Mapping upper mantle anisotropy beneath SE France by SKS splitting indicates Neogene asthenospheric flow induced by Apenninic slab roll-back and deflected by the deep Alpine roots

Tectonophysics

Volumn 394, Issue 1-2, 2004, Pages 125-138

  Barruol, Guilhem ^a   Deschamps, Anne ^b   Coutant, Olivier ^c  

^a CNRS   (France)

^b UNIVERSITÉ DE NICE SOPHIA ANTIPOLIS   (France)

^c UNIVERSITÉ GRENOBLE ALPES   (France)

Author keywords

Alpine collision; Anisotropy; Asthenosphere; Massif Central hotspot; Shear wave splitting; Western Mediterranean

Indexed keywords

ANISOTROPY; SEISMOLOGY; SHEAR WAVES; TECTONICS;

ALPINE COLLISION; ASTHENOSPHERE; HOT SPOT; SHEAR WAVE SPLITTING; WESTERN MEDITERRANEAN;

SHEAR FLOW;

EID: 30744444026     PISSN: 00401951     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tecto.2004.08.002     Document Type: Article

References (47)

1. Babuska, V., Plomerova, J., Granet, M., 1990. The deep lithosphere in the Alps: a model inferred from P residuals. Tectonophysics 176, 137-165.
2. Babuska, V., Plomerova, J., Vecsey, L., Granet, M., Achauer, U., 2002. Seismic anisotropy of the French Massif Central and predisposition of Cenozoic rifting and volcanism by Variscan suture hidden in the mantle lithosphere. Tectonics 21. doi:10.1029/2001TC901035.
3. Barruol, G., Granet, M., 2002. A Tertiary asthenospheric flow beneath the southern French Massif Central related to the west Mediterranean extension evidenced by upper mantle seismic anisotropy. Earth Planet. Sci. Lett. 202, 31-47.
4. Barruol, G., Mainprice, D., 1993. A quantitative evaluation of the contribution of crustal rocks to the shear wave splitting of teleseismic SKS waves. Phys. Earth Planet. Inter. 78, 281-300.
5. Barruol, G., Souriau, A., 1995. Anisotropy beneath the Pyrenees range from teleseismic shear wave splitting. Geophys. Res. Lett. 22, 493-496.
6. Barruol, G., Souriau, A., Vauchez, A., Diaz, J., Gallart, J., Tubia, J., Cuevas, J., 1998. Lithospheric anisotropy beneath the Pyrenees from shear wave splitting. J. Geophys. Res. 103, 30039-30054.
7. Bayer, R., Carozzo, M.T., Lanza, R., Miletto, M., Rey, D., 1989. Gravity modelling along the ECORS-CROP vertical seismic reflection profile through the western Alps. Tectonophysics 162, 203-218.
8. Ben Ismail, W., Mainprice, D., 1998. An olivine fabric database: an overview of upper mantle fabrics and seismic anisotropy. Tectonophysics 296, 145-157.
9. Ben Ismail, W., Barruol, G., Mainprice, D., 2001. The Kaapvaal craton seismic anisotropy: petrophysical analyses of upper mantle kimberlite nodules. Geophys. Res. Lett. 28, 2497-2500.
10. Béthoux, N., Deschamps, A., Nolet, G., Bertrand, E., Contrucci, I., Sosson, M., Ferrandini, J., 1999. The deep structure of Corsica (Mediterranean Sea) as inferred from broad band seismological profile. Geophys. Res. Lett. 26, 2661-2664.
11. Bormann, P., Gruenthal, G., Kind, R., Montag, H., 1996. Upper mantle anisotropy underneath central Europe: effect of absolute plate motion and lithosphere-asthenosphere boundary topography? J. Geodyn. 22, 11-32.
12. Faccenna, C., Becker, T.W., Lucente, F.P., Jolivet, L., Rossetti, F., 2001a. History of subduction and Back-arc extension in the Central Mediterranean. Geophys. J. Int. 145, 809-820.
13. Faccenna, C., Funiciello, F., Giardini, D., Lucente, P., 2001b. Episodic back-arc extension during restricted mantle convection in the Central Mediterranean. Earth Planet. Sci. Lett. 187, 105-116.
14. Fischer, K.M., Wiens, D.A., 1995. The depth distribution of mantle anisotropy beneath the Tonga subduction zone. Earth Planet. Sci. Lett. 142, 253-260.
15. Godfrey, N.J., Christensen, N.I., Okaya, D.A., 2000. Anisotropy of schists: contribution of crustal anisotropy to active source seismic experiments and shear wave splitting observations. J. Geophys. Res. 105, 27991-28007.
16. Granet, M., Stoll, G., Dorel, J., Achauer, U., Poupinet, G., Fuchs, K., 1995a. Massif Central (France): new constraints on the geodynamical evolution from teleseismic tomography. Geophys. J. Int. 121, 33-48.
17. Granet, M., Wilson, M., Achauer, U., 1995b. Imaging a mantle plume beneath the French Massif Central. Earth Planet. Sci. Lett. 136, 281-296.
18. Gripp, A.E., Gordon, R.B., 2002. Young tracks of hotspots and current plate velocities. Geophys. J. Int. 150, 321-361.
19. Gueguen, E., Doglioni, C., Fernandez, M., 1998. On the post-25 Ma geodynamic evolution of the western Mediterranean. Tectonophysics 298, 259-269.
20. Judenherc, S., Granet, M., Boumbar, N., 1999. Two-dimensionnal anisotropic tomography of lithosphere beneath France using regional arrival times. J. Geophys. Res. 104, 13201-13215.
21. Kennett, B.L.N., 1995. Seismic traveltime tables. In: Ahrens, T.J. (Ed.), Global Earth Physics. A Handbook of Physical Constants, AGU Ref. Shelf. AGU, Washington, DC, pp. 126-143.
22. Lippitsch, R., Kissling, E., Ansorge, J., 2003. Upper mantle structure beneath the Alpine orogen from high resolution teleseismic tomography. J. Geophys. Res. 108 (B8), 2376. doi:10.1029/2002JB002016.
23. Lucente, F.P., Chiarabba, C., Cimini, G.B., Giardini, D., 1999. Tomographic constraints of the geodynamics evolution of the Italian region. J. Geophys. Res. 104, 20307-20327.
24. Mainprice, D., Barruol, G., Ben Ismail, W., 2000. The seismic anisotropy of the Earth's mantle: from single crystal to polycrystal. In: Karato, S.I. (Ed.), Earth's Deep Interior: Mineral Physics and Tomography from the Atomic to the Global Scale, Geodyn. Ser. AGU, Washington, DC, pp. 237-264.
25. Margheriti, L., Nostro, C., Cocco, M., Amato, A., 1996. Seismic anisotropy beneath the northern Apennines (Italy) and its tectonic implications. Geophys. Res. Lett. 23, 2721-2724.
26. Margheriti, L., Lucente, F.P., Pondrelli, S., 2003. SKS splitting measurements in the Apenninic-Tyrrhenian domain (Italy) and their relation with lithospheric subduction and mantle convection. J. Geophys. Res. 108 (B4), 2218. doi:10.1029/2002JB001793.
27. Masson, F., Verdun, J., Bayer, R., Debeglia, N., 1999. Une nouvelle carte gravimétrique des Alpes occidentales et ses conséquences structurales et tectoniques. C. R. Acad. Sci., Paris 329, 865-871.
28. Matte, P., 1986. Tectonics and plate tectonics model for the Variscan belt of Europe. Tectonophysics 126, 329-374.
29. Maury, R.C., Varet, J., 1980. Le volcanisme tertiaire et quaternaire en France. In: Autran, A., Dercourt, J. (Eds.), Géologie de la France-Evolution géologique de la France. Mem. BRGM No. 107, pp. 139-159.
30. Mele, G., Rovelli, A., Seber, D., Hearn, T.M., Barazangi, M., 1998. Compressional velocity structure and anisotropy in the upper-most mantle beneath Italy and surrounding regions. J. Geophys. Res. 103, 12529-12543.
31. Morillon, A.C., Feraud, G., Sosson, M., Ruffet, G., Crevola, G., Lerouge, G., 2000. Diachronous cooling on both sides of a major strike slip fault in the Variscan Maures Massif (SE France), as deduced from a detailed Ar/Ar study. Tectonophysics 321, 103-126.
32. Nicolas, A., Christensen, N.I., 1987. Formation of anisotropy in upper mantle peridotites-a review. In: Fuchs, K., Froidevaux, C. (Eds.), Composition, Structure and Dynamics of the Lithosphere-Asthenosphere System, Geodyn. Ser.. AGU, Washington, DC, pp. 111 - 123.
33. Nicolas, A., Polino, R., Hirn, A., Nicolich, R., 1990. ECORS-CROP traverse and the deep structure of the western Alps: a synthesis. Mém. Soc. Géol. Fr. 156, 15-27.
34. Paul, A., Cattaneo, M., Thouvenot, F., Spallarossa, D., Béthoux, N., Fréchet, J., 2001. A three-dimensional crustal velocity model of the south-western Alps from local earthquake tomography. J. Geophys. Res. 106, 19367-19390.
35. Piromallo, C., Faccenna, C., 2004. How deep can we find the traces of Alpine subduction? Geophys. Res. Lett. 31, L06605. doi:10.1029/2003GL019288.
36. Piromallo, C., Morelli, C., 2003. P wave tomography of the mantle under the Alpine-Mediterranean area. J. Geophys. Res. 108 (B2), 2065. doi:10.1029/2002JB001757.
37. Plomerova, J., Babuska, V., Scarpa, R., 1998. Teleseismic P-residual study in the Italian region; inferences on large scale anisotropic structure of the subcrustal lithosphere. Ann. Geofis. 41, 33-48.
38. Rollet, N., Déverchère, J., Beslier, M.O., Guennoc, P., Réhault, J.P., Sosson, M., Truffert, C., 2002. Back arc extension, tectonic inheritance, and volcanism in the Ligurian Sea, Western Mediterranean. Tectonics 21 (3). doi:10.1029/2001TC900027.
39. Savage, M.K., 1999. Seismic anisotropy and mantle deformation: what have we learned from shear wave splitting? Rev. Geophys. 37, 65-106.
40. Séranne, M., 1999. The Gulf of Lion continental margin (NW Mediterranean) revisited by IBS: an overview. In: Durand, B., Jolivet, L., Horvath, F., Séranne, M. (Eds.), The Mediterranean Basins: Tertiary Extension Within the Alpine Orogen. Geological Society, London, pp. 15-36.
41. Silver, P.G., 1996. Seismic anisotropy beneath the continents: probing the depths of geology. Annu. Rev. Earth Planet. Sci. 24, 385-432.
42. Silver, P.G., Chan, W.W., 1991. Shear wave splitting and subcontinental mantle deformation. J. Geophys. Res. 96, 16429-16454.
43. Silver, P.G., Savage, M.K., 1994. The interpretation of shear-wave splitting parameters in the presence of two anisotropic layers. Geophys. J. Int. 119, 949-963.
44. Tommasi, A., Tikoff, B., Vauchez, A., 1999. Upper mantle tectonics: three-dimensional deformation, olivine crystallographic fabrics and seismic properties. Earth Planet. Sci. Lett. 168, 173-186.
45. Vauchez, A., Bufalo, M., 1988. Charriage crustal, anatexie et décrochement ductile dans les Maures orientales (Var, France) au cours de l'orogène Varisque. Geol. Rundsch. 77, 45-62.
46. Vauchez, A., Barruol, G., Nicolas, A., 1999. Comment on "SKS splitting beneath rift zones". J. Geophys. Res. 104, 10787-10789.
47. Waldhauser, F., Kissling, E., Ansorge, J., Mueller, S., 1998. Three dimensionnal interface modelling with two-dimensional seismic data: the Alpine crust-mantle boundary. Geophys. J. Int. 135, 264-278.