http://depot.umc.edu.dz/handle/123456789/7425 2026-05-01T09:28:04Z 2026-05-01T09:28:04Z Bourayou, Riadh Marmi, Ramdane http://depot.umc.edu.dz/handle/123456789/7456 2022-05-24T11:15:37Z 2017-06-14T00:00:00Z

Caractérisation des paléoenvironnements des calcaires aptiens des Dj. Bou Arif, Dj. Fedjoudj, et Dj. Tarf et Potentialités en hydrocarbures. Bourayou, Riadh; Marmi, Ramdane The study area match the Atlas area surrounded to the north by immigrant area and south by the area parautochtone. The whole part of the margin of the African plate to which the Alpine tectonics plays a crucial role in setting up different structures. Its structural evolution is related to tectonic events succeeding in the time since the end of the Paleozoic until today. The terrain encountered in the study area are generally of Meso-Cenozoic age, consisting essentially of marine facies carbonate clay interspersed occasionally by clay and sandstone deposits, corresponding to the Neocomian, Barremian and Albian and lower Miocene. On the sedimentological level, the limestones of the Aptian at the series of massive, Dj. Fedjoudj, Bou Arif and Dj Tarf part in internal domain subtidal to intertidal facies in the majority depends on a complex barrier, generally characterized by oolitic facies. This is usually sought when mainly be a barrier reef area and because of their petrophysical characteristic. On the tectonic map, different structures are represented by structures of Atlas plicatives direction (NE-SW) and the compartmentalized Timgad basin south. The hydrocarbon potential map and the data areas (geological and geophysical) surrounding and by correlation with the sedimentological context of the region, the Aptian age limestone could be a real tank. The interest in the study of Oolitic deposits along the barrier complex is the result of discoveries of oil in many parts of the world.

2017-06-14T00:00:00Z Mammeri, Madiha Dib, Hénia http://depot.umc.edu.dz/handle/123456789/7455 2022-05-24T11:15:35Z 2017-05-10T00:00:00Z

Le thermalisme de la région de Mila Mammeri, Madiha; Dib, Hénia The hydrogeothermal resources Mila region emerge in favor of tectonic conjugate directions NS, EW, NW-SE. They are defined by the emergence temperatures ranging from 30°C to Ain Tinn and 54°C in Beni Guechat (hyper). You meet all kinds of geochemical facies bicarbonate waters, sulphated, with chloride respectily from carbonate formations, gypsiferous and saline. The use of chemical geothermometry to estimate the temperature of the waters to the various depths with values varying between 52.19°C (minimum temperature) in Dar Echikh and 842,14°C (maximum temperature) to the hot spring Dar El Fouini. The mineralization of water is very important due to the thermodynamic conditions for the solution temperature and carbon dioxide. Isotopic analysis of water and gas produced on the thermal waters, shows that they are essentially meteoric origin and carbon dioxide, water mineralizing element, derived from sedimentary formations linked to thermodecarbonization.

2017-05-10T00:00:00Z Lamri, Mourad Bourefis, Ahcene http://depot.umc.edu.dz/handle/123456789/7454 2022-05-24T11:15:32Z 2017-06-15T00:00:00Z

Etudes mineralogique et geochimique des granitoides de la region de Collo Lamri, Mourad; Bourefis, Ahcene The region of Cap Bougaroun is part of the Kabylie of Collo. Structurally the massif of Cape Bougaroun is integrated in the Maghrebian chain; it belongs to the internal domain and more precisely to the base Kabyle. The tertiary magmatic complex of the Kabylie of Collo is exposed in a metamorphic and sedimentary complex that participates in the formation of this structural edifice. The granites occupy a large surface of outcropping which cover almost the whole massif of Cape Bougaroun, it is the ""pericuminous granites with cordierite"". These granites are of a clear color, often porphyroids. The essential minerals are: quartz, potassium feldspar, plagioclases, biotite, cordierite and muscovite. Tourmaline, zircon, apatite and ilmenite are the accessory minerals.

2017-06-15T00:00:00Z Bouftouha Youcef Benlamari Azzouz http://depot.umc.edu.dz/handle/123456789/7453 2022-05-24T11:15:30Z 2017-01-01T00:00:00Z

Etude géologique et gîtologique de la minéralisation ferrifère et cupro-barytique des massifs carbonates de Kef Sidi Marouf, kef derdja et Kef Boulehmame, commune de Sidi Marouf (ne Algerien) Bouftouha Youcef; Benlamari Azzouz The region of Sidi Maarouf and its surroundings in north-eastern Algeria is distinguished by the presence of a number of massive carbonates of Jurassic age (Kef Sidi Marouf, Kef oulehmame and Kef Derdja). These massives carbonates, belonging to the external domain of maghrebide range are located in the transition zone between the external and the internal domain, represented by metamorphic formations of the Kabyle plinth. The mountains of Kef Sidi Marouf and Kef Boulehmame present an interest economic region, because they contain iron deposits and carbonate rocks that can be used for steel, cement and aggregates, while Kef Derdja contains only one index of a copper-iron-baryte mineralization and a quarry for the extraction of limestone blocks to rockfill. These carbonate mountains occupying a peridiapiric position are formed mainly by carbonate rocks of jurassic age. The formations of these massifs show traces of several tectonic events (fracturing, grinding, rebound layers in the vertical). The intense fracturing of the carbonate rocks greatly promoted the circulation of fluids and led the development of dissolution phenomena of karst, dolomitization, silicification and mineralization. The ore bodies form the ore deposits of study area have variable morphologies and volumes. However, cluster and lode are the most common. Mineralization of carbonate masses of the region of Sidi Marouf is composed mainly of iron oxides and hydroxides (hematite, goethite and limonite), plus a barium-copper mineralization. The geological and gîtological data of mineralizations hosted in carbonate mountains formations in the region of Sidi Marouf reveal a set up of these mineralizations by hydrothermal solutions. 88 f.

2017-01-01T00:00:00Z