naturally mineralized systems and mineralisations a

Naturally Mineralized Systems and Mineralisations, a natural - PowerPoint PPT Presentation

Naturally Mineralized Systems and Mineralisations, a natural analogue of Enhanced Geothermal Systems (EGS)? LEDRU Patrick, BOUCHOT Vincent, GENTER Albert ENGINE Workshop Defining, exploring, imaging and assessing reservoirs for potential


  1. Naturally Mineralized Systems and Mineralisations, a natural analogue of Enhanced Geothermal Systems (EGS)? LEDRU Patrick, BOUCHOT Vincent, GENTER Albert ENGINE Workshop “Defining, exploring, imaging and assessing reservoirs for potential heat exchange”, GFZ Potsdam (Germany), 6-7 November 2006

  2. NMS versus EGS > Naturally Mineralized Systems (NMS) > Fault/fracture mechanism in the crust > Gold-vein deposits (Australia, Canada, France, …): natural analogues > Enhanced Geothermal Systems (EGS) > Reservoir Stimulations > Induced Seismic activity and Permeability > Natural fracture and present-day stress field

  3. Fracture zone architecture Gold Mineralized Mine deposit Fracture zone Alteration Quartz veins, Millier & Wilson (2004) halo A N A L O G U E Le Châtelet McCuaig & Kerrich, 1998 3D Fracture distribution at Soultz Fracture zone organisation at Soultz based on borehole data Genter et al., 2000

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