Progressive deformation of a zone of magma transfer in a transpressional regime: The Variscan Mérens shear zone (Pyrenees, France)

Journal of Structural Geology

Volumn 30, Issue 9, 2008, Pages 1138-1149

  Denèle, Yoann ^a   Olivier, Philippe ^a   Gleizes, Gérard ^a  

^a UNIVERSITÉ DE TOULOUSE   (France)

Author keywords

AMS analysis; Granite; M rens; Mylonitic shear zone; Pyrenees; Transpression; Variscan

Indexed keywords

AMS ANALYSIS; ANISOTROPY OF MAGNETIC SUSCEPTIBILITY; GRANITE; MYLONITIC DEFORMATION; MYLONITIC SHEAR ZONE; MYLONITIZATION; PLUTONIC ROCKS; PLUTONS; PROGRESSIVE DEFORMATION; PYRENEES; SHEAR ZONES; SOUTH-TO-NORTH; TRANSFER ZONES; TRANSPRESSION; VARISCAN;

CRYSTALLOGRAPHY; MAGNETIC ANISOTROPY; MAGNETIC PROPERTIES; MAGNETIC SUSCEPTIBILITY; OXIDE MINERALS; QUARTZ; SATELLITE GROUND STATIONS; STRUCTURAL GEOLOGY;

DEFORMATION;

DEFORMATION MECHANISM; DOME; EMPLACEMENT; FOLIATION; HERCYNIAN OROGENY; KINEMATICS; MAGMA CHAMBER; MAGNETIC ANISOTROPY; MYLONITIZATION; SHEAR BAND; SHEAR ZONE; TRANSPRESSION;

EURASIA; EUROPE; FRANCE; PYRENEES; WESTERN EUROPE;

EID: 49949087775     PISSN: 01918141     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jsg.2008.05.006     Document Type: Article

References (53)

1. Auréjac J.-B., Gleizes G., Diot H., and Bouchez J.L. Le complexe granitique de Quérigut (Pyrénées, France) ré-examiné par la technique de l'ASM: un pluton syntectonique de la transpression dextre hercynienne. Bulletin de la Société géologique de France 175 (2004) 157-174
2. Barnolas A., and Chiron J.C. Synthèse géologique et géophysique des Pyrénées. Introduction. Géophysique. Cycle hercynien (1996), BRGM/ITGE, Orléans/Madrid
3. Benn K., Roest W.R., Rochette P., Evans N.G., and Pignotta G.S. Geophysical and structural signatures of syntectonic batholith construction: the South Mountain Batholith, Meguma Terrane, Nova Scotia. Geophysical Journal International 136 (1999) 144-158
4. Besson M. Neuf coupes à travers le massif de l'Aston. Géologie de la France 4 (1994) 21-33
5. Borradaile G.J., and Henry B. Tectonic applications of magnetic susceptibility and its anisotropy. Earth-Science Reviews 42 (1997) 49-93
6. Bouchez J.L. Granite is never isotropic: an introduction to AMS studies of granitic rocks. In: Bouchez J.-L., Hutton D.H.W., and Stephens W.E. (Eds). Granite: From Segregation of Melt to Emplacement Fabrics (1997), Kluwer Academic Publishers, Dordrecht 95-112
7. Bouchez J.L. Anisotropie de susceptibilité magnétique et fabrique des granites. Comptes Rendus de l'Académie des Sciences, Paris 330 (2000) 1-14
8. Bouchez J.L., and Gleizes G. Two-stage deformation of the Mont-Louis Andorra granite pluton (Variscan Pyrenees) inferred from magnetic susceptibility anisotropy. Journal of the Geological Society, London 152 (1995) 669-679
9. Brown M., and Solar G.S. Shear zone systems and melts: feedback relations and self-organization in orogenic belts. Journal of Structural Geology 20 (1998) 211-227
10. Brown M., and Solar G.S. Granite ascent and emplacement during contractional deformation in convergent orogens. Journal of Structural Geology 20 (1998) 1365-1393
11. Brown M., and Solar G.S. The mechanism of ascent and emplacement of granite magma during transpression: a syntectonic granite paradigm. Tectonophysics 312 (1999) 1-33
12. Carreras J., and Cirés J. The geological significance of the western termination of the Mérens fault at Port Vell (Central Pyrenees). Tectonophysics 129 (1986) 99-114
13. Crawford M.L., Klepeis K.A., Gehrels G., and Isachsen C. Batholith emplacement at mid-crustal levels and its exhumation within an obliquely convergent margin. Tectonophysics 312 (1999) 57-78
14. Dell'Angelo L.N., and Tullis J. Experimental deformation of partially melted granitic aggregates. Journal of Metamorphic Geology 6 (1988) 495-516
15. Deloule E., Alexandrov P., Cheilletz A., Laumonier B., and Barbey P. In-situ U-Pb zircon ages for Early Ordovician magmatism in the eastern Pyrenees, France: the Canigou orthogneisses. International Journal of Earth Sciences (Geologische Rundschau) 91 (2002) 398-405
16. Denèle Y., Olivier Ph., Gleizes G., and Barbey P. The Hospitalet gneiss dome (Pyrenees) revisited: lateral flow during Variscan transpression in the middle crust. Terra Nova 19 (2007) 445-453
17. D'Lemos R.S., Brown M., and Strachan R.A. Granite magma generation, ascent and emplacement within a transpressional orogen. Journal of the Geological Society, London 149 (1992) 487-490
18. Druguet E., and Hutton D.H.W. Syntectonic anatexis and magmatism in a mid-crustal transpressional shear zone: an example from the Hercynian rocks of the eastern Pyrenees. Journal of Structural Geology 20 (1998) 905-916
19. Evans N.G., Gleizes G., Leblanc D., and Bouchez J.-L. Hercynian tectonics in the Pyrenees: a new view based on structural observations around the Bassiès granite pluton. Journal of Structural Geology 19 (1997) 195-208
20. Ferré E., Gleizes G., and Caby R. Obliquely convergent tectonics and granite emplacement in the Trans-Saharan belt of Eastern Nigeria: a synthesis. Precambrian Research 114 (2002) 199-219
21. Gleizes G., Leblanc D., and Bouchez J.-L. Le pluton granitique de Bassiès (Pyrénées ariégeoises): zonation, structure et mise en place. Comptes Rendus de l'Académie des Sciences, Paris 312 (1991) 755-762
22. Gleizes G., Nédélec A., Bouchez J.L., Autran A., and Rochette P. Magnetic susceptibility of the Mont-Louis Andorra ilmenite-type granite (Pyrenees): a new tool for the petrographic characterization and regional mapping of zoned granite plutons. Journal of Geophysical Research 98 (1993) 4317-4331
23. Gleizes G., Leblanc D., Santana V., Olivier Ph., and Bouchez J.-L. Sigmoidal structures featuring dextral shear during emplacement of the Hercynian granite complex of Cauterets-Panticosa (Pyrenees). Journal of Structural Geology 20 (1998) 1229-1245
24. Gleizes G., Leblanc D., Olivier Ph., and Bouchez J.-L. Strain partitioning in a pluton during emplacement in transpressional regime: the example of the Néouvielle granite (Pyrenees). International Journal of Earth Sciences (Geologische Rundschau) 90 (2001) 325-340
25. Gleizes G., Crevon G., Asrat A., and Barbey P. Structure, age and mode of emplacement of the Hercynian Bordères-Louron pluton (Central Pyrenees, France). International Journal of Earth Sciences (Geologische Rundschau) 95 (2006) 1039-1052
26. Hand M., and Dirks P.H.G.M. The influence of deformation on the formation of axial-planar leucosomes and the segregation of small melt bodies within the migmatitic Napperby Gneiss, central Australia. Journal of Structural Geology 14 (1992) 591-604
27. Hutton. Granite emplacement mechanisms and tectonic controls: inferences from deformation studies. Transactions of the Royal Society of Edinburg: Earth Sciences 79 (1988) 245-255
28. Hutton D.H.W. Syntectonic granites and the principle of effective stress: a general solution to the space problem?. In: Bouchez J.-L., Stephens W.E., and Hutton D.W.H. (Eds). Granite: From Melt Segregation to Emplacement fabrics (1997), Kluwer Academic Publishers 189-197
29. Jelinek V. Characterization of the magnetic fabric of rocks. Tectonophysics 79 (1981) 563-567
30. Koukouvelas I., Pe-Pipper G., and Piper D.J.W. The role of dextral transpressional faulting in the evolution of an early Carboniferous mafic-felsic plutonic and volcanic complex: Cobequid Highlands, Nova Scotia, Canada. Tectonophysics 348 (2002) 219-246
31. Leblanc D., Gleizes G., Roux L., and Bouchez J.-L. Variscan dextral transpression in the French Pyrenees: new data from the Pic des Trois-Seigneurs granodiorite and its country rocks. Tectonophysics 261 (1996) 331-345
32. 39Ar cooling ages of the eastern Mont-Louis granite massif (Eastern Pyrenees, France). Comptes Rendus Geoscience 336 (2004) 1091-1098
33. Mc Caig A.M. Fluid-rock interaction in some shear zones from the Pyrenees. Journal of Metamorphic Geology 2 (1984) 129-141
34. Mezger J.E., Passchier C.W., and Régnier J.-L. Metastable staurolite-cordierite assemblage of the Bossòst dome: Late Variscan decompression and polyphase metamorphism in the axial zone of the central Pyrenees. Comptes Rendus Géoscience 336 (2004) 827-837
35. Olivier Ph., Gleizes G., and Paquette J.-L. Gneiss domes and granite emplacement in an obliquely convergent regime: new interpretation of the Variscan Agly Massif (Eastern Pyrenees, France). In: Whitney D.L., Teyssier C., and Siddoway C.S. (Eds). Gneiss Domes in Orogeny. Geological Society of America, Special Paper vol. 380 (2004) 229-242
36. Olivier Ph., Gleizes G., Paquette J.-L., and Muñoz Sáez C. Structure and U-Pb dating of the Saint-Arnac pluton and the Ansignan charnockite (Agly Massif): a cross-section from the upper to the middle crust of the Variscan Eastern Pyrenees. Journal of the Geological Society, London 164 (2007) 1-12
37. Paquette J.-L., Gleizes G., Leblanc D., and Bouchez J.-L. Le granite de Bassiès (Pyrénées): un pluton syntectonique d'âge westphalien. Géochronologie U-Pb sur zircons. Comptes Rendus de l'Académie des Sciences, Paris 324 (1997) 387-392
38. Rabinowicz M., and Vigneresse J.L. Melt segregation under compaction and shear channelling: application to granitic magma segregation in a continental crust. Journal of Geophysical Research B109 (2004) 10.1029/2002JB002372
39. Raguin E. Le massif de l'Aston dans les Pyrénées de l'Ariège. Bulletin du BRGM 2 (1977) 89-119
40. Roberts M.P., Pin C., Clemens J.D., and Paquette J.L. Petrogenesis of mafic to felsic plutonic rock associations: the calc-alkaline Quérigut complex, French Pyrenees. Journal of Petrology 41 (2000) 809-844
41. Rochette P. Magnetic susceptibility of the rock matrix related to magnetic fabric studies. Journal of Structural Geology 9 (1987) 1015-1020
42. Román-Berdiel T., Gapais D., and Brun J.P. Granite intrusion along strike-slip zones in experiment and nature. American Journal of Science 297 (1997) 651-678
43. Román-Berdiel T., Casas A.M., Oliva-Urcia B., Pueyo E.L., and Rillo C. The main Variscan deformation event in the Pyrenees: new data from the structural study of the Bielsa granite. Journal of Structural Geology 26 (2004) 659-677
44. Romeo I., Capote R., Tejero R., Lunar R., and Quesada C. Magma emplacement in transpression: the Santa Olalla Igneous Complex (Ossa-Morena Zone, SW Iberia). Journal of Structural Geology 28 (2006) 1821-1834
45. Rosenberg C.L., Berger A., and Schmid S.M. Observations from the floor of a granitoid pluton: inferences on the driving force of final emplacement. Geology 23 (1995) 443-446
46. Rushmer T. Melt segregation in the lower crust: how have experiments helped us?. Transactions of the Royal Society of Edinburgh: Earth Sciences 97 (1996) 73-83
47. Rutter E.H., and Neumann D.H.K. Experimental deformation of partially molten Westerly granite under fluid-absent conditions with implications for the extraction of granitic magmas. Journal of Geophysical Research 100 B8 (1995) 15697-15716
48. e cycle thesis, Paris 7 Univ., 291 pp.
49. Saint-Blanquat M.d., Tikoff B., Teyssier C., and Vigneresse J.L. Transpressional kinematics and magmatic arcs. In: Holdsworth R.E., Strachan R.A., and Dewey J.F. (Eds). Continental Transpressional and Transtensional Tectonics. Geological Society, London, Special Publications vol. 135 (1998) 327-340
50. Soliva J., Salel J.F., and Brunel M. Shear deformation and emplacement of the gneissic Canigou thrust nappe (Eastern Pyrenees). Geologie en Mijnbouw 68 (1989) 357-366
51. Tikoff B., and Saint-Blanquat M.d. Transpressional shearing and strike-slip partitioning in the Late Cretaceous Sierra Nevada magmatic arc, California. Tectonics 16 (1997) 442-459
52. Tikoff B., and Teyssier C. Crustal-scale, en echelon "P-shear" tensional bridges: a possible solution to the batholithic room problem. Geology 20 (1992) 927-930
53. Vielzeuf D. Les massifs nord-pyrénéens à soubassement granulitique. In: Barnolas A., and Chiron J.C. (Eds). Synthèse géologique et géophysique des Pyrénées. Introduction. Géophysique. Cycle hercynien vol. 1 (1996), BRGM/ITGE 502-521