1 / 35

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.

lucas
Download Presentation

3. Rheology of partially molten rocks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related