Youssef Daafi

OCP Group

The Sidi Bou Othmane (SBO) pegmatite district is situated in the Central Jebilet massif, Western Meseta domain, Morocco. The SBO district is hosted essentially in a volcano-sedimentary series composed of Late-Devonian Sarhlef shales. Pegmatite bodies crop out as dykes, which are oriented from N-S to E-W and are generally variably deformed with duct...

This research applies remote sensing methodologies for the first time to comprehensively explore the geological and mineralogical characteristics of the Jbel Bou Dahar region. An integrated approach with multi-sensor satellite images, including ASTER, Landsat-8, and Sentinel-2 was applied with the aim to discriminate the different lithological unit...

Au cœur de l’évolution des civilisations, au croisement des avancées technologiques et des enjeux environnementaux, se trouve un domaine dont l’importance historique et contemporaine est souvent sous-estimée : l'exploitation minière. Depuis les premières excavations primitives jusqu’aux complexes opérations industrielles d’aujourd’hui, le secteur m...

L'hydrogène naturel se réfère à l'hydrogène présent naturellement dans l'environnement, généralement sous forme gazeuse. Il est produit par des processus géologiques naturels sur de longues périodes de temps. Contrairement à l'hydrogène vert, l'hydrogène naturel est extrait directement de gisements souterrains. L'hydrogène naturel a été longtemps c...

Mesoporous silicate materials (MSMs) exhibit tremendous intrinsic characteristics suitable for diverse adsorption-based processes. However, the challenges brought on by the lack of sustainable production methods pose obstacles to large-scale synthesis...

The Sidi Bou Othmane (SBO) pegmatite district is in the Central Jebilet massif, Occidental Meseta domain, Morocco. The SBO district is hosted essentially in a volcano-sedimentary series composed of the Late-Devonian Sarhlef shales. Pegmatite bodies crop out as dykes, which are oriented from N-S to E-W and are generally variably deformed with ductil...

This work aims to evaluate the potential use of phosphate mine waste rock as a base material for compacted earth brick (CEB) production. Thus, a by-product generated in significant quantities by exploiting deposits in El Youssoufia in Morocco was the subject of the present investigations. First, it was necessary to proceed to the mineralogical anal...

This article is devoted to the synthesis of nano-silica from phosphate waste rocks as a promising route of recycling these silica-rich phosphate by-products. Furthermore, their reactivity potential will be investigated while incorporating them as nano-additive and as a partial replacement to cement in the conventionally used recipes of mortars. It...

This article is devoted to the synthesis of nano-silica from phosphate waste rocks as a promising route of recycling these silica-rich phosphate by-products. Furthermore, their reactivity potential will be investigated while incorporating them as nano-additive and as a partial replacement to cement in the conventionally used recipes of mortars. It...

Sidi Bou Othmane region in the Central Jebilet is formed by a Devonian schistose series. The polyphase Hercynian deformation in this area is characterised by penetrative, subvertical, synmetamorphic schistosity (S1), accompanied by folding. Syntectonic granitic intrusions, hidden in the Sidi Bou Othmane region, is marked by a contact of metamorphis...

La transformation digitale est en train de changer de manière significative le secteur minier en permettant une plus grande efficacité , une meilleure sécurité et une réduction des coûts. Les technologies telles que les capteurs, l'Internet des objets (IoT), la robotique, l'analyse de données, l'apprentissage automatique et la réalité augmentée son...

Les standards du reporting des ressources et réserves minérales ont été élaborés principalement pour fournir aux investisseurs et aux parties intéressées des informations fiables et auditables sur les projets miniers. Les investisseurs ont besoin de comprendre les caractéristiques et les risques associés aux projets miniers avant de prendre des déc...

A license to operate (LTO) in the mining sector refers to a permit granted by a government agency to extract minerals and resources from the earth. The process of obtaining an LTO can vary by country but often includes environmental impact assessments, land use plans, financial guarantees, and ongoing compliance with regulations. The history of LTO...

L’industrie minière constitue un secteur clé pour le développement du continent africain. Cependant malgré le fort potentiel minier, dont dispose l’Afrique, l’exploitation de ces ressources se trouve confrontée à un certain nombre de difficultés qui entravent leur pleine contribution à un développement intégré et inclusif.Pour remédier à ce paradox...

Dossier spécial du Pangea Infos, SGF

The phosphate mining industry produces large amounts of waste rocks during the open-pit mining operation. In the present paper, phosphate waste rocks, abundant in different regions of Morocco, are investigated as a candidate material for partial/entire replacement of conventionally used industrial minerals. Several recipes for the production of til...

Groundwater has long been a reliable source of water for domestic, agricultural, and industrial use in the Eastern Haouz and upstream Tassaout, but the establishment of management program that integrates groundwater and surface water uses has been hampered by the lack of detailed informations. A geophysical study using the electrical resistivity to...

The igneous phosphate rocks are mined from alkaline magmatic rocks, like syenite, nephilinic syenite, and apatite carbonatites (e.g., the Kola Peninsula and Kola Peninsula in Russia, the waste rock of the iron mines of Kiruna, Sweden and Arax, in Brazil…). In Morocco, several syenite massifs are recorded from the Precambrian to the Mesozoic and Cen...

The Zgounder inlier is located in the Precambrian Siroua Massif (central Anti-Atlas Mountains, Morocco) in the transition zone between the High Atlas Mountains in the north and the Anti-Atlas Mountains in the south. The Zgounder inlier constituted at the base by metasedimentary basement rocks of the Early Ediacaran Saghro Group which were affected...

Les séries sédimentaires phosphatées étudiées dans plusieurs bassins phosphatés marocains (Ganntour, Oulad Abdoun, Meskala) sont composées d'une alternance de couches décimétriques à pluri-métriques de phosphates granulaires sableux et de niveaux fins non phosphatés (calcaires, dolomies, marnes, argiles, bancs siliceux) de même ordre d'épaisseur. L...

Large clayey sedimentary layers are extracted as waste rock material to reach the phosphate ores. Considered as mining wastes intimately mixed with other silicated and carbonated lithologies, they are stored as coarse waste rocks in large dumps nearby the phosphate mines; as it is the case of Gantour mine of OCP group (Morocco). These clay occurren...

Réduire la section Projets projets Modifier la certification 3D Geological Model of the Eastern Haouz Region (Morocco): Hydrogeological Implications Nom du projet 3D Geological Model of the Eastern Haouz Region (Morocco): Hydrogeological Implications août 2018 – août 2018 Description du projet The Eastern Haouz in Morroco is an agricultural r...

The Eastern Haouz in Morroco is an agricultural region in full demographic, economic, and touristic expansion. To meet the increasingly growing demand of water, this paper focuses on the geological modelling of the basin geometry and on understanding the groundwater circulation. This work presents a geological model of the study area by integrating...

Very few cases of Cast Blasting use in phosphate mining are reported. However, in open-cast coal mining, Cast Blasting is a common practice. And yet, the geological structure of both types of deposits is similar. Accordingly, advantages for phosphate open-cast mines are manifest, especially as future conditions of phosphate deposits fit quite well...

Since a long time, the mineral resources considered inexhaustible and the humanity did not dare to extract them. Recently, several geoscientific studies have asked the question about the scarcity of mineral resources and they even planned some dates of their exhaustion. The example of Hubbert curve, for the "Peak Oil" (K. Hubbert, 1956), extrapolat...

Le processus de traitement des données géologiques est le garant de la qualité et de la fiabilité des études géologiques nécessaires à :-La planification de la production pour le court, moyen et long terme.-L'exploitation des gisements. A OCP, les données de 25000 coupes géologiques (description lithologique et analyses chimiques de près d'un milli...

Geological exploration of deposits leads to their geological modeling with estimation of resources and reserves of phosphate rock based on various criteria. This model is used for mine planning at different stages:•The depletion plan•The long term plan•The strategic updated plan•The business stearingThe open pit mining of phosphate deposits in the...

st – 08, 2014 "The K/Pg boundary in Morocco including phosphate deposits : The state of the question and future perspectives". Abstract: Morocco displays several marine outcrops of Cretaceous/Paleogene (K/Pg) deposits from both epicontinental (phosphates) and pelagic (External Rif) environments. The very rich paleontological heritage had been exten...

Among the non invasive geophysical method, the Magnetic Resonance Sounding (MRS) method has the advantage of having a signal directly sensitive to groundwater. This method gives a knowledge of the geometry and the hydrodynamic properties of aquifers. In minig district of Youssoufia, aquifer situated in the phsphatic series is the main resource of d...

In the hercynian of central Jbilet (Morocco), we observe a large number of gossans witch sometines tops an economical orbodies. At yje southern border of this massif, in the north Draa-Sfar area, outcrop one of these iron hats. The geophysical prospecting of this later is the subject of thepresent work whose purpose is to precise the existence unde...