P/T ratio in high-pressure rocks as a function of dip and velocity of continental subduction

Lithosphere

Volumn 1, Issue 5, 2009, Pages 282-290

  Gueydan, Frédéric ^a   Le Garzic, Edouard ^a,b   Carry, Nicolas ^a,c  

^a UNIVERSITÉ DE RENNES 1   (France)

^b UNIVERSITÉ DE STRASBOURG EOST   (France)

^c UNIVERSITÉ DE FRANCHE COMTÉ   (France)

Author keywords

[No Author keywords available]

Indexed keywords

METAMORPHIC ROCKS; TEMPERATURE;

CONTINENTAL MARGIN; CONTINENTAL SUBDUCTIONS; CONVERGENCE RATES; HIGH-PRESSURE ROCKS; LOW TEMPERATURES; METAMORPHIC BELTS; ONE-DIMENSIONAL (1D) MODELS; THERMAL EVOLUTION;

VELOCITY;

BLUESCHIST; CONTINENTAL MARGIN; DIP; EOCENE; HIGH PRESSURE SYSTEM; METAMORPHIC ROCK; OCEANIC LITHOSPHERE; ONE-DIMENSIONAL MODELING; P-T CONDITIONS; SUBDUCTION; THERMAL EVOLUTION;

AEGEAN SEA; MEDITERRANEAN SEA; TURKEY;

EID: 84995676047     PISSN: 19418264     EISSN: 19474253     Source Type: Journal    
DOI: 10.1130/L46.1     Document Type: Article

References (40)

1. Abers, G.A., van Keken, P.E., Kneller, E.A., Ferris, A., and Stachnik, J.C., 2006, The thermal structure of subduction zones constrained by seismic imaging: Implications for slab dehydration and wedge flow: Earth and Planetary Science Letters, 241, 387-397, doi: 10.1016/j.epsl.2005.11.055.
2. Arcay, D., Doin, M.-P., Tric, E., and Bousquet, R., 2007a, Influence of the precollisional stage on subduction dynamics and the buried crust thermal state: Insights from numerical simulations: Tectonophysics, 441, 27-45, doi: 10.1016/j.tecto.2007.06.001.
3. Arcay, D., Tric, E., and Doin, M.-P., 2007b, Slab surface temperature in subduction zones: Influence of the interplate decoupling depth and upper plate thinning processes: Earth and Planetary Science Letters, 255, 324-338, doi: 10.1016/j.epsl.2006.12.027.
4. Batt, G., and Braun, J., 1997, On the thermomechanical evolution of compressionalorogens: Geophysical Journal International, 128, 364-382, doi: 10.1111/j.1365-246X.1997.tb01561.x.
5. Bousquet, R., Goffé, B., Henry, P., Le Pichon, X., and Chopin, C., 1997, Kinematic, thermal and petrological modelof the Central Alps: Lepontine metamorphism in the upper crust and eclogitisation of the lower crust: Tectonophysics, 273, 105-127, doi: 10.1016/S0040-1951(96)00290-9.
6. Bröcker, M., and Enders, M., 1999, U-Pb zircon geochronology of unusual eclogite-facies rocks from Syros and Tinos (Cyclades, Greece): Geological Magazine, 136, 111-118, doi: 10.1017/S0016756899002320.
7. Burg, J.P., and Gerya, T.V., 2005, The role of viscous heating in Barrovian metamorphism of collisionalorogens: Thermomechanical models and application to the Lepontine Dome in the Central Alps: Journalof Metamorphic Geology, 23, 75-95, doi: 10.1111/j.1525-1314.2005.00563.x.
8. Burov, E., and Yamato, P., 2008, Continental plate collision, P-T-t-z conditions and unstable vs. stable plate dynamics: Insights from thermo-mechanical modelling: Lithos, 103, 178-204, doi: 10.1016/j.lithos.2007.09.014.
9. Carry, N., Gueydan, F., Brun, J.P., and Marquer, D., 2009, Mechanical decoupling of high pressure crustal units during continental subduction: Earth and Planetary Science Letters, 278, 13-25, doi: 10.1016/j.epsl.2008.11.019.
10. Dewey, J.F., Helman, M.L., Turco, E., Hutton, D.H.W., and Knott, S.D., 1989, Kinematics of the western Mediterranean, in Coward, M.P., Dietrich, D., and Park, R.G., eds., Conference on Alpine Tectonics: The Geological Society, London, Special Publication 45, 265-283.
11. Gerya, T.V., Stöckhert, B., and Perchuk, A.L., 2002, Exhumation of high pressure metamorphic rocks in a subduction channel: A numerical simulation: Tectonics, 21, 6-1-6-19.
12. Goffé, B., Bousquet, R., Henry, P., and Le Pichon, X., 2003, Effect of the chemical composition of the crust on the metamorphic evolution of orogenic wedges: Journalof Metamorphic Geology, 21, 123-141, doi: 10.1046/j.1525-1314.2003.00422.x.
13. Guillot, S., Garzanti, E., Baratoux, D., Marquer, D., Maheo, G., and de Sigoyer, J., 2003, Reconstructing the total shortening history of the NW Himalaya: Geochemistry Geophysics Geosystems, 4, 1064, doi: 10.1029/2002GC000484.
14. 2 O contents: Journalof Geophysical Research, 108, no. B1, 2029, doi: 10.1029/2001JB001127.
15. Hacker, B., Peacock, S., Abers, G., and Holloway, S., 2003b, Subduction factory: 2. Are intermediate-depth earthquakes in subduction slabs linked to metamorphic dehydration reactions?: Journalof Geophysical Research, 108, no. B1, 2030, doi: 10.1029/2001JB001129.
16. Huerta, A.D., Royden, L.H., and Hodges, K.V., 1998, The thermal structure of collisionaloro-gens as a response to accretion, erosion, and radiogenic heating: Journalof Geophysical Research, 103, 15,287-15,302, doi: 10.1029/98JB00593.
17. Jamieson, R.A., and Beaumont, C., 1988, Orogeny and metamorphism: A model for deformation and pressure-temperature-time paths with applications to the central and southern Appalachians: Tectonics, 7, 417-445, doi: 10.1029/TC007i003p00417.
18. Jamieson, R.A., Beaumont, C., Medvedev, S., and Nguyen, M.H., 2004, Crustal channel flows: 2. Numerical models with implications for metamorphism in the Himalayan-Tibetan oro-gen: Journalof Geophysical Research, 109, B06407, doi: 10.1029/2003JB002811.
19. Jolivet, L., and Brun, J.-P., 2008, Cenozoic geodynamic evolution of the Aegean: International Journalof Earth Sciences, doi: 10.1007/s00531-008-0366-4.
20. Jolivet, L., and Faccenna, C., 2000, Mediterranean extension and the Africa-Eurasia collision: Tectonics, 19, 1095-1106, doi: 10.1029/2000TC900018.
21. Jolivet, L., Goffé, B., Monié, P., Truffert-Luxey, C., Patriat, M., and Bonneau, M., 1996, Miocene detachment in Crete and exhumation P-T-t paths of high-pressure metamorphic rocks: Tectonics, 15, 1129-1153, doi: 10.1029/96TC01417.
22. Jolivet, L., Faccenna, C., Goffé, B., Burov, E., and Agard, P., 2003, Subduction tectonics and exhumation of high-pressure metamorphic rocks in the Mediterranean orogens: American Journalof Science, 303, 353-409, doi: 10.2475/ajs.303.5.353.
23. Jolivet, L., Raimbourg, H., Labrousse, L., Avigad, D., Leroy, Y., Austrheim, H., and Andersen, T.B., 2005, Softening triggered by eclogitization, the first step toward exhumation during continental subduction: Earth and Planetary Science Letters, 237, 532-547, doi: 10.1016/j.epsl.2005.06.047.
24. Leroy, M., Gueydan, F., and Dauteuil, O., 2008, Uplift and strength evolution of passive margins inferred from 2-D conductive modelling: Geophysical Journal International, 172, 464-476, doi: 10.1111/j.1365-246X.2007.03566.x.
25. Parra, T., Vidal, O., and Jolivet, L., 2002, Relation between the intensity of deformation and ret-rogression in blueschist metapelites of Tinos Island (Greece) evidenced by chloritemica local equilibria: Lithos, 63, 41-66, doi: 10.1016/S0024-4937(02)00115-9.
26. Peacock, S.M., 1993, The importance of blueschist → eclogite dehydration reactions in sub-ducting oceanic crust: Geological Society of America Bulletin, 105, 684-694, doi: 10.1130/0016-7606(1993)105<0684:TIOBED>2.3.CO;2.
27. Peacock, S.M., and Wang, K., 1999, Seismic consequences of warm versus cool subduction metamorphism: Examples from southwest and northeast Japan: Science, 286, 937-939, doi: 10.1126/science.286.5441.937.
28. Platt, J.P., Soto, J.I., Whitehouse, M.J., Hurford, A.J., and Kelley, S.P., 1998, Thermal evolution, rate of exhumation, and tectonic significance of metamorphic rocks from the floor of the Alboran extensional basin, western Mediterranean: Tectonics, 17, 671-689, doi: 10.1029/98TC02204.
29. Roselle, G.T., and Engi, M., 2002, Ultra high pressure (UHP) terrains: Lessons from thermal modeling: American Journalof Science, 302, 410-441, doi: 10.2475/ajs.302.5.410.
30. Rosenbaum, G., Lister, G.S., and Duboz, C., 2002, Relative motions of Africa, Iberia and Europe during Alpine orogeny: Tectonophysics, 359, 117-129, doi: 10.1016/S0040-1951(02)00442-0.
31. Shaked, Y., Avigad, D., and Garfunkel, Z., 2000, Alpine high-pressure metamorphism at the Almyropotamos window (southern Evia, Greece): Geological Magazine, 137, no. 4, 367-380.
32. Stöckhert, B., and Gerya, T.V., 2005, Pre-collisional high pressure metamorphism and nappe tectonics at active continental margins: A numerical simulation: Terra Nova, 17, 102-110, doi: 10.1111/j.1365-3121.2004.00589.x.
33. Theye, T., Seidel, E., and Vidal, O., 1992, Carpholite, sudoite, and chloritoid in low-grade high-pressure metapelites from Crete and the Peloponnese, Greece: European Journalof Mineralogy, 4, 487-507.
34. Trotet, F., Vidal, O., and Jolivet, L., 2001, Exhumation of Syros and Sifnos metamorphic rocks (Cyclades, Greece): New constraints on the P-T paths: European Journalof Mineralogy, 13, 901-920, doi: 10.1127/0935-1221/2001/0013/0901.
35. Van Hinsbergen, D.J.J., Hafkenscheid, E., Spakman, W., Meulenkamp, J.E., and Wortel, M.J.R., 2005, Nappe stacking resulting from subduction of oceanic and continental lithosphere below Greece: Geology, 33, 325-328, doi: 10.1130/G20878.1.
36. van Keken, P.E., Kiefer, B., and Peacock, S.M., 2002, High-resolution models of subduction zones: Implications for mineral dehydration reactions and the transport of water into the deep mantle: Geochemistry Geophysics Geosystems, 3, doi: 10.1029/2001GC000256.
37. 39 Ar dating of white micas from an alpine high-pressure metamorphic belt on Naxos (Greece): The resetting of the argon isotopic system: Contributions to Mineralogy and Petrology, 93, 187-194, doi: 10.1007/BF00371320.
38. 39 Ar age spectrum measurements: Journalof Metamorphic Geology, 6, 571-594, doi: 10.1111/j.1525-1314.1988.tb00441.x.
39. 2 O (NCFMASH), with application to metamorphic rocks from Samos, Greece: Contribu-tions to Mineralogy and Petrology, 132, 85-102, doi: 10.1007/s004100050406.
40. Yamato, P., Burov, E., Agard, P., Le Pourhiet, L., and Jolivet, L., 2008, HP-UHP exhumation during slow continental subduction: Self-consistent thermodynamically and thermomechanically coupled model with application to the Western Alps: Earth and Planetary Science Letters, 271, 63-74, doi: 10.1016/j.epsl.2008.03.049.