Interaction of deformation and metamorphism during subduction and exhumation of hydrated oceanic mantle: Insights from the Western Alps

Journal of Metamorphic Geology

Volumn 30, Issue 7, 2012, Pages 687-702

  Rebay, G ^a   Spalla, M I ^b   Zanoni, D ^a  

^a UNIVERSITY OF PAVIA   (Italy)

^b UNIVERSITY OF MILAN   (Italy)

Author keywords

Alpine olivine; Alpine Ti clinohumite; Eclogite facies serpentinites; P T d t path; Zermatt Saas zone

Indexed keywords

ALPINE TI-CLINOHUMITE; BULK COMPOSITIONS; CLINOPYROXENES; ECLOGITES; MANTLE ROCKS; METAMORPHIC EVOLUTION; MINERAL ASSEMBLAGE; MULTISCALES; P-T-D-T PATH; PEAK CONDITIONS; RE-EQUILIBRATION; SERPENTINITE; TECTONIC SLICES; TEMPERATURE DECREASE; UHP METAMORPHISM; ZERMATT-SAAS;

DEFORMATION; HYDRATION; IGNEOUS ROCKS; ILMENITE; MINERALS; OLIVINE; SERPENTINE;

METAMORPHIC ROCKS;

ALPINE ENVIRONMENT; AMPHIBOLITE FACIES; DEFORMATION MECHANISM; EPIDOTE; EXHUMATION; METAMORPHISM; OCEANIC LITHOSPHERE; P-T CONDITIONS; P-T-T PATH; SERPENTINITE; SUBDUCTION;

ALPS; SWITZERLAND; VALAIS; WESTERN ALPS; ZERMATT;

EID: 84864834116     PISSN: 02634929     EISSN: 15251314     Source Type: Journal    
DOI: 10.1111/j.1525-1314.2012.00990.x     Document Type: Article

References (71)

1. Angiboust, S. & Agard, P., 2010. Initial water budget: the key to detaching large volumes of eclogitized oceanic crust along the subduction channel? Lithos, 120, 453-474.
2. Angiboust, S., Agard, P., Jolivet, L. & Beyssac, O., 2009. The Zermatt-Saas ophiolite: the largest (60-km wide) and deepest (c. 70-80km) continuous slice of oceanic lithosphere detached from a subduction zone? Terra Nova, 21, 171-180.
3. Barnicoat, A.C. & Fry, N., 1986. High-pressure metamorphism of the Zermatt-Sass ophiolite, Switzerland. Journal of Geological Society London, 143, 607-618.
4. 39Ar. Terra Nova, 5, 380.
5. Baumann, C., Gerya, T.V. & Connolly, J.A.D., 2010. Numerical modelling of spontaneous slab-breakoff dynamics during continental collision. Geological Society, London, Special Publications, 332, 99-114.
6. Bearth, P., 1967. Die ophiolite der Zone von Zermatt-Saas Fee. Beitrag Geologische Karte Schweitz, 132, 1-130.
7. Bearth, P., 1976. Zur Gliederung der Bündnerschiefer in der Region von Zermatt. Eclogae Geologicae Helvetiae, 69, 149-161.
8. Beccaluva, L., Dal Piaz, G.V. & Macciotta, G., 1984. Transitional to normal MORB ophiolitic metabasites from the Zermatt-Saas, Combin and Antrona units, western Alps: implications for the paleogeografic evolution of the western Tethyan basin. Geologie en Mijnbouw, 63, 165-177.
9. Botwell, S.A., Cliff, R.A. & Barnicoat, A.C., 1994. Sm-Nd isotopic evidence on the age of eclogitization in the Zermatt-Saas ophiolite. Journal of Metamorphic Geology, 12, 187-196.
10. Bucher, K. & Grapes, R., 2009. The eclogite-facies Allalin gabbro of the Zermatt-Saas ophiolite, Western Alps: a record of subduction zone hydration. Journal of Petrology, 50, 1405-1442.
11. Bucher, K., Fazis, Y., de Capitani, C. & Grapes, R., 2005. Blueschists, eclogites, and decompression assemblages of the Zermatt-Saas ophiolite: high-pressure metamorphism of subducted Tethys lithosphere. American Mineralogist, 90, 821-835.
12. Caby, R., Kienast, J.R. & Saliot, P., 1978. Structure, métamorphisme et modèle d'évolution tectonique des Alpes occidentales. Revue Géographie Physique Géologie Dynamique, 20, 307-322.
13. Cartwright, I. & Barnicoat, A.C., 2002. Petrology, geochronology, and tectonics of shear zones in the Zermatt-Saas and Combin zones of the Western Alps. Journal of Metamorphic Geology, 20, 263-281.
14. Chinner, G.A. & Dixon, J.E., 1973. Some high pressure parageneses of the Allalin gabbro, Valis, Switzerland. Journal of Petrology, 14, 185-202.
15. Cloos, M., 1993. Lithospheric buoyancy and collisional orogenesis: subduction of oceanic plateaus, continental margins, island arcs, spreading ridges and seamounts. Geological Society of America Bulletin, 105, 715-737.
16. Dal Piaz, G.V., 1999. The Austroalpine-Piedmont nappe stack and the puzzle of Alpine Tethys. In: 3rd Workshop on Alpine Geological Studies. (eds Gosso, G., Jadoul, F., Sella, M. & Spalla, M.I.) Memorie di Scienze Geologiche, pp. 155-176. Società Cooperativa Tipografica, Padua, Italy.
17. Dal Piaz, G.V. & Ernst, W.G., 1978. Areal geology and petrology of eclogites and associated metabasites of the Piemonte ophiolite nappe, Breuil - St. Jacques area, Italian Western Alps. Tectonophysics, 51, 99-126.
18. Dal Piaz, G.V., Di Battistini, G., Gosso, G. & Venturelli, G., 1980. Rodingitic gabbro dykes and rodingitic reaction zones in the upper Valtournanche-Breuil area, Piemonte ophiolite nappe, Italian Western Alps. Archives des Sciences, Genève, 33, 161-179.
19. Dal Piaz, G.V., Cortiana, G., Del Moro, A., Martin, S., Pennacchioni, G. & Tartarotti, P., 2001. Tertiary age and paleostructural infereces of the eclogitic imprint in the Austroalpine outliers and Zermatt-Saas Zone ophiolite, western Alps. International Journal of Earth Sciences (Geologische Rundschau), 90, 668-684.
20. De Giusti, F., Dal Piaz, G.V., Schiavo, A., Massironi, M., Monopoli, B. & Bistacchi, A., 2003. Carta geotettonica della Valle d'Aosta. Memorie di Scienze Geologiche, 55, 129-149.
21. 2O-O. Journal of Metamorphic Geology, 25, 631-656.
22. Engi, M. & Lindsley, D.H., 1980. Stability of titanian tlinohumite: experiments and thermodynamic analysis. Contributions to Mineralogy and Petrology, 72, 415-424.
23. Ernst, W.G. & Dal Piaz, G.V., 1978. Mineral parageneses of eclogitic rocks and related mafic schists of the Piemonte ophiolite nappe, Breuil-St Jacques area, Italian Western Alps. American Mineralogist, 63, 621-640.
24. 2-bearing brine. International Geology Review, 52, 1220-1243.
25. Fontana, E., Panseri, M. & Tartarotti, P., 2008. Oceanic relict textures in the Mount Avic serpentinets, Western Alps. Ofioliti, 33, 105-118.
26. Forster, M.A., Lister, G.S., Compagnoni, R. et al. 2004. Mapping of oceanic crust with "HP" to "UHP" metamorphism: the Lago di Cignana Unit, (Western Alps). In: Mapping Geology in Italy (eds Pasquaré, G. & Venturini, C.), pp. 279-288, CNR-APAT, SELCA, Roma.
27. Gosso, G., Messiga, B., Rebay, G. & Spalla, M.I., 2010. Interplay between deformation and metamorphism during eclogitization of amphibolites in the Sesia-Lanzo Zone of the Western Alps. International Geology Review, 52, 1193-1219.
28. 40Ar/free phengite in ultrahigh-pressure metamorphic rocks from the Lago di Cignana area, Western Alps. Lithos, 92, 418-430.
29. Groppo, C. & Compagnoni, R., 2007. Metamorphic veins from the serpentinites of the Piemonte Zone, western Alps, Italy: a review. Periodico di Mineralogia, 76, 127-153.
30. Groppo, C., Beltrando, M. & Compagnoni, R., 2009. The P-T path of the ultra-high pressure Lago Di Cignana and adjoining high-pressure meta-ophiolitic units: insights into the evolution of the subducting Tethyan slab. Journal of Metamorphic Geology, 27, 207-231.
31. 2O in metamorphism and unexpected behaviour in the preservation of metamorphic assemblages. Journal of Metamorphic Geology, 19, 445-454.
32. Hobbs, B.E., Ord, A., Spalla, M.I., Gosso, G. & Zucali, M., 2010. The interaction of deformation and metamorphic reactions. Geological Society, London, Special Publications, 332, 189-222.
33. Holland, T.J.B. & Powell, R., 1998. An internally consistent thermodynamic data set for phases of petrological interest. Journal of Metamorphic Geology, 16, 309-344.
34. 2O. European Journal of Mineralogy, 10, 395-406.
35. Kienast, J.R., 1973. Sur l'existence de deux séries différentes au sein de l'ensamble "schistes lustrés-ophiolites" du Val d'Aoste; quelques arguments fondés sur l'étude des roches métamorphiques. Comptes Rendues de l'Academie des Sciences de Paris (séries D), 276, 2621-2624.
36. Kienast, J.R., 1983. Le métamorphisme de haute pression et basse température (Eclogites et Schistes Bleus): données nouvelles sur la pétrologie de la croûte océanique subductée et des sédiments associés. Unpublished Thèse d'Etat Thesis, Université de Paris VI, Paris.
37. van der Klauw, S.N.G.C., Reinecke, T. & Stöckhert, B., 1997. Exhumation of ultrahigh-pressure metamorphic oceanic crust from Lago di Cignana, Piemontese zone, western Alps. Lithos, 41, 79-102.
38. Lapen, T.J., Johnson, C.M., Baumgartner, L.P., Mahlen, N.J., Beard, B.L. & Amato, J.M., 2003. Burial rates during prograde metamorphism of an ultrahigh pressure terrane: an example from Lago di Cignaga, western Alps, Italy. Earth and Planetary Science Letters, 215, 57-72.
39. Li, X.P., Rahn, M.K. & Bucher, K., 2004. Serpentinites of the Zermatt-Saas ophiolite complex and their texture evolution. Journal of Metamorphic Geology, 22, 159-177.
40. 2O: an example from the Zermatt-Saas ophiolite. Journal of Metamorphic Geology, 26, 347-364.
41. López Sánchez-Vizcaíno, V., Trommsdorff, V., Gómez-Pugnaire, M.T., Garrido, C.J., Müntener, O. & Connolly, J.A.D., 2005. Petrology of titanian clinohumite and olivine at the high pressure breakdown of antigorite serpentinite to chlorite harzburgite (Almirez Massif, S Spain). Contributions to Mineralogy and Petrology, 149, 627-646.
42. López Sánchez-Vizcaíno, V., Gómez-Pugnaire, M.T., Garrido, C.J., Padrón-Navarta, J.A. & Mellini, M., 2009. Breakdown mechanisms of titanclinohumite in antigorite serpentinite (Cerro del Almirez massif, S. Spain): A petrological and TEM study. Lithos, 107, 216-226.
43. Marthaler, M. & Stampfli, G.M., 1989. Les Schistes lustrés à ophiolites de la nappe du Tsaté: un ancien prisme d'accrétion issu de la marge active apulienne. Schweizerische Mineralogische und Petrographische Mitteilungen, 69, 211-216.
44. Martin, S. & Tartarotti, P., 1989. Polyphase HP metamorphism in the ophiolitic glaucophanites of the lower St. Marcel valley (Aosta, Italy). Ofioliti, 14, 135-156.
45. Martin, S., Rebay, G., Kienast, J.R. & Mével, C., 2008. An ophiolitic palaeo-hydrothermal field metamorphosed in the eclogite-facies from the Italian western Alps, Saint Marcel valley. Ofioliti, 33, 49-63.
46. Mayer, A., Abouchami, W. & Dal Piaz, G.V., 1999. Eocene Sm-Nd age for the eclogitic metamorphism of the Zermatt-Saas ophiolite in Ayas valley, western Alps. European Union of Geoscience, 10, 109.
47. Oberhaensli, R., 1980. P-T Bestimmungen anhand von Mineralanalysen in Eklogiten und Glaukophaniten der Ophiolite von Zermatt. Schweizerische Mineralogische und Petrographische Mitteilungen, 60, 215-235.
48. Padrón-Navarta, J.A., López Sánchez-Vizcaíno, V., Garrido, C.J. & Gómez-Pugnaire, M.T., 2011. Metamorphic record of high-pressure dehydration of antigorite serpentinite to chlorite harzburgite in a subduction setting (Cerro del Almirez, Nevado-Filábride Complex, Southern Spain). Journal of Petrology, 52, 2047-2078.
49. Passchier, C.W. & Trouw, R.A.J., 2005. Microtectonics, 2nd edn. Springer, Heidelberg.
50. Pfeiffer, H.R., Colombi, A. & Ganguin, J., 1989. Zermatt-Saas and Antrona zone: a petrographic and geochimical comparison of polyphase metamorphic ophiolites of the western-central Alps. Schweizerische Mineralogische und Petrographische Mitteilungen, 69, 217-223.
51. Powell, R., Holland, T.J.B. & Worley, B., 1998. Calculating phase diagrams involving solid solutions via non-linear equations with example using THERMOCALC. Journal of Metamorphic Geology, 16, 577-588.
52. Rahn, M.K. & Bucher, K., 1998. Titanian clinohumite formation in the Zermatt-Saas ophiolites, Central Alps. Mineralogy and Petrology, 64, 1-13.
53. Rebay, G. & Messiga, B., 2007. Prograde metamorphic evolution and development of chloritoid-bearing eclogitic assemblages in subcontinental metagabbro (Sesia Lanzo zone, Italy). Lithos, 98, 275-291.
54. Rebay, G., Powell, R. & Diener, J.F.A., 2010. Calculated phase equilibria for a MORB composition in a P-T range, 450-650 °C and 18-28 kbar: the stability of eclogite. Journal of Metamorphic Geology, 28, 635-645.
55. Reddy, S.M., Wheeler, J. & Cliff, R.A., 1999. The geometry and timing of orogenic extension; an example from the Western Italian Alps. Journal of Metamorphic Geology, 17, 573-589.
56. Reinecke, T., 1991. Very high pressure metamorphism and uplift of coesite-bearing metasediments from the Zermatt-Saas Zone, Western Alps. European Journal of Mineralogy, 10, 7-17.
57. Reinecke, T., 1998. Prograde high- to ultrahigh-pressure metamorphism and exhumation of oceanic sediments at Lago di Cignana, Zermatt-Saas zone, western Alps. Lithos, 42, 147-189.
58. Ring, U., 1995. Horizontal contraction or horizontal extension? Heterogeneous late Eocene and early Oligocene general shearing during blueschist and greenschist facies metamorphism at the Pennine-Austroalpine boundary zone in the Western Alps the Western Alps. Geologische Rundschau, 84, 843-859.
59. Roda, M., Marotta, A.M. & Spalla, M.I., 2010. Numerical simulations of an ocean-continent convergent system: influence of subduction geometry and mantle wedge hydration on crustal recycling. Geochemistry, Geophysics, Geosystems, 11, 1-21.
60. Rubatto, D., Gebauer, D. & Fanning, M., 1998. Jurassic formation and Eocene subduction of the Zermatt-Saas-Fee ophiolites: implications for the geodynamic evolution of the Central and Western Alps. Contributions to Mineralogy and Petrology, 132, 269-287.
61. Salvi, F., Spalla, M.I., Zucali, M. & Gosso, G., 2010. Three-dimensional evaluation of fabric evolution and metamorphic reaction progress in polycyclic and polymetamorphic terrains: a case from the Central Italian Alps. Geological Society, London, Special Publications, 332, 173-187.
62. Scambelluri, M. & Rampone, E., 1999. Mg-metasomatism of oceanic gabbros and its control on Ti-clinohumite formation during eclogitization. Contributions to Mineralogy and Petrology, 135, 1-17.
63. Scambelluri, M., Müntener, O., Hermann, J., Piccardo, G.B. & Trommsdorff, V., 1995. Subduction of water into the mantle: history of an Alpine peridotite. Geology, 23, 459-462.
64. Spalla, M.I., Zucali, M., di Paola, S. & Gosso, G., 2005. A critical assessment of the tectono-thermal memory of rocks and definition of tectono-metamorphic units: evidence from fabric and degree of metamorphic transformations. Geological Society, London, Special Publications, 243, 227-247.
65. Spalla, M.I., Gosso, G., Marotta, A.M., Zucali, M. & Salvi, F., 2010. Analysis of natural tectonic systems coupled with numerical modelling of the polycyclic continental lithosphere of the Alps. International Geology Review, 52, 1268-1302.
66. Spear, F.S., 2003. Metamorphic Phase Equilibria and Pressure-Temperature-Time Paths. Mineralogical Society of America Monographs, pp. 799.
67. Stalder, R. & Ulmer, P., 2001. Phase relations of a serpentine composition between 5 and 14 GPa: significance of clinohumite and phase E as water carriers into the transition zone. Contributions to Mineralogy and Petrology, 140, 670-679.
68. White, R.W., Powell, R. & Holland, T.J.B., 2007. Progress relating to calculation of partial melting equilibria for metapelites. Journal of Metamorphic Geology, 25, 511-527.
69. Zanoni, D., Rebay, G., Spalla, M.I. & Bernardoni, J., 2011. Eclogitised rodingites of the Zermatt-Saas Zone: unravelling their evolution through deformation-metamorphism relationships. Rendiconti online della Società Geologica Italiana, 15, 131-134.
70. Zeh, A., Holland, T.J.B. & Klemd, R., 2005. Phase relationships in grunerite-garnet-bearing amphibolites in the system CFMASH, with applications to metamorphic rocks from the Central Zone of the Limpopo Belt, South Africa. Journal of Metamorphic Geology, 23, 1-17.
71. Zucali, M., Spalla, M.I. & Gosso, G., 2002. Strain partitioning and fabric evolution as a correlation tool: the example of the Eclogitic Micaschists Complex in the Sesia-Lanzo Zone (Monte Mucrone- Monte Mars, Western Alps, Italy). Schweizerische Mineralogische und Petrographische Mitteilungen, 82, 429-454.