Fluid history related to the Alpine compression at the margin of the south-Pyrenean Foreland basin: the El Guix anticline

Incidence and Importance of Tectonics and Natural Fluid Migration on Reservoir Evolution in Foreland Fold-And-Thrust Belts

“…However, basin-scale modeling is also required to get a more regional understanding of fluid migration, and to know both at what time tectonic stress or rising topography of the foothills are likely to have reorganised previous circulation regimes inherited from the former passive margin, and the composition of the circulating fluids (marine fluids versus meteoric water or hydrothermal brines). Numerous papers have described the fluid flow regime associated with dewatering processes in modern accretionary wedges and seismically active areas (Moore et al, 1991;Muir Wood, 1994;Henry, 2000), as well as paleo-fluid flow in Paleozoic and Alpine orogens (Oliver, 1986;Demicco, 1995, 1997;Muchez et al, 1995Muchez et al, , 2000Muchez et al, , 2002Travé et al, 1998Travé et al, , 2000Travé et al, and 2004Roure and Swennen, 2002;Swennen et al, 2003aSwennen et al, , 2004. Numerical simulations have been used recently to account for the topographic gravity driven regional fluid flow currently observed in foreland foldand-thrust belts (Garven, 1985;Ge and Garven, 1989Nesbitt and Muehlenbachs, 1994;Bachu, 1999).…”

Challenges of structural diagenesis in foreland fold-and-thrust belts: A case study on paleofluid flow in the Canadian Rocky Mountains West of Calgary

“…Besides the regional driving factors, 66 fluid flow is also controlled on a smaller scale by anisotropic permeability in the rocks and by 67 faults. The effect of faults on fluid flow is ambiguous, since fault zones act as either 68 preferential fluid pathways or seals (Knipe, 1993;Travé et al, 2000). Most previous studies 69 4 focus on cross-fault flow.…”

“…Still, fault-parallel flow or fault-controlled diagenesis is not 70 uncommon and results in modifications of fault properties (e.g. Travé et al, 2000). 71…”

Fluid flow record from fracture-fill calcite in the Eocene limestones from the South-Pyrenean Basin (NE Spain) and its relationship to oil shows

“…The lack of twin planes in the second calcite cement suggests precipitation in a different tectonic setting. Migration of fluids through the thrusts in the southPyrenean fold-and-thrust belt are regarded as multiepisodic (Travé et al, 2000).…”