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![Page 1: Forsterite '08 Griggs deformation apparatus 3. Rheology of partially molten rocks High P & T - Solid-medium pressure vessels (deformation set-up) high.](https://reader035.fdocuments.in/reader035/viewer/2022062404/551929c255034626428b4d0f/html5/thumbnails/1.jpg)
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Griggs deformation apparatus
3. Rheology of partially molten rocks
High P & T - Solid-medium pressure vessels(deformation set-up)
high pressures (up to 50+ kbar)
-> not fully isotropic
internal graphite furnace -> larger uncertainty on T
profile
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Paterson gas-medium apparatus (Orleans)
3. Rheology of partially molten rocks
High P & T – Gas-medium deformation apparatus
from Champallier, 2005
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3. Rheology of partially molten rocks
High P & T – Gas-medium deformation apparatus
from Schmocker et al., JGR 2003
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3. Rheology of partially molten rocks
Partially molten plagioclase aggregates:Anorthite/Labradorite + 0-12% glass
Dimanov et al., JGR 1998, Tectonoph. 2000
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3. Rheology of partially molten rocks
Partially molten plagioclase aggregates:Anorthite/Labradorite + 0-12% glass
Dimanov et al., JGR 1998, Tectonoph. 2000
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3. Rheology of partially molten rocks
Partially molten plagioclase aggregates:Anorthite/Labradorite + 0-12% glass
Dimanov et al., JGR 1998, Tectonoph. 2000
Wark & Watson, EPSL 1998
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3. Rheology of partially molten rocks
Partially molten olivine aggregates:Olivine + 0-10% MORB
Hirth & Kohlstedt, JGR 1995a,b, EPSL 1996
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3. Rheology of partially molten rocks
Hirth & Kohlstedt, JGR 1995a,b, EPSL 1996
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3. Rheology of partially molten rocks – Effect of water
Hirth & Kohlstedt, JGR 1995a,b, EPSL 1996
Partially molten olivine aggregates:Olivine + 0-10% MORB
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3. Rheology of partially molten rocks – Effect of water
Hirth & Kohlstedt, JGR 1995a,b, EPSL 1996
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3. Rheology of partially molten rocks – Effect of water
Scott & Kohlstedt, EPSL: 2006
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3. Rheology of partially molten rocks
Mecklenburgh & Rutter, JSG 2003
Partially molten synthetic granite: quartz + quartz-albite glass
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3. Rheology of partially molten rocks
Rutter, Brodie & Irving, JGR 2006
Partially molten synthetic granite: quartz + quartz-albite glass + H2O
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3. Rheology of partially molten rocks
Rutter, Brodie & Irving, JGR 2006
Partially molten synthetic granite: quartz + quartz-albite glass + H2O
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4. From pure melt to solid rock - Rheological thresholds
Rutter, Brodie & Irving, JGR 2006
Partially molten synthetic granite: quartz + quartz-albite glass + H2O
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Rosenberg, IJES 2001
Costa, GRL 2005
4. From pure melt to solid rock - Rheological thresholds
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Caricchi et al., EPSL 2007
4. From pure melt to solid rock - Rheological thresholds
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Burg & Vigneresse, 2002
4. From pure melt to solid rock - Rheological thresholds
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Holtzman et al., Science 2003, G3 2003J. of Petrology 2005
4. Large strain deformation – Melt segregation
Large strain experiments
on partially molten olivine: - olivine + 4-6% MORB - olivine + MORB + chromite
1200-1300°C, 3 kbarsPaterson apparatus
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Holtzman et al., 2003, 2005
4. Large strain deformation – Melt segregation
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4. Large strain deformation – Melt segregation
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)
Lattice preferred orientations (LPO)
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4. Large strain deformation – Melt segregation
from Bystricky 2003
Holtzman et al. 2003
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Holtzman et al., Science 2003, G3 2005
4. Large strain deformation – Melt segregation
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Katz et al., Nature 2006
4. Large strain deformation – Melt segregation
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Morgan et al., JGR 1999
4. Large strain deformation – Melt segregation
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4. Large strain deformation – Melt segregation
Granular flow in water-rich quartz aggregates
torsion experiments in gas-medium deformation apparatus
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Schmocker et al., 2003
4... Liquid segregation & Strain partitioning
Granular flow in water-richquartz aggregates
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Schmocker et al., 2003
4... Liquid segregation & Strain partitioning
Granular flow in water-rich quartz aggregates
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Déformation de suspensions magmatiques (0-65% de solide)
Haplogranitic melt + Al2O3 crystals
Arbaret et al., JGR 2007Champallier et al., EPSL 2008
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Déformation de suspensions magmatiques (0-65% de solide)
Arbaret et al., JGR 2007Champallier et al., EPSL 2008
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Déformation de suspensions magmatiques (0-65% de solide)
Arbaret et al., JGR 2007Champallier et al., EPSL 2008
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Déformation de suspensions magmatiques (0-65% de solide)
Arbaret et al., JGR 2007
54% crystal fraction
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Déformation de suspensions magmatiques (0-65% de solide)
Arbaret et al., JGR 2007
extrait de Champallier 2005
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Fors
teri
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Déformation de suspensions magmatiques (0-65% de solide)
Arbaret et al., JGR 2007
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Future directions
liquide haplotonalitique partiellement cristallisé(quartz nodules + plagioclase) - 775°C, 300 MPa
non déformé
γ ~ 3.7
- sensitive load cell in Paterson apparatus => complete sets of experiments => robust flow laws
- thorough studies on fabricdevelopment (SPO, LPO)
- deformation during crystallization