Fluids from the host rock to and within the fault zone

10.03.16!
Master ès Sciences in
geology
Fluids from the host rock to and within the fault zone
Contact!persons:!Matteo&Lupi&([e-mail])!
Context'
Veins&represent&fluids&moving&through&geological&units&and&across&fault&zones.&Fault&structures&are&often&
characterised&by&a&widespread&presence&of&veins,&especially&in&geothermal&settings.&How&fluids&do&migrate&from&
the&host&rocks&to&the&fault&structures?&Are&they&driven&by&gravity&or&by&the&geothermal&gradient?&This&study&will&
investigate&how&fluids&migrate&from&the&host&rocks&to&the&fault&zones&and&will&try&to&quantify&how&veins&pervade&a&
given&fault&structure.&The&study&will&involve&fieldwork&and&lab&analysis.&This&subject&may&be&adapted&to&various&
outcrops&and&therefore&carried&out&by&more&than&one&person&(if&required).&&
Objectives'
- Determine&how&fluids&migrate&within&sedimentary&sequences&and&ultimately&enter&a&fault&zone&
- Quantify&the&amount&of&fluids&accommodated&in&fault&structure!
- Determine&for&a&given&set&of&veins&whether&fluids&were&downelling&or&upwelling!
Methods'
- Fieldwork!
Literature'
Gudmundsson,!A.,!2000.!Active!fault!zones!and!groundwater!flow.:!Geophysical&research&letters,!27,!p.!2993–
2996.!
Gudmundsson,!A.,!2001.!Fluid!overpressure!and!flow!in!fault!zones:!field!measurements!and!models.:!
Tectonophysics,!336,!p.!183–197.!
Gudmundsson,!A.,!Berg,!S.S.,!Lyslo,!K.B.!and!Skurtveit,!E.,!2001.!Fracture!networks!and!fluid!transport!in!active!
fault!zones:!Journal&of&Structural&Geology,!23,!p.!343–353.!
Sites'WEB!
Choice'of'orientation':''Sedimentary, environmental and reservoir geology