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

Content Provider	Springer Nature Link
Author	Chen, Yan Henry, Bernard Faure, Michel Becq Giraudon, Jean François Talbot, Jean Yves Daly, Lucien Goff, Maxime Le
Copyright Year	2006
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.
Starting Page	306
Ending Page	317
Page Count	12
File Format	PDF
ISSN	14373254
Journal	International Journal of Earth Sciences
Volume Number	95
Issue Number	2
e-ISSN	14373262
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-01-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Brive basin French Massif Central Paleomagnetism Permian Stable Europe
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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