Academic literature on the topic 'Roches – Fracturation – Rif (Maroc ; massif)'
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Journal articles on the topic "Roches – Fracturation – Rif (Maroc ; massif)":
Barhi, Hassan, Jamal Eddine Stitou El Messari, and Mohamed Reda Oulad Mansour. "Apport de la Fracturation et des Méthodes d’analyses Statistiques à l’etude Hydrogéochimique des Eaux Souterraines du Massif Calcareux de la Région de Tlata Taghramt, Chaîne Calcaire du Haouz (Rif Septentrional, Maroc)." European Scientific Journal, ESJ 18, no. 33 (October 31, 2022): 207. http://dx.doi.org/10.19044/esj.2022.v18n33p207.
Barhi, Hassan, Jamal Eddine Stitou El Messari, and Mohamed Reda Oulad Mansour. "Apport de L’hydrochimie, la Fracturation et des Méthodes D’analyses Statistiques pour Caractériser les Eaux Souterrains du Massif Calcareux de la Région de Tlata Taghramt, Chaîne Calcaire du Haouz (Rif Septentrional, Maroc)." European Scientific Journal ESJ 9 (October 6, 2022). http://dx.doi.org/10.19044/esipreprint.9.2022.p785.
Dissertations / Theses on the topic "Roches – Fracturation – Rif (Maroc ; massif)":
Abakarim, Abdennacer. "Etude géologique de la partie occidentale de la rive sud du détroit de Gibraltar (Rif, Maroc) dans le cadre de la liaison fixe Europe-Afrique." Pau, 1991. http://www.theses.fr/1991PAUU3014.
El, Khattabi Mohamed. "Etude et gestion des risques liés aux glissements de terrain en milieu urbain : application à la ville d'Al Hoceima (Nord du Maroc)." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN047.
Landslides represent highly hazardous phenomena influenced by various parameters and criteria commonly observed in different locations worldwide. Managing them proves challenging, especially in urban areas, due to the risks they pose to the population and structures, as well as the complexities involved in implementing corrective measures. This thesis focuses on landslide studies applied to the city of Al Hoceima in northern Morocco. The objective is to analyze their origins or reactivation, the predisposing factors triggering them, and to understand the mechanisms at play.To tackle this challenge, a methodology based on analyzing ground movements through a multidisciplinary approach, incorporating geology, hydrogeochemistry, and geotechnics, proved essential. The analysis of the studied slope reveals a complex morphology resulting from geology characterized by tectonic activity and often-altered lithology. Geotechnically, this translates into mechanical characteristics ranging from weak to moderate, further decreasing under the influence of water. Intense tectonic activity has resulted in faults and fractures that have structured the slope, creating block structures that further weaken the terrain. Inclinometric measurements localized sliding planes at average depths ranging from 15 meters to 25 meters. These measurements also revealed relative movements of blocks during sliding. Chemical analysis of groundwater indicates the presence of sodium sulfates, occasionally mixed with sodium chloride, indicating leaching of autochthonous formations (Triassic-Liassic and Jurassic), exacerbated by the influence of the rising water table. Additionally, wastewater, constituting additional volumes, further disrupts the slope's equilibrium by infiltrating from the surface, as evidenced by the detection of nitrates in the analyzed waters.These results prompted the implementation of simulations to deepen the understanding of landslide mechanisms. A model considering geological discontinuities and analyzing deformations, displacements, and friction within fractures was employed, primarily focusing on landslide-prone areas. This modeling confirmed the conclusions drawn from the analytical phase of the study while facilitating the planning of corrective actions
El, Atrassi Fatima. "Les pyroxénites à grenat du massif de péridotites de Beni Bousera (Rif, Maroc) : marqueurs de l'évolution magmatique et métamorphique d'un corps mantellique en voie d'exhumation." Paris 6, 2012. http://www.theses.fr/2012PA066183.
The petrological study of garnet pyroxenites from the orogenic Beni Bousera massif (Rif, Morocco) brings important constraints on the conditions of its uplift. The garnet pyroxenites which contain graphite aggregates formed at asthenospheric levels, as indicated by the preservation of submicrometric diamonds in these aggregates. The original macrodiamonds belonged to the primary paragenesis along with garnet and pyroxenes as indicated by the composition of silicate inclusions now included in the aggregates. The primary silicates record temperatures in the order of 1200°C but could have formed at higher temperature. A first stage of uplift in the asthenosphere probably led to the graphitization of diamond. Further on, within a thinned and hot lithosphere (80-100 km thick), primary clinopyroxene first decomposed into lamellar Cpx and Opx before garnets were further exsolved. The growth of these secondary garnets took place below the blocking temperature of Mg-Fe exchanges between garnet and pyroxenes (ca. 1050°C at 15-20 kbar). Symplectite rims formed around garnet while the massif reached the lower crustal levels composed of kinzigite, at a depth of around 30-40 km. A late heating event led to partial melting of the pyroxenites as evidenced by the presence of silicate films preserved in the graphite aggregates and the occurrence of interstitial amphibole and plagioclase. Previous events of mantle metasomatism are testified by the presence of amphibole and phlogopite in a garnet websterite and in a spinel peridotite