication year - 1989
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290140612
Subject(s) - varve , geology , geodetic datum , geodesy , displacement (psychology) , geomorphology , physical geography , geography , psychology , sediment , psychotherapist
The distribution of slide rate in time and space in an active landslide in varved clays in the French Alps are presented. Convergent flow of the sliding mass and increase of slide rate downslope appeared from geodetic measurements. By means of a mass balance it is shown that the convergence is compensated by the increased slide rate hence the depth of the sliding mass is constant throughout the slide. In the eight years of recording, variations in the precipitation totals in the period accumulated masses forms an additional explanation.