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3. Rheology of partially molten rocks

3. Rheology of partially molten rocks. high pressures (up to 50+ kbar) -> not fully isotropic internal graphite furnace -> larger uncertainty on T profile. High P & T - Solid-medium pressure vessels (deformation set-up) ‏. Griggs deformation apparatus.

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3. Rheology of partially molten rocks

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  1. Forsterite '08 3. Rheology of partially molten rocks • high pressures (up to 50+ kbar) -> not fully isotropic • internal graphite furnace -> larger uncertainty on T profile High P & T - Solid-medium pressure vessels (deformation set-up)‏ Griggs deformation apparatus

  2. Forsterite '08 3. Rheology of partially molten rocks High P & T – Gas-medium deformation apparatus Paterson gas-medium apparatus (Orleans)‏ from Champallier, 2005

  3. Forsterite '08 3. Rheology of partially molten rocks High P & T – Gas-medium deformation apparatus from Schmocker et al., JGR 2003

  4. Forsterite '08 3. Rheology of partially molten rocks Partially molten plagioclase aggregates: Anorthite/Labradorite + 0-12% glass Dimanov et al., JGR 1998, Tectonoph. 2000

  5. Forsterite '08 3. Rheology of partially molten rocks Partially molten plagioclase aggregates: Anorthite/Labradorite + 0-12% glass Dimanov et al., JGR 1998, Tectonoph. 2000

  6. Forsterite '08 3. Rheology of partially molten rocks Partially molten plagioclase aggregates: Anorthite/Labradorite + 0-12% glass Wark & Watson, EPSL 1998 Dimanov et al., JGR 1998, Tectonoph. 2000

  7. Forsterite '08 3. Rheology of partially molten rocks Partially molten olivine aggregates: Olivine + 0-10% MORB Hirth & Kohlstedt, JGR 1995a,b, EPSL 1996

  8. Forsterite '08 3. Rheology of partially molten rocks Hirth & Kohlstedt, JGR 1995a,b, EPSL 1996

  9. Forsterite '08 3. Rheology of partially molten rocks – Effect of water Partially molten olivine aggregates: Olivine + 0-10% MORB Hirth & Kohlstedt, JGR 1995a,b, EPSL 1996

  10. Forsterite '08 3. Rheology of partially molten rocks – Effect of water Hirth & Kohlstedt, JGR 1995a,b, EPSL 1996

  11. Forsterite '08 3. Rheology of partially molten rocks – Effect of water Scott & Kohlstedt, EPSL: 2006

  12. Forsterite '08 3. Rheology of partially molten rocks Partially molten synthetic granite: quartz + quartz-albite glass Mecklenburgh & Rutter, JSG 2003

  13. Forsterite '08 3. Rheology of partially molten rocks Partially molten synthetic granite: quartz + quartz-albite glass + H2O Rutter, Brodie & Irving, JGR 2006

  14. Forsterite '08 3. Rheology of partially molten rocks Partially molten synthetic granite: quartz + quartz-albite glass + H2O Rutter, Brodie & Irving, JGR 2006

  15. Forsterite '08 4. From pure melt to solid rock - Rheological thresholds Partially molten synthetic granite: quartz + quartz-albite glass + H2O Rutter, Brodie & Irving, JGR 2006

  16. Forsterite '08 4. From pure melt to solid rock - Rheological thresholds Costa, GRL 2005 Rosenberg, IJES 2001

  17. Forsterite '08 4. From pure melt to solid rock - Rheological thresholds Caricchi et al., EPSL 2007

  18. Forsterite '08 4. From pure melt to solid rock - Rheological thresholds Burg & Vigneresse, 2002

  19. Forsterite '08 4. Large strain deformation – Melt segregation Large strain experiments on partially molten olivine: - olivine + 4-6% MORB - olivine + MORB + chromite 1200-1300°C, 3 kbars Paterson apparatus Holtzman et al., Science 2003, G3 2003 J. of Petrology 2005

  20. Forsterite '08 4. Large strain deformation – Melt segregation Holtzman et al., 2003, 2005

  21. Forsterite '08 4. Large strain deformation – Melt segregation Lattice preferred orientations (LPO)‏ Simple shear, 1200-1300°C, 3kbars Olivine aggregates (Bystricky et al., Science 2000) Olivine + 4% MORB Olivine + 6% MORB + chromite (Holtzman et al., Science 2003)‏

  22. Forsterite '08 4. Large strain deformation – Melt segregation Holtzman et al. 2003 from Bystricky 2003

  23. Forsterite '08 4. Large strain deformation – Melt segregation Holtzman et al., Science 2003, G3 2005

  24. Forsterite '08 4. Large strain deformation – Melt segregation Katz et al., Nature 2006

  25. Forsterite '08 4. Large strain deformation – Melt segregation Morgan et al., JGR 1999

  26. Forsterite '08 4. Large strain deformation – Melt segregation Granular flow in water-rich quartz aggregates torsion experiments in gas-medium deformation apparatus

  27. Forsterite '08 4... Liquid segregation & Strain partitioning Granular flow in water-rich quartz aggregates Schmocker et al., 2003

  28. Forsterite '08 4... Liquid segregation & Strain partitioning Granular flow in water-rich quartz aggregates Schmocker et al., 2003

  29. Forsterite '08 Déformation de suspensions magmatiques (0-65% de solide)‏ Haplogranitic melt + Al2O3 crystals Arbaret et al., JGR 2007 Champallier et al., EPSL 2008

  30. Forsterite '08 Déformation de suspensions magmatiques (0-65% de solide)‏ Arbaret et al., JGR 2007 Champallier et al., EPSL 2008

  31. Forsterite '08 Déformation de suspensions magmatiques (0-65% de solide)‏ Arbaret et al., JGR 2007 Champallier et al., EPSL 2008

  32. Forsterite '08 Déformation de suspensions magmatiques (0-65% de solide)‏ 54% crystal fraction Arbaret et al., JGR 2007

  33. Forsterite '08 Déformation de suspensions magmatiques (0-65% de solide)‏ extrait de Champallier 2005 Arbaret et al., JGR 2007

  34. Forsterite '08 Déformation de suspensions magmatiques (0-65% de solide)‏ Arbaret et al., JGR 2007

  35. Forsterite '08 Future directions - sensitive load cell in Paterson apparatus => complete sets of experiments => robust flow laws - thorough studies on fabric development (SPO, LPO) - deformation during crystallization γ ~ 3.7 non déformé liquide haplotonalitique partiellement cristallisé (quartz nodules + plagioclase) - 775°C, 300 MPa

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