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International Journal of Earth Sciences

, Volume 95, Issue 2, pp 306–317 | Cite as

New Early Permian paleomagnetic results from the Brive basin (French Massif Central) and their implications for Late Variscan tectonics

  • Yan ChenEmail author
  • Bernard Henry
  • Michel Faure
  • Jean-François Becq-Giraudon
  • Jean-Yves Talbot
  • Lucien Daly
  • Maxime Le Goff
Original Paper

Abstract

In order to assess the structural evolution of the Brive basin and the Paleozoic activity of surrounding major faults in the French Massif Central, we carried out a paleomagnetic study on Early Permian rocks from this basin. Positive-fold tests and solely reversed polarities indicate that the characteristic remanent magnetization is likely to be primary. Early Permian tilt-corrected site mean declinations vary from 207°–167° indicating that the Brive basin experienced internal vertical-axis rotations. On the contrary, Late Permian paleomagnetic site means exhibit a circular Fisherian distribution showing no relative rotations. Detailed analyses of Permian paleomagnetic data from five contemporaneous basins of the French Massif Central reveal that these basins share the same equatorial paleolatitude with stable Europe throughout the Permian. However, in Early Permian, three of the five basins experienced differential rotations. The Saint-Affrique basin not only suffered internal deformation during the Early Permian, but the basin as a whole underwent a full-scale counterclockwise vertical-axis block rotation with respect to stable Europe. As a consequence, paleomagnetic data from similar late orogenic basins have to be thus carefully considered for establishment of Apparent Polar Wander paths.

Keywords

Brive basin French Massif Central Paleomagnetism Permian Stable Europe 

Notes

Acknowledgements

This work was supported by the GéoFrance 3D program program and by Geodynamics of the internal Earth of International Innovative Team Project of Chinese Academy of Scicens. We are very grateful to H. Waldhör, J.-P. Cogné, J.-Cl. Soula and an anonymous reviewer for constructive and helpful comments. We present our thanks to Dr. S. Gilder for improving the manuscript.

References

  1. Arthaud F, Laurent PH (1995) Contraintes, déformation et déplacement dans l’avant-pays Nord Pyrénéen du Languedoc méditerranéen. Geodinamica Acta 8:142–157Google Scholar
  2. Autran A, Cogné J (1980) La zone interne de l’orogène varisque dans l’ouest de la France. Mém BRGM 108:90–111Google Scholar
  3. Blès JL, Bonijoly D, Castaining C, Fros Y (1989) Successive post-Variscan stress fields in French Massif Central and its borders (Western European plate): comparison with geodynamic data. Tectonophysics 169:79–111CrossRefGoogle Scholar
  4. Bourges P (1987) Sédimentation alluviale et tectonique extensive dans le Permien du détroit de Rodez, Thesis, Toulouse, p 186Google Scholar
  5. BRGM (1989) Synthèse géologique des bassins permiens français Ed BRGM 128:288Google Scholar
  6. Broutin J, Doubinger J, Langiaux J, Primel D (1986) Conséquences de la coexistence de flores à caractères stéphaniens et autuniens dans les bassins limniques d’Europe occidentale. Mem Soc Géol France 149:15–25Google Scholar
  7. Chen Y, Faure M, Cogné J-P (1997) Late Permian paleomagnetic results from the Brive basin (massif Central, France). Tectonophysics 281:209–220CrossRefGoogle Scholar
  8. Cogné J-P (2003) A MacintoshTM application for treating paleomagnetic data and making plate reconstructions. Geochem Geophys Geosyst 4:1007 DOI:10.1029/2001GC000227Google Scholar
  9. Cogné J-P, Brun JP, Van Den Driessche J (1990) Paleomagnetic evidence for rotation during Stephano-Permian extension in southern Massif Central (France). Earth Planet Sci Lett 101:272–280CrossRefGoogle Scholar
  10. Cogné J-P, Van Den Driessche J, Brun J-P (1993) Syn-extension rotations in the Permian SaintAffrique basin (Massif Central, France): paleomagnetic constraints. Earth Planet Sci Lett 115:29–42CrossRefGoogle Scholar
  11. Demarest HH (1983) Error analysis for the determination of tectonic rotation from paleomagnetic data. J Geophys Res 88:4321–4328Google Scholar
  12. Dewey J, Burke KC (1988) Tibetan, Variscan and Precambrian basement reactivation: products of continental collision. J Geol 81:683–692Google Scholar
  13. Diego-Orozco A, Henry B (1993) Paleomagnetic results from the Permian Saint-Affrique basin (France) and implication for late and post-Hercynian tectonics. Tectonophysics 227:31–47CrossRefGoogle Scholar
  14. Diego-Orozco A, Henry B (1998) Données paléomagnétiques du bassin permien de Rodez et rotations dans la bordure sud-ouest du Massif central. C R Acad Sci Paris 327:225–229Google Scholar
  15. Diego-Orozco A, Chen Y, Henry B, Becq-Giraudon F (2002) Paleomagnetic results from Permian Rodez basin implications: the late Variscan tectonics in the southern French Massif Central. Geodynamica Acta 15:249–260CrossRefGoogle Scholar
  16. Doubinger J (1956) Contribution à l’étude des flores autuno-stèphaniennes. Mém Soc Géol France 5:75Google Scholar
  17. Dunlop D Özdemir Ö (1997) Rock magnetism. Cambridge University press, p 576Google Scholar
  18. Faure M (1995) Late orogenic Carboniferous extensions in the Variscan French Massif Central. Tectonics14:132–153CrossRefGoogle Scholar
  19. Feys R (1978) Le Permien et la phase saalienne dans le bassin de Brive (SW de la France). In: Falke H (eds) “The continental Permian in the Central, West and South Europe". Reidel Publishing Company, Dordrecht, Holland, pp 80–90Google Scholar
  20. Feys R (1989) Le bassin de Brive: in Synthèse géologique des bassins permiens français. Mém BRGM 128:78–84Google Scholar
  21. Feys R, Guillot PL, Lefavrais A (1979) Tectonique du bassin de Brive. Bull BRGM 1:121–130Google Scholar
  22. Fisher R (1953) Dispersion on a sphere. Proc R Soc Lond 217:295–305Google Scholar
  23. Grolier J, Letourneur J (1968) L’évolution tectonique du Grand Sillon Houiller du Massif Central français. Proc 23rd Int Geol Cong I:107–116Google Scholar
  24. Henry B (1988) Possibilitès et limites de la méthode paléomagnétique pour les corrélations stratigraphiques. 3éme Journées thém Assoc Géol Permien, ParisGoogle Scholar
  25. Henry B, Becq-Giraudon F, Rouvier H (1999) Paleomagnetic studies in the Permian basin of Largentière and implications for the Late Variscan rotations in the French Massif Central. Geophys J Int 138:188–198CrossRefGoogle Scholar
  26. Henry B, Rouvier H, Le Goff M (2004) Using syntectonic remagnetizations for fold geometry and vertical axis rotation: example of the Cévennes border (France). Geophys J Int 157:1061–1070CrossRefGoogle Scholar
  27. Jelinek V (1981) Characterization of the magnetic fabric of rocks. Tectonophysics 79:63–67CrossRefGoogle Scholar
  28. Kirschvink JL (1980) The least squares line and the analysis of paleomagnetic data. Geophys J R Astron Soc 62:699–718Google Scholar
  29. Lefavrais-Raymond A, Freys R (1976) Carte géologique de la France à 1/50 000 Brive-la-Gaillard. BRGM editionGoogle Scholar
  30. Matte P (1986). La chaîne varisque parmi les chaînes paléozoïques péri-atlantiques modèle d’évolution et position des grands blocks continentaux au Permo-Carbonifère. Bull Soc Gèol Fr 8:9–24Google Scholar
  31. McElhinny MW (1964) Statistical significance of the fold test in paleomagnetism. Geophys J R astron Soc 8:338–340Google Scholar
  32. McElhinny MW, Powell CMcA, Pisarevsky SA (2003) Paleozoic terranes of eastern Australia and the drift history of Gondwana. Tectonophysics 362:41–65CrossRefGoogle Scholar
  33. McFadden PL (1990)A new fold test for palemagnetic studies. Geophys J Int 103:163–169Google Scholar
  34. McFadden PL (1998)The fold test as an analytical tool. Geophys J Int 135:329–338CrossRefGoogle Scholar
  35. Mérabet N, Guillaume A (1988) Palaeomagnetism of the Permian rocks of Lodève (Hérault, France). Tectonophysics 145:21–29CrossRefGoogle Scholar
  36. Van der Voo R (1990) Phanerozoic paleomagnetic poles from Europe and North America and comparisons with continental reconstructions. Rev Geophys 28:167–206Google Scholar
  37. Watson G, Enkin R (1993) The fold test in paleomagnetism as a parameter estimation problem. Geophys Res Lett 20:2135–2137Google Scholar
  38. Zeiller R (1892) Bassin houiller et permien de Brive. Et. Gîtes minéraux France II. Flore fossileGoogle Scholar
  39. Zijderveld JDA (1967) Demagnetization of rocks: analysis of results. In: Collision DW, Créer KM, Runcorn SK (eds) Methods in Paleomagnetism, pp 254–286Google Scholar

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Yan Chen
    • 1
    Email author
  • Bernard Henry
    • 2
  • Michel Faure
    • 1
  • Jean-François Becq-Giraudon
    • 3
  • Jean-Yves Talbot
    • 1
  • Lucien Daly
    • 2
  • Maxime Le Goff
    • 2
  1. 1.Institut des Sciences de la Terre d’OrléansUniversité d’OrléansOrléans cedex 02France
  2. 2.Géomagnétisme et PaléomagnétismeIPGP and CNRSSaint Maur cedexFrance
  3. 3.BRGM-DR/MGGOrléans cedex 02France

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