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Enregistrement des mouvements d'un versant par les spéléothèmes de la grotte du chemin du Castellaras (Le Tignet, Alpes-Maritimes, France)

1995; Volume: 26; Issue: 1 Linguagem: Inglês

10.3406/karst.1995.1127

2546-9002

Éric Gilli, Claude Mangan, P DELANGE, P. Larre, Jacques Évin,

Geology and Paleoclimatology Research

Recordings of the slope movements by speleothems (Le Tignet, Alpes-Maritimes, France). The study of speleothems in a sub-cutaneous cave developed between a scree and its bedrock, shows the slope movements. All the speleothem couples (stalactite facing a stalagmite) are displaced. Among the speleothems, a 50 cm long thin stalactite (soda-straw type) has recorded the movements that have affected the slope. Every slope movement is shown in a speleothem axis variation. Radiocarbon datings help define growth speed and make clear the movement history over a 30,000 year period. This analysis confirms the possibility of using speleothem as verticality gauges to define an area stability.