Etude des Déformations et Inclinaisons du Sous-sol: Développements Instrumentaux et Applications dans la Région Sismique d’Arette,France |
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| Authors: | Philippe Lesage Pierre Antoine Blum Marcel Vadell Jean Francois Fels |
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| Institution: | 1. Centro de Investigación Cientifica y de Educación Superior de Ensenada, Méxique, Division de Ciencias de la Tierra, P.O. Box 4843, 92073, San Ysidro, CA, USA
2. Laboratoire d’Etude Géophysique des Structures Profondes, associé au CNRS N° 195, Université Pierre et Marie Curie, Institut de Physique du Globe de Paris, 4, place Jussieu, Tour 14, 75230, Paris Cedex 05, France
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| Abstract: | We present a modified version of a tilt and strain meter conceived to have great sensibility and good stability. These instruments were deployed in a cave at the seismic Pyrenean region of Arette (France). We set in evidence several types of phenomena, of which deformations brought about by water recharge filling up fissures on the massif are of importance. Owing to the redundance in the data, the study of the co-seismic deformations allows one to separate instrumental displacements and local readjustments from regional motions. |
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