@article{fdi:010064732,
  title = {{E}volution of fault permeability during episodic fluid circulation : evidence for the effects of fluid-rock interactions from travertine studies ({U}tah-{USA})},
  author = {{F}rery, {E}. and {G}ratier, {J}. {P}. and {E}llouz-{Z}immerman, {N}. and {L}oiselet, {C}. and {B}raun, {J}. and {D}eschamps, {P}ierre and {B}lamart, {D}. and {H}amelin, {B}runo and {S}wennen, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}aults are known to be important pathways for fluid circulation within the crust. {T}he transfer properties along faults can evolve over time and space. {T}he {L}ittle {G}rand {W}ash and {S}alt {W}ash normal faults, located on the {C}olorado {P}lateau, are well known examples of natural {CO}2 leakage systems from depth to surface. {P}revious studies dated and established a chronology of {CO}2-enriched fluid source migration along the fault traces and linked the aragonite veins observed close to {C}rystal {G}eyser to {CO}2-pulses. {H}owever, multiple circulation events recorded along a given fault segment deserve to be studied in minute detail in order to unravel the chronology of these events, precipitation processes and associated mechanisms. {A} combination of structural geology, petrography, {U}/{T}h dating, oxygen and carbon isotope analysis were used to study the fault related {CO}2-enriched paleocirculations in order to build a conceptual model of {CO}2-circulation along the faults. {T}his study resulted in the precise descriptions of the features attesting {CO}2-enriched fluid circulation by a characterization of their relationship and architecture at the outcrop scale. {T}hese features are witnesses of a large range of circulation/sealing mechanisms, as well as changes in fluid chemistry and thermodynamic state of the system, providing evidence for (i) the evolution of the fluid through a pathway from depth to the surface and (ii) different cycles of fault opening and sealing. {L}arge circulation events linked with fault opening/sealing are observed and calibrated in nature with {M}illennial circulation and sealing time-lapses. {N}umerical modelling indicates that such sealing time-scale can be explained by the introduction of a fault sealing factor that allows modifying permeability with time and that is calibrated by the natural observations.},
  keywords = {{S}tructural geology ; {T}ravertine calibration ; {F}ault activity ; {CO}2-enriched fluids ; {F}luid circulation and leakage ; {V}ein sealing ; {ETATS} {UNIS} ; {UTHA} ; {COLORADO} {PLATEAU}},
  booktitle = {},
  journal = {{T}ectonophysics},
  volume = {651},
  numero = {},
  pages = {121--137},
  ISSN = {0040-1951},
  year = {2015},
  DOI = {10.1016/j.tecto.2015.03.018},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064732},
}