Continental subduction and exhumation of HP rocks in Paleozoic orogenic belts: Uralides and Variscides

GFF

Volumn 120, Issue 2, 1998, Pages 209-222

  Matte, Philippe ^a  

^a CNRS   (France)

Author keywords

Age p T conditions; Exhumation modelling; HP metamorphism; Uralides; Variscides

Indexed keywords

EID: 0347660363     PISSN: 11035897     EISSN: 20000863     Source Type: Journal    
DOI: 10.1080/11035899801202209     Document Type: Article

References (135)

1. Andersen, T.B., Jamtveit, B., Dewey, J.F. & Swensson, E., 1991: Subduction and eduction of continental crust: major mechanisms during continent-continent collision and orogenic extensional collapse, a model based on the south Norwegian Caledonides. Terra Nova 3, 303-310.
2. Arenas, R., 1991: Opposite PTt paths of Hercynian metamorphism between the upper units of the Cabo Ortegal Complex and their substratum (northwest of the Iberian Massif). Tectonophysics 191, 347-364.
3. Arenas, R., Gil Ibarguchi, J.L., Gonzalez Lodeiro, F., Klein, E., Martinez Catalan, J.R., Ortega Girones, E., Pablo Macia, J.G., de & Peinado, M., 1986: Tectono-stratigraphic units in the complexes with mafic and related rocks of the NW of the Iberian Massif. Hercynica 2, 87-110.
4. Arenas, R., Rubio Pascual, F.J., Diaz Garcia, F. & Martinez Catalan, J.R., 1995: High-pressure micro-inclusions and development of an inverted metamorphic gradient in the Santiago schists (Ordenes complex, NW Iberian Massif, Spain): evidence of subduction and syn-collisional decompression. Journal of Metamorphic Geology 13, 141-164.
5. Arthaud, F. & Matte, Ph., 1977: Détermination de la position initiale de la Corse et de la Sardaigne à la fin de l’orogénèse hercynienne gràce aux marqueurs géologiques anté-mésozoïques. Bulletin de la Société Géologique de France 7, 19, 833-840.
6. Bakun-Czubarow, N., 1965: Rare elements content in eclogites from Nowa Wies in the region of Snieznik Klodski. Bulletin de l’Academie Polonaise de Sciences, Serie des Sciences Geologique et Géographique 3, 187-194.
7. Bakun-Czubarow, N., 1991: On the possibility of occurrence of quartz pseudomorphs after coesite in the eclogite-granulite rock series of the Zlote Mountains in the Sudetes, SW Poland. Archiwum Mineralogiczne 48, 3-25.
8. Balé, P. & Brun, J.P., 1986: Les complexes métamorphiques du Léon (NW Bretagne), un segment du domaine éohercynien translaté au Dévonien. Bulletin de la Société Géologique de France 8, 2, 471-477.
9. Ballèvre, M., Pinardon, J.L., Kenast, J.R. & Vuichard, J.P., 1989: Reversal of Fe-Mg partitioning between garnet and staurolite in eclogite-facies metapelites from the Champtoceaux nappe (Brittany, France). Journal of Petrology 30, 1321-1349.
10. Bard, J.P., 1983: Metamorphism of an obducted island arc: example of the Kohistan sequence (Pakistan) in the Himalayan collided range. Earth and Planetary Science Letters 65, 133-154.
11. Bard, J.P. & Caruba, C. 1981: Les séries leptyno-amphiboliques à éclogites relictuelles et ser-pentinites des Maures, marqueurs d’une paléosuture varisque affectant une croûte amincie. (Maures, Var, France). Comptes Rendus de l’Academie des Sciences Paris 282, 611-614
12. Bard, J.P. & Caruba, C., 1982: Texture et minéralogie d’une éclogite à disthènesaphirine-hypersthène-quartz en inclusion dans les gneiss migmatitiques des Cavalières, massif de Ste Maxime (Maures, var France). Comptes Rendus de l’Academie des Sciences Paris 294, 103-106
13. Barrois, Ch., 1883: Sur les amphibolites à glaucophanne de l’île de Groix. Bulletin de la Société Française de Minerogie et de Cristallographie 6, 289-293.
14. Beane, R.J., Liou, J.G., Coleman, R.G. & Leech, M.L., 1995: Petrology and retrograde P-T path for eclogites of the Maksyutov Complex, Southern Urals Mountains, Russia. The Island Arc 4, 254-266.
15. Beane, R.J., Liou, J.G. & Connely, J.N., 1996: Evidence for Devonian Eclogite-Facies Metamorphism in the Maksyutov Complex, Southern Ural Mountains, Russia. Geological Society of America, Abstracts with Programs 28, A-70.
16. Beard, B.L., Medaris, L.G., Johnson, C.M., Jelinek, E., Tonika, J. & Riciputi, L.R., 1995: Geochronology and geochemistry of eclogites from the Marianské Laznè Complex, Czech Republic: Implications for the Variscan orogenesis. Geolog-ische Rundschau 84, 552-567.
17. Bernard-Griffiths, J., Carpenter, M.S.N., Peucat, J.J. & Jahn, B.M., 1986: Geochemical and isotopic characteristics of blueschist facies rocks from the île de Groix, Armorican Massif (northwest France). Lithos 19, 235-253.
18. Bodinier, J.L., Burg, J.P., Leyreloup, A. & Vidal, H., 1988: Reliques d’un bassin d’arrière arc subducté puis obducté dans la région de Marvéjols (Massif Central). Bulletin de la Société Géologique de France 8, 4, 20-34.
19. Bouloton, J., Gonçalves, P. & Pin, C., 1998: Le pointement de pèridotite á grenatspinelle de la Croix-Valmes (Maures Centrales): un cumulat d’affinité océanique empliqué dans la subduction éhohercynienne? Comptes Rendus de l’Academie des Sciences Paris 326, 473-477.
20. Bouchardon, J.L., 1987: Evaluation des conditions de Pression-Temperature du “top” métamorphique des éclogites du Lévezou (Rouergue, Massif Central Français. Comptes Rendus de l’Academie des Sciences Paris 305, 271-285.
21. Briand, B., Piboule, M. & Bouchardon, J.L., 1988: Diversité géochimique des métabasites des groupes leptyno-amphiboliques du Rouergue et de Marvéjols (Massif Central). Origine et implications. Bulletin de la Société Géologique de France 8, 4, 489-498.
22. Bröcker, M. & Klemd, R., 1996: Ultrahigh-Pressure metamorpphism in the Sniez-nik Mountains (Sudetes, Poland): P-T constraints and geological implications. Journal of Geology 104, 417-433.
23. Burchfiel, B.C., Chen, Z., Hodges, K.V., Liu, Y., Royden, L.H., Deng, C. & Xu, J., 1992: The South Tibetan Detachment system, Himalayan orogen: Extension contemporaneous with and parallel to shortening in a collisional mountain belt. Geological Society of America, Special Paper 269, 1-41.
24. Burg, J.P. & Matte, P.J., 1978: A cross section through the Massif Central and the Scope of its Variscan Geodynamic Evolution. Zeitschrift der Deutschen Geo-logischen Gesellschaft 129, 429-460.
25. Burg, J.P., Leyreloup, A., Marchand, J. & Matte, Ph., 1984: Inverted metamorphic zonation and large scale thrusting in the Variscan Belt: an example in the French Massif Central. In D.H.W. Hutton & D.J. Sanderson (eds.): Variscan Tectonics of the North Atlantic Region, 47-61. Geological Society of London, Special Publication 14.
26. Burg, J.P., Delor, C.P., Leyreloup, A. & Romney, F., 1989: Inverted metamorphic zonation and Variscan thrust tectonics in the Rouergue area (Massif Central, France): P-T-t record from mineral to regional scale. In J.S. Daly, R.A. Cliff & B.W.D. Yardley (eds.): Evolution of Metamorphic Belts, 423-440. Geological Society of London, Special Publication 43.
27. Cabanis, B. & Godard, G., 1987: Les éclogites du Pays de Léon (Nord-Ouest du Massif Armoricain): étude pétrologique et géochimique, implications géodynamiques. Bulletin de la Société Géologique de France 8, 3, 1133-1142.
28. Carlswell, D.A., 1990: Eclogite-facies rocks. Blackie. 396 pp.
29. Carlswell, D.A. & Jamtveit, B., 1990: Variscan Sm-Nd ages for the high-pressure metamorphism in the Moldanubian Zone of the Bohemian Massif (Lower Austria). Neues Jahrbuch für Mineralogie, Abhandlungen 162, 69-78.
30. Carlswell, D.A. & O’Brien, P.J., 1993: Thermobarometry and geotectonic significance of high-pressure granulites: Examples from the Moldanubian zone of the Bohemian Massif in Lower Austria. Journal of Petrology 34, 427-459.
31. Carpenter, M.S.N. & Civetta, L., 1976: Hercynian high pressure/low temperature metamorphism in the Ile de Groix blueschists. Nature 262, 276-277.
32. Carpenter, M.S.N., Peucat, J.J. & Pivette, B., 1982: Geochemical and geochronological characteristics of Paleozoic volcanism in the Saint-Georges-sur-Loire synclinorium (S. Armori-can Massif). Evidence for Pre-hercynian tectonic evolution. Bulletin du Bureau de Rechèrches Géologiques et Minieres 1, 1-2, 63-79.
33. Chemenda, A.I., Mattauer, M., Malavieille, J. & Bokun, A., 1995: A mechanism for syn-collisional rock exhumation and associated normal faulting: Results from physical modelling. Earth and Planetary Science Letters 132, 225-232.
34. Chemenda, A.I., Mattauer, M. & Bokun, A., 1996: Continental subduction and a mechanism for exhumation of high-pressure metamorphic rocks: new modelling and field data from Oman. Earth and Planetary Science Letters 143, 172-182.
35. Chemenda, A., Matte, Ph. & Sokolov, V., 1997: A model of Paleozoic obduction and exhumation of high-pressure/low-temperature rocks in the southern Urals. Tectonophysics 276, 217-227.
36. Chesnokov, B.V. & Popov, V.A., 1965: Increasing volume of quartz grains in eclogites of the South Urals. Doklady Academii Nauk 62, 909-910 (in Russian).
37. Coleman, R.G. & Wang, X., 1995: Ultrahigh Pressure Metamorphism. Cambridge University Press. 528 pp.
38. Costa, S., 1991-1992: East-west diachronism of the collisional stage in the french Massif Central: Immplications for the European Variscan Orogen. Geodinamica Acta 5, 51-68.
39. Delor, C., Leyreloup, A., Bodinier, J.L. & Burg, J.P., 1986: Découverte d’éclogites à glaucophane dans la klippe de Najac (Massif Central Français): nouveaux témoins d’un stade de haute pression dans la chaîne de collision varisque. Comptes Rendus de l’Academie des Sciences Paris 302, 2, 11, 739-744.
40. Delor, C., Burg, J.P., Guiraud, M. & Leyreloup, A., 1987: Les métapélites à phengite-chloritoïde-grenat-staurotide-disthène de la klippe de Najac-Carmaux: Nouveaux marqueurs d’un métamorphisme de haute presszion varisque en Rouergue occidental. Comptes Rendus de l’Academie des Sciences Paris 305, 589-595.
41. Dobretsov, N.L., Shatsky, V.S., Coleman, R.G., Lennykh, V.I., Valizer, P.M., Liou, J., Zhang, R. & Beane, R.J., 1996: Tectonic setting and petrology of ul tra-high-pressure metamorphic rocks in th Maksyutov Complex, Ural Mountains, Russia. International Geology Review 38, 136-160.
42. Dobrzhinetskaya, L.E., Eide, E.A., Larsen, R.B., Sturt, B.A., Tronnes, R.G., Smith, D.C., Taylor, W.R. & Posukhova, T.V., 1995: Microdiamond in highgrade metamorphic rocks of the Western Gneiss region, Norway. Geology 23, 597-600.
43. Dubuisson, G., Hirn, A., Girardeau, J., Mercier, J.C. & Veinante, J.L., 1988: Multiple Variscan nappes in Limousin, western Massif Central: geophysical constraints on the geological model and geodynamic implications. Tectonophysics 147, 19-31.
44. Ducrot, J., Lancelot, J.R. & Marchand, J., 1983: Datation U-Pb sur zircons de l’éclogite de la Borie (Haut Allier, France) et conséquences sur l’évolution anté-hercynienne de l’Europe occidentale. Earth and Planetary Science Letters 62, 385-394.
45. Dudek, A., 1971: Chemical composition of Moldanubian eclogites and of their garnets. Krystallinikum 7, 167-180.
46. Dufour, E., Lardeaux, J.M. & Coffrant, D., 1985: Eclogites and granulites in the Monts du Lyonnais area: an eo-Hercynian plurifacial metamorphic evolution. Comptes Rendus de l’Academie des Sciences Paris 300, 141-144.
47. Dunning, G.R., Diaz Garcia, F., Arenas, R. & Martinez Catalan, J.R., 1997: A Lower Devonian ophiolite in the allochthonous complexes of the Iberian Massif (Variscan belt). U/Pb zircon protolith age from the Carreon ophiolite. Terra Nova 9, Abstract supplement 1, abstract 07/1P30.
48. Fonseca, P. E., Munha, J.M., Leal, N. & Ribeiro, A., 1997: High-pressure metamorphism in the Ossa Morena zone (SW Iberian fold belt). Terra Nova 9, Abstract supplement 1, abstract 41/2A05.
49. Franke, W., 1984: Variszischer Deckenbau im Raume der Münchberger Gneissmasse. Geotektonische Forschungen 68, 1-253.
50. Fritz, H., 1995: The Raabs series; a probable Variscan suture in the SE Bohemian Massif. Jahrbuch der Geologischen Bundesanstalt 138, 639-653.
51. Fritz, H., Dallmeyer, D. & Neubauer, F., 1996: Thick-skinned versus thin-skinned thrusting; Rheology controlled thrust propagation in the Variscan collisionaal belt in the southeastern Bohemian Massif, Czech Republic-Austria. Tectonics 15, 1389-1413.
52. Gardien, V., Lardeaux, J.M. & Misseri, M., 1988: Les péridotites des Monts du Lyonnais (MCF): témoins privilégiés ?d’une subduction de lithosphère paléozoïque. Comptes Rendus de l’Academie des Sciences Paris 307, 1967-1972.
53. Gebauer, D. & Grünenfelder, M., 1979: U-Pb zircon and Rb-Sr mineral dating of eclogites and their country rocks; example: Münchberger Gneiss Massif, northeastern Bavaria. Earth and Planetary Science Letters 42, 35-44.
54. Gee, D.G., 1978: Nappe displacement in the Scandinavian Caledonides. Tectonophysics 47, 393-419.
55. Ghezzo, C., Memmi, I. & Ricci, C.A., 1982: Le granuliti e le eclogiti della Sardegna nord-orientale. Guida alla Geologia del Paleozoico Sardo. Memoire della Societa Geologica Italiana 24, 151-156.
56. Gil Ibarguchi, J.I., 1995: Petrology of jadeite metagranite and associated orthogneiss from the Malpica-Tuy allochthon (Northwest Spain). European Journal of Mineralogy 7, 403-415.
57. Gil Ibarguchi, J.I. & Dallmeyer, R.D., 1991: Hercynian blueschist metamorphism in North Portugal: tectonothermal implications. Journal of Metamorphic Geology 9, 539-549.
58. Gil Ibarguchi, J.I., Mendia, M., Girardeau, J. & Peucat, J.J., 1990: Petrology of the eclogites and the clinopyroxene-garnet metabasites from the Cabo Ortegal complex (northwest Spain). Lithos 25, 133-162
59. Girardeau, J., Gil Ibarguchi, J. I. & Ben Jamaa, N., 1989: Evidence for a heterogeneous upper mantle in the Cabo Ortegal complexc, Spain. Science 245, 1231-1233.
60. Godard, G., 1990: Découverte d’éclogites, de péridotites à spinelle et d’amphibolites à corindon dans le Morvan. Comptes Rendus de l’Academie des Sciences Paris 310, 227-232.
61. Godard, G., Kienast, J.R. & Lasnier, B., 1981: Retrogressive development of glaucophane in some eclogites (from”Massif Armoricain, east of Nantes, France). Contributions to Mineralogy and Petrology 78, 126-135.
62. Green, H.V., II, Dobrzhinetskaya, L., Riggs, E.M. & Jin, Z.M., 1997: Alpe Arami: a peridotite massif from the mantle transition zone. Tectonophysics 279, 1-21.
63. Griffin, W.L., Austrheim, H., Brastad, K., Bryhni, I., Krill, A.G., Krogh, E.J., Mørk, M.B.E., Qvale, H. & Torudbakken, B., 1985: High-pressure metamorphism in the Scandinavian Caledonides. In D.G. Gee & B.A. Sturt (eds.): The Caledonide Orogen-Scandinavia and Related Areas, 783-802. Wiley.
64. Kastl, E. & Tonika, J., 1984: The Marianské Lazne metaophiolitic complex (West Bohemia). Krystallinikum 17, 59-76.
65. Kröner, A., Willner, A.P., Hegner, E., Frischbutter, A., Hofmann, J. & Bergner, R., 1995: Latest Precambrian (Cadomian) zircon ages, Nd isotopic systematics and P-T evolution of granitoid orthogneisses of the Erzgebirge, Saxony and Czech Republic. Geologische Rundschau 84, 437-456.
66. Kröner, A., O’Brien, P.J. & Pidgeon, R.J., 1997: Carboniferous high, medium and low pressure metamorphism in granulites from South Bohemia confirmed by SHRIMP zircon ages. Terra Nova 9, Abstract supplement 1, abstract 54/5P12
67. Kröner, A., Jaeckel, P., Reischmann, T. & Kroner, U., 1998: Further evidence for an early Carboniferous (340 Ma) age of high-grade metamorphism in the Saxon-ian granulite complex. Geologische Rundschau 86, 751-766.
68. Kryza, R., Muszynski, A. & Vielzeuf, D., 1990: Glaucophane-bearing assemblage overprinted by greenschist-facies metamorphism in the Variscan Kaczawa complex, Sudetes, Poland. Journal of Metamorphic Geology 8, 345-355.
69. Lacroix, A., 1891: Etude pétrographique des éclogites de la Loire inférieure. Bulletin de la Société de Sciences Naturelles de l’Ouest de la France 1, 81-114.
70. Lasnier, B., 1968: Découverte d’une granulite à disthène et almandin associée à la péridotite à grenat du massif de Courtilles (Haute Loire). Bulletin de la Société Française de Mineralogie et de Cristallographie 91, 490-494.
71. Lennykh, V.I., Valizer, P.M., Beane, R., Leech, M. & Ernst, W.G., 1995: Petrotectonic evolution of the Maksyutov complex, southern Urals, Russia: Implications for ultrahigh-pressure metamorphism. International Geology Review 37, 584-600.
72. Leyreloup, A., Buscail, F., Motard, C., Ciancaleoni, L., Dumoulin-Thiaut, Ch., Lavigne, J.F., Monié, P. & Brunel, M., 1996: Découverte de paragénèses de type schistes blancs dans les Maures occidentales. Chemin PTt. Implications géo-dynamiques. 16éme Réunion des Sciences de la Terre, BRGM, 55. Orléans.
73. Macintyre, R.M., Bowes, D.R., Hamidullah, S. & Onstott, T.C., 1992: K/Ar and Ar/Ar isotopic study of amphiboles from meta-ophiolite complexes, eastern Bohemian Massif. In Z. Kukal (ed.): Proceedings of the Internatonal Conference on the Bohemian Massif, 195-199. Czech Geological Survey, Prague.
74. Malavieille, J. & Chemenda, A., 1997: Impact of initial geodynamic setting on structure, ophiolite emplacement and tectonic evolution of collision belts. Ofioliti 22, 3-13.
75. Maluski, H., 1976: Interêt de la méthode 40Ar/39Ar pour la datation des glaucophanes. Exemple des glaucophanes de l’île de Groix (France). Comptes Rendus de l’Academie des Sciences Paris 283, 223-226.
76. Maluski, H. & Patocka, F., 1997: Geochemistry and 40Ar-39Ar geochronology of the mafic metavolcanic rocks from the Rychory Mountains complex (west Sudetes, Bohemian Massif): palaeotectonic significance. Geological Magazine 134, 703-716.
77. Marchant, R.H. & Stampli, G.M., 1997: Subduction of continental crust in the western Alps. Tectonophysics 269, 217-235.
78. Mattauer, M., 1986: Intracontinental subduction, crust-mantle decollement and crustal-stacking wedge in the Himalayas and other collision belts. Geological Society of London, Special Publication 19, 37-50.
79. Matte, Ph., 1991: Accretionary history of the Variscan belt in western Europe. Tectonophysics 196, 309-337.
80. Matte, Ph., 1995: Southern Uralides and Variscides: comparison of their anatomies and evolutions. Geologie en Mijnbouw 74, 151-166.
81. Matte, Ph. & Burg, J.P., 1981: Sutures, thrusts and nappes in the Variscan arc of western Europe: plate tectonic implications. In K.R. McClay & N.J. Price (eds.): Thrust and Nappe Tectonics, 353-358. Geological Society of London, Special Publication 8.
82. Matte, Ph. & Capdevila, R., 1978: Tectonique en grands plis couchés et plissements superposés d’âge hercynien dans la série de Ordenes-Betanzos (Galice occidentale). Cuadernos Seminarios de Estudias ceramicas de Sargadelos 27, 193-201
83. Matte, Ph. & Chemenda, A., 1996: Mechanism for exhumation of HP metamorphic rocks during continental subduction in Southern Urals. Comptes Rendus de l’Academie des Sciences Paris 323, 525-530.
84. Matte, Ph., Rajlich, P. & Lacassin, R., 1987: Variscan ductile thrusting and wrenching in the Bohemian Massif: strain pattern preliminary result. Terra Cognita Abstracts 7, p. 173.
85. Matte, Ph., Maluski, H., Rajlich, P. & Franke, W., 1990: Terrane boundaries in the Bohemian Massif: Result of large-scale Variscan shearing. Tectonophysics 177, 151-170.
86. Matte, Ph., Maluski, H., Caby, R., Nicolas, A., Kepezhinskas, P. & Sobolev, S., 1993: Geo-dynamic model and 40Ar/39Ar dating for the generation and emplacement of the HP metamorphism in SW Urals. Comptes Rendus de l’Academie des Sciences Paris 317, 1667-1674.
87. Medaris, L.G., Beard, B.L., Johnson, C.M., Valley, J.W., Spicuzza, M.J., Jelinek, E. & Misar, Z., 1995: Garnet pyroxenites and eclogite in the Bohemian Massif: geochemical evidence for Variscan recycling of subducted lithosphere. Geologische Rundschau 84, 489-505.
88. Mercier, L., Lardeaux, J.M. & Davy, Ph., 1991: On the tectonic significance of retrograde P-T-t paths in eclogites of the french Massif Central. Tectonics 10, 131-140.
89. Michard, A., Goffé, B., Saddiqi, O., Oberhänsli, R. & Wendt, A.S., 1994: Late Cretaceous exhumation of the Oman blueschists and eclogites: a two-stage extensional mechanism. Terra Nova 6, 404-413.
90. Michard, A., Goffé, B, Chopin, Chr. & Henry, C., 1996: Did the western Alps develop through an Oman-type stage? The geotectonic setting of high-pressure metamorphism in two contrasting Tethyan terranes. Eclogae Geologicae Helvetiae 89, 43-80.
91. Mlcoch, B. & Schulmann, K., 1992: Superposition of Variscan ductile shear deformation on pre-Variscan mantled gneiss structure, Catherine dome, Erzgebirge, Bohemian Massif. Geologische Rundschau 81, 501-513.
92. Montigny, R. & Allègre, C.J., 1974: A la recherche des océans perdus: les éclogites de Vendée. Comptes Rendus de l’Academie des Sciences Paris 279, 543-545.
93. Moussavou, M., 1997: Contribution à l’histoire thermo-tectonique varisque du massif des Maures, par la typologie du zircon et la géochronologie U-Pb sur minéraux accessoires. Ph.D. thesis, Université Montpellier II. 187 pp.
94. Munha, J., Ribeiro, A. & Ribeiro, M.L., 1984: Blueschists in the Iberian Variscan Chain (Tras-os-Montes: NE Portugal). Communicaçoes dos Serviços Geologicos de Portugal 70, 31-53.
95. Nicollet, C. & Leyreloup, A., 1978: Pétrologie des niveaux trondjhémitiques de haute pression associés aux éclogites et amphibolites des complexes leptyno amphiboliques du Massif Central Français. Canadian Journal of Earth Sciences 15, 696-707.
96. O’Brien, P.J. & Carlswell, D.A., 1993: Tectonometamorphic evolution of the Bohemian Massif: evidence for high pressure metamorphic rocks. Geologische Rundschau 82, 531-555.
97. O’Brien, P.J. & Vrana, S., 1995: Eclogites with a short lived granulite facies overprint in the Moldanubian Zone, Czech Republic: petrology, geochemistry and diffusion modelling of garnet zoning. Geologische Rundschau 84, 473-488.
98. Paquette, J.-L., Balé, P., Ballèvre, M. & Georget, Y., 1987: Géochronologie et géo-chimie des éclogites du Léon: nouvelles contraintes sur l’évolution géodyn-amique du Nord-Ouest du Massif Armoricain. Bulletin de Minéralogie 110, 683-696.
99. Paquette, J.-L., Menot, R.P. & Peucat, J.J., 1989: REE, Sm-Nd and U-Pb zircon study of eclogites from the Alpine External Massifs (Western Alps): Evidence from crustal contamination. Earth and Planetary Science Letters 96, 181-198.
100. Paquette, J.-L., Monchoux, P. & Couturier, M., 1995: Geochemical and isotopic study of a norite-eclogite transition in the European Variscan Belt. Implications for U-Pb zircon systematics in metabasic rocks. Geochimica et Cosmochimica Acta 59, 1611-1622.
101. Parga Pondal, I., Matte, Ph., Capdevila, R., Parga, J.R. & Teixeira, C., 1967: Carte Géologique du Nord-Ouest de la Péninsule Ibérique (Hercynien et anté-Hercynien, 1/500,000. 1st Ed. Serviços Geologicos de Portugal.
102. Peucat, J.J., 1986: Rb-Sr and U-Pb dating of the blueschists of the Ile de Groix. Geological Society of America, Memoir 164, 229-238.
103. Peucat, J.J., Vidal, Ph., Godard, G. & Postaire, B., 1982: Precambrian U-Pb zircon ages in eclogites and garnet pyroxenites from South Brittany (France): an old oceanic crust in the West European Hercynian belt? Earth and Planetary Science Letters 60, 70-78.
104. Pin, Chr. & Lancelot, J., 1982: U-Pb dating of an early Paleozoic bimodal magmatism in the French Massif Central and its further metamorphic evolution. Contributions to Mineralogy and Petrology 79, 1-12.
105. Pin, Chr. & Peucat, J.J., 1986: Ages des épisodes de metamorphisme paléozoïques dans le Massif Central et le Massif Armoricain. Bulletin de la Société Géolo-gique de France 8, 2, 461-469.
106. Pin, Chr. & Vielzeuf, D., 1988: Les granulites de haute-pression d’Europe moyen-ne témoins d’une subduction éo-hercynienne. Implications sur l’origine des groupes leptyno-amphiboliques. Bulletin de la Société Géologique de France 8, 4, 13-20.
107. Pin, Chr., Ortega Cuesta, L.A. & Ibarguchi, J.I., 1992: Mantle-derived, early Paleozoic A-type metagranitoids from the NW Iberian massif: Nd isotope and trace-elements constraints. Bulletin de la Société Géologique de France 163, 483-494.
108. Platt, J.P., 1993: Exhumation of high-pressure rocks: a review of concepts and pro-cesses. Terra Nova 5, 119-133.
109. Quinquis, H. & Choukroune, P., 1981: Les schistes bleus de l’Ile de Groix dans la chaîne hercynienne: implications cinématiques. Bulletin de la Société Géologique de France 7, 23, 409-418.
110. Raumer, J.F. von, 1997: The Pre-Mesozoic Alpine basement: an attempt at reconstruction. Terra Nostra 5, 134-136.
111. Reinhardt, J. & Kleemann, U., 1994: Extensional unroofing of granulitic lower crust and related low-pressure, high-temperature metamorphism in the Saxonian Granulite Massif, Germany. Tectonophysics 238, 71-94.
112. Ribeiro, A., 1974: Contribution à l’étude tectonique de Tras-os-Montes oriental. Memorias dos Serviços Geologicos de Portugal 24, 1-177, 5 tabl., 73 pl., 6 cartes H.T.
113. Ribeiro, M.L., 1976: Consideraçoes sobre uma ocorrencia de crossite em Trasos-Montes oriental. Memorias e Noticias dos Serviços Geologicos de Portugal 83, 1-16.
114. Roig, J.-Y., 1997: Evolution tectono-métamorphique d’un segment de la chaîne hercynienne. Rôle du plutonisme dans la caractérisation des tectoniques du Sud-Limousin (Massf Central Français). Ph.D. thesis, Université d’Orléans. 261 pp.
115. Rodriguez Aller, J.R., Cosca, M. & Gil Ibarguchi, J.I., 1997a: 40Ar/39Ar dating of Hercynian metamorphism in the HP Malpica-Tuy allochthon, Iberian Massif, NW Spain. Terra Nova 9, Abstract supplement 1, abstract 54/5P20.
116. Rodriguez Aller, J.R., Cosca, M., Gil Ibarguchi, J.I & Dallmeyer, R.D., 1997b: Eo-Hercynian HP metamorphism of a subducted continental crust (Malpica-Tuy allochthon, NW Spain): New petrological and age constraints. Fifth eclogite conference, Ascona, Switzerland, September 1997. Terra Nova 9, p. 29.
117. Roger, F. & Schärer, U., 1997: New ages on deep subduction during the Variscan Orogeny: The Bragança Ultramafic-Mafic Complex of N-Portugal. Terra Nova 9, Abstract supplement 1, abstract 07/1P32.
118. Rötzler, J., 1992: Zur Petrogenese im Sächsischen Granulitgebirge. Geotektonische Forschungen 77, 1-100.
119. Santallier, D., Briand, B., Ménot, R.P. & Piboule, M., 1988: Les complexes leptyno-amphiboliques (C.L.A.): revue critique et suggestions pour un meilleur emploi de ce terme. Bulletin de la Société Géologique de France 8, 4, 3-12.
120. Santos Zalduegui, J.F., Schärer, U., Gil Ibargucchi, J.L. & Girardeau, J., 1996: Origin and evolution of the Paleozoic Cabo Ortegal ultramafic-mafic complex (NW Spain): U-Pb, Rb-Sr and Pb-Pb isotope data. Chemical Geology 129, 281-304.
121. Savelieva, G.N. & Nesbitt, R.W., 1996: A synthesis of the stratigraphic and tectonic setting of the Uralian ophiolites. Journal of the Geological Society, London 153, 525-537.
122. Schäfer, H.J., Gebauer, D., Gil Ibarguchi, J.I. & Peucat, J.J., 1993: Ion-microprobe dating on the HP/HT Cabo Ortegal complex (Galica, NW Spain): Preliminary results. Terra Nova 5, Abstract supplement 4, abstract 63.
123. Schermerhorn, L.J.G. & Kotsch, S., 1984: First occurrence of lawsonite in Portugal and tectonic implications. Communicaçoes dos Serviços Geologicos de Portugal 70, 23-29.
124. Schmädicke, E., Okrusch, M. & Schmidt, W., 1992: Eclogite-facies rocks in the Saxonian Erzegebirge, Germany: high pressure metamorphism under contrasting P-T conditions. Contributions to Mineralogy and Petrology 110, 226-241.
125. Schmädicke, E., Mezger, K., Cosca, M. & Okrusch, M., 1995: Variscan Sm/Nd and Ar/Ar ages of eclogite facies rocks from the Erzgebirge, Bohemian Massif. Journal of Metamorphic Geology 13, 537-552.
126. Shatsky, V.S., Jagoutz, E. & Koz’menko, O.K., 1997: Sm-Nd dating of the High-Pressure Metamorphism of the Maksyutov Complex. Transactions of the Russian Academy of Sciences, Earth Science Section 353, 285-288.
127. Smith, D.C., 1988: A review of the peculiar mineralogy of the “Norwegian coesite-eclogite province”, with crystal-chemical and geodynamical notes and an extensive bibliography. In D.C. Smith (ed.): Eclogites and eclogite-facies rocks, 1-206. Elsevier.
128. Smulikowski, W., 1995: Evidence of glaucophane-schist metamorphism in the East Karkonosze complex, West Sudetes, Poland. Geologische Rundschau 84, 720-737.
129. Sobolev, N.V., Dobretsov, N.L., Bakirov, A.B. & Shatsky, S., 1986: Eclogites from various types of metamorphic complexes in the USSR and the problem of their origin. In B.W. Evans & H. Brown (eds.): Blueschists and Eclogites, 349-363. Geological Society of America, Memoir 164.
130. Triboulet, C., 1991: Etude geothermo-barométrique comparée des schistes bleus paléozoïques de l’Ouest de la France (Ile de Groix, Bretagne méridionale et bois de Cené, Vendée). Comptes Rendus de l’Academie des Sciences Paris 312, 1163-1168.
131. Vissers, R.L.M., Platt, J.P. & van der Wal, D., 1995: Late orogenic extension of the Betic Cordillera and the Alboran Domain: a lithospheric view. Tectonics 14, 786-803.
132. Wegen, G. van der, 1978: Garnet-bearing metabasites of the blastomylonitic graben, Western Galicia, Spain. Scripta Geologica 45, 1-95.
133. Williams, P.J., 1983: The geochemistry of ophiolitic mafic rocks from the polymetamorphic Ordenes complex, Spain. Journal of the Geological Society, London 140, 877-882.
134. Willner, A.P., Rötzler, K. & Maresch, V., 1997: Pressure-temperature and fluid evolution of quartzo-feldspathic metamorphic rocks with a relic high-pressure, granulite-facies history from the central Erzgebirge (Saxony, Germany). Journal of Petrology 38, 307-336.
135. Yang, J., Godard, G., Kienast, J.R., Lu, Y. & Sun, J., 1993: Ultra-high-pressure (60 kb) magnesite-bearing garnet peridotites from northeastern Jiangsu, China? Journal of Geology 101, 541-554.