The Southern Variscan Front in the Tinerhir area involves Palaeozoic allochthonous units (Ouaklim and Tilouine units) thrust onto the northern edge of the West African Craton during late Carboniferous time. Illite crystallinity data highlight an anchizonal grade for the Ouaklim Unit, and a diagenesis-anchizone transition for the Tilouine Unit during deformation phase D1. The tectonic stack is crosscut by major dextral reverse faults bounding E-W trending domains of dominant shortening deformation (central domain) and strike-slip deformation (northern and southern domains), later segmented by a network of post-Variscan faults. This complex deformation pattern is the result of kinematic partitioning of dextral transpression along the Southern Variscan Front, coeval with the Neovariscan (300-290 Ma) oblique convergence observed at the scale of the whole Moroccan Variscides. Partitioning of dextral transpression described in the Tinerhir area is consistent with dextral wrench faulting along the Tizi n' Test Fault, and with Appalachian-style south-directed thrusting in the Tinerhir and Bechar-Bou Arfa areas. © 2009 Springer-Verlag.

Cerrina Feroni, A., Ellero, A., Malusa', M., Musumeci, G., Ottria, G., Polino, R., et al. (2010). Transpressional tectonics and nappe stacking along the Southern Variscan Front of Morocco. INTERNATIONAL JOURNAL OF EARTH SCIENCES, 99(5), 1111-1122 [10.1007/s00531-009-0449-x].

Transpressional tectonics and nappe stacking along the Southern Variscan Front of Morocco

MALUSA', MARCO GIOVANNI;
2010

Abstract

The Southern Variscan Front in the Tinerhir area involves Palaeozoic allochthonous units (Ouaklim and Tilouine units) thrust onto the northern edge of the West African Craton during late Carboniferous time. Illite crystallinity data highlight an anchizonal grade for the Ouaklim Unit, and a diagenesis-anchizone transition for the Tilouine Unit during deformation phase D1. The tectonic stack is crosscut by major dextral reverse faults bounding E-W trending domains of dominant shortening deformation (central domain) and strike-slip deformation (northern and southern domains), later segmented by a network of post-Variscan faults. This complex deformation pattern is the result of kinematic partitioning of dextral transpression along the Southern Variscan Front, coeval with the Neovariscan (300-290 Ma) oblique convergence observed at the scale of the whole Moroccan Variscides. Partitioning of dextral transpression described in the Tinerhir area is consistent with dextral wrench faulting along the Tizi n' Test Fault, and with Appalachian-style south-directed thrusting in the Tinerhir and Bechar-Bou Arfa areas. © 2009 Springer-Verlag.
No
Articolo in rivista - Articolo scientifico
Scientifica
Eastern Anti-Atlas; Illite crystallinity; Morocco; Southern Variscan Front; Strain partitioning; Transpressional deformation; Variscan tectonics;
English
1111
1122
12
Cerrina Feroni, A., Ellero, A., Malusa', M., Musumeci, G., Ottria, G., Polino, R., et al. (2010). Transpressional tectonics and nappe stacking along the Southern Variscan Front of Morocco. INTERNATIONAL JOURNAL OF EARTH SCIENCES, 99(5), 1111-1122 [10.1007/s00531-009-0449-x].
Cerrina Feroni, A; Ellero, A; Malusa', M; Musumeci, G; Ottria, G; Polino, R; Leoni, L
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/5237
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