Transpressional tectonics and Carboniferous magmatism in the Limousin, Massif Central, France: Structural and <sup>40</sup>Ar/<sup>39</sup>Ar investigations
dc.contributor.author | Gébelin, A | en |
dc.contributor.author | Brunel, M | en |
dc.contributor.author | Monié, P | en |
dc.contributor.author | Faure, M | en |
dc.contributor.author | Arnaud, N | en |
dc.date.accessioned | 2017-03-14T15:31:45Z | |
dc.date.available | 2017-03-14T15:31:45Z | |
dc.date.issued | 2007-04-01 | en |
dc.identifier.issn | 0278-7407 | en |
dc.identifier.uri | http://hdl.handle.net/10026.1/8624 | |
dc.description.abstract |
New structural, microstructural, and 40Ar/39 Ar data from the NW Massif Central (France) provide additional constraints on the timing and tectonic setting of late Variscan granite magmatism. Previous studies had emphasized the role of late orogenic extension in the emplacement of granite plutons in the Limousin region. In contrast, the new data set is consistent with syntectonic emplacement of magma in a dextral simple shear active from 350 to 300 Ma in a transpressional regime. As an alternative hypothesis to late orogenic extension, we propose that magmas migrated into tensional bridges between active P shears associated with a lithospheric shear zone comparable to a pop-up structure. The Galician region, in the western end of the Ibero-Armorican tectonic arc, exhibits major left-lateral ductile shear zones which can be interpreted as conjugate structures to the Limousin and Armorican shear zones. Copyright 2007 by the American Geophysical Union. | en |
dc.language.iso | en | en |
dc.title | Transpressional tectonics and Carboniferous magmatism in the Limousin, Massif Central, France: Structural and <sup>40</sup>Ar/<sup>39</sup>Ar investigations | en |
dc.type | Journal Article | |
plymouth.issue | 2 | en |
plymouth.volume | 26 | en |
plymouth.publication-status | Published | en |
plymouth.journal | Tectonics | en |
dc.identifier.doi | 10.1029/2005TC001822 | en |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences | |
dc.rights.embargoperiod | Not known | en |
rioxxterms.versionofrecord | 10.1029/2005TC001822 | en |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | en |
rioxxterms.type | Journal Article/Review | en |