100th Anniversary Special Paper: Numerical Models of Extensional Deformation, Heat Transfer, and Fluid Flow across Basement-Cover Interfaces during Basin-Related Mineralization

Estimating the local paleo-fluid flow velocity: New textural method and application to metasomatism

“…Their results point to significant time-integrated fluxes (5000 -300 mol/cm²) consistent with the order of magnitude published in previous studies (Ferry, 1994a). Thermal and hydrological numerical models constitute another approach to constrain the direction and amount of fluid flow (Norton and Knight, 1977;Hanson et al, 1993;Gerdes et al, 1998;Cui et al, 2001;Oliver et al, 2006). In some case, good agreement is found between predictions from numerical models and studies based on mineralogical and stable isotope data (e.g.…”

“…For active regional metamorphism, a Darcy velocity of 10 -11 m/s is considered to be an average value . Hydrothermal numerical models of contact or regional metamorphism, predict Darcy velocities ranging from 10 -8 m/s to 10 -11 m/s (Oliver et al, 2006;Gerdes et al, 1998;Cook et al, 1997). In this work, the calculated velocity at grain scale is much higher, about 10 -3 to 10 -4 m/s.…”

Activation of stylolites as conduits for overpressured fluid flow in dolomitized platform carbonates

“…A large-scale pervasive fluid circulation system driven by topography or thermal convection can carry large amount of hot fluids along discharge faults (e.g. Matthai et al 2004;Oliver et al 2006;Person et al 2007). However, such a system can only work when the fluid pressure gradient is close to hydrostatic.…”

Rôle des facteurs hydrodynamiques dans le contrôle de la formation et de l’emplacement des dépôts d’uranium associés à des discordances: aperçus issus de la modélisation de transport réactif

“…Various rock properties assigned for each unit (Table 1) are based on the data used in similar numerical modeling studies and published compilations (e.g. Freeze and Cherry 1979;Garven and Freeze 1984;Raffensperger and Garven 1995a, b;Mclellan et al 2004;Oliver et al 2006;Cui et al 2012a;Aghbelagh and Yang 2014, and unpublished data). The fault dip angle and direction, and the permeability shown in Table 1 for different hydrostratigraphic units, will be adjusted in the following numerical case studies.…”