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Publications (13)
Detailed fieldwork, analyses including SEM and EBSD investigations, and dynamic inversion method are used to describe and propose a conceptual model for the formation of compactive faults related to burial in micritic lacustrine-palustrine limestones (Eocene, Pyrenean foreland basin, South of France). These faults are characterized by sinuous shape...
L’étude des failles affectant la croûte supérieure suscite un intérêt particulier pour la modélisation de leur impact sur l’écoulement des fluides et le comportement mécanique de la croûte terrestre. Les zones d’endommagements de failles sont d’importantes structures aux multiples implications pour les problématiques de gestions des ressources et d...
Fault damage zones strongly influence fluid flow and seismogenic behavior of faults and are thought to scale linearly with fault displacement until reaching a threshold thickness. Using analog modeling with different frictional layer thicknesses, we investigate damage zone dynamic evolution during normal fault growth. We show that experimental dama...
The Têt fault is a crustal scale major fault in the eastern Pyrenees that displays about 30 hot springs along its surface trace with temperatures between 29°C and 73°C. The regional process of fluid circulation at depth has previously been highlighted by thermal numerical modelling supported by hydrochemical analyses and tectonic study. Numerical m...
Abstract available on : https://meetingorganizer.copernicus.org/EGU2020/EGU2020-8850.html
(U‐Th)/He ages on apatite obtained in the vicinity of the Têt fault hydrothermal system show a large variability. In the inner damage zone adjacent to the fault core, where fluid flows are concentrated, AHe ages display a large scatter (3 to 41 Ma) and apatite ageing. Samples from the outer damage zone show young ages with less dispersion (0.9 to 2...
New insights from field studies.
Deformed rock volumes in fault zones are usually classified as two distinct zones, the Core Zone (CZ) and the Damage Zone (DZ). Theses CZ and DZ may have significant and different impacts on fluid flow in the crust, mainly because they constitute heterogeneities of permeability. In this project we caracterise the fault DZ in carbonate rocks for sev...
