Deformation and displacement from shear zone patterns in the Variscan upper crust, Jebilet, Morocco

Essaifi, Abderrahim; Lagarde, Jean‐Louis; Capdevila, Ramon Buxó i

doi:10.1016/s0899-5362(01)90101-0

Cited by 36 publications

(65 citation statements)

References 32 publications

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“…The lowest temperatures recorded in the intrusions correspond to the low greenschist facies, i.e. to the regional metamorphism in the country rocks (Essaifi et al, 2001a).…”

Section: Deformation and Hydrothermal Alterationmentioning

confidence: 95%

The hydrothermal system of Central Jebilet (Variscan Belt, Morocco): A genetic association between bimodal plutonism and massive sulphide deposits?

Essaifi

Hibti

2008

Journal of African Earth Sciences

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“…The lowest temperatures recorded in the intrusions correspond to the low greenschist facies, i.e. to the regional metamorphism in the country rocks (Essaifi et al, 2001a).…”

Section: Deformation and Hydrothermal Alterationmentioning

confidence: 95%

The hydrothermal system of Central Jebilet (Variscan Belt, Morocco): A genetic association between bimodal plutonism and massive sulphide deposits?

Essaifi

Hibti

2008

Journal of African Earth Sciences

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“…Selon ces auteurs, les magmas acides sont co-génétiques des magmas basiques, et résul-tent de la différenciation d'une suite tholéïtique d'affinité océanique dans un contexte distensif de type rift continental. L'analyse structurale de la mise en place de ces diverses intrusions est plutôt en faveur d'une mise en place synchrone de la déformation majeure (Essaifi et al, 1995(Essaifi et al, , 2001. Il s'agirait d'une suite tholéïtique et calcoalcaline mise en place dans un contexte décrochant.…”

Section: Les Jebilet Orientalesunclassified

Tectono-Sedimentary and magmatic evolution of the Upper Visean basins of Azrou-Khénifra and eastern Jebilet (Moroccan Meseta)

Bamoumen¹,

Aarab²,

Soulaı̈mani³

2008

Estud. geol.

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During Upper Visean times, the eastern mesetian basins of eastern Jebilet and Azrou Khenifra show great tectono-sedimentary and magmatic evolution similarities. Their deposits record large instabilities and disorganization with huge thickness and lithological variations, related to a synsedimentary tectonic context. At the same time, tilted block tectonics affect the basement of these basins, controlled by bordering transfert faults. Basic dominant magmatic bodies set up in these basins. Their continental alkaline chemical characteristics are consistent with the regional geodynamic context in this area. Initiated along the transitional zone between eastern and western Meseta, the Azrou-Khenifra and Jebilet basins correspond to intracontinental throws, initiated on and controlled by major strike-slip faults. Their evolution is most likely earlier in time and of a weak opening rate than the neighboring western Meseta basins.

Au Viséen supérieur, les bassins mesetiens des Jebilet orientales et dâ€™Azrou Khénifra montrent de grandes similitudes de leur évolution tectono-sédimentaire et magmatiques. Leurs dépôts enregistrent de grandes instabilités liées à une tectonique syn-sédimentaire responsable localement dâ€™une intense désorganisation et de grandes variations de faciès et dâ€™épaisseurs. Ces instabilités sont engendrées par une tectonique en blocs basculés qui affecte le substratum anté-Viséen, contrôlée par des accidents bordiers sub-verticaux à forte composante transcurrente. Des corps magmatiques, pour lâ€™essentiel basiques, se mettent en place dans ces bassins. Ils présentent des caractères chimiques des séries magmatiques alcalines mise en place dans un contexte intracontinental et anorogénique. Initiés le long de la zone de transition entre la Meseta orientale et occidentale, les bassins dâ€™Azrou-Khénifra et des Jebilet orientales correspondent à des sillons intracontinentaux, initiés et contrôlés par des décrochements. Leur évolution est sans doute plus précoce et montre un faible taux dâ€™ouverture que celui enregistré dans les bassins adjacents de la meseta occidentale

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“…The most important deformations are located in the Rehamna massif, where they are associated to a medium-grade metamorphism (kyanite-staurotide). This culmination of the metamorphic grade and of the associated deformation has been related to a high thermal gradient during the deformation that combined ductile thrusts and wrenchfaulting Lagarde and Michard, 1986;Piqué and Michard, 1989;Essaifi et al, 2001). Moreover, the piling up of symmetamorphic nappes or slices likely played a role in the burial of the Palaeozoic rocks (Corsini et al, 1988b;Diot, 1989).…”

Section: The Central Mesetamentioning

confidence: 99%

The Moroccan Hercynides

Hoepffner

Soulaı̈mani

Piqué³

2005

Journal of African Earth Sciences

202

127

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Deformation and displacement from shear zone patterns in the Variscan upper crust, Jebilet, Morocco

Cited by 36 publications

References 32 publications

The hydrothermal system of Central Jebilet (Variscan Belt, Morocco): A genetic association between bimodal plutonism and massive sulphide deposits?

The hydrothermal system of Central Jebilet (Variscan Belt, Morocco): A genetic association between bimodal plutonism and massive sulphide deposits?

Tectono-Sedimentary and magmatic evolution of the Upper Visean basins of Azrou-Khénifra and eastern Jebilet (Moroccan Meseta)

The Moroccan Hercynides

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