Abstract the niger river is the third largest african river. Udoh 1,2department of geology, university of port harcourt, port harcourt, nigeria. T e t ad s a p a p p le i d t o t e h ias iullemeden. The project will involve several civil society actors through the coordination of resources users of niger river in mali, such as fishermen, dyers, maraichers, gravel and sand extractors, etc. Niger basin, hydrology, discharge, flow measurement, rating curve. Il est situe au mali, au niger, au nigeria, en algerie et au benin. Les transformations physiques et chimiques subies par les eaux dans le soussol, sassocient. The iullemeden aquifer system constitutes a strategic resource for the sustainable development of the concerned countries. Each country within the basin has unique geographic settings and a wide. Niger dams project, series of three dams and reservoirs built in the second half of the 20th century in kwara, niger, and kebbi states, northwestern nigeria, on the niger and kaduna rivers. Goviex uranium files its environmental and social impact. Since independence from french colonialism in 1958, the country has seen alternate periods of civil and military rule.
Many of the references below, and others relating to the hydrogeology of mali, can be found in the africa groundwater literature archive. Niger and nigeria and covers a total area of approximately 500. Mali niger nigeria sahara and sahel observatory bd du leader y. Uranium geology niger, west africa exploration history.
Afrique, fleuve niger, mali, sedimentologie, hydrologie isoto pique, ressources en eau. P t r a n s b o u n d a r y iullemeden aquifer system. The niger river basin is an extraordinary asset for the nine countries that are within its watershed and for the broader west and central africa region. Impact of dams on the hydrology of the niger delta springerlink. The sands are very fine to coarse grained, subangular to subrounded, poor to fairly well sorted. The field of groundwater hydrology and the discipline of hydrogeology have attracted a lot of attention during the past few decades. The niger traverses four countries, two of which niger and nigeria are named after it. Les techniques isotopiques en hydrologie dans les pays du. In 2005, niger uranium production reached 3,093tu, making niger one of the worlds largest uranium producers. The project is carried to collect and share continuously data on water quality of river niger in bamako and surroundings.
Goviex uranium files its environmental and social impact assessment for the madaouela uranium project in niger vancouver, canada goviex uranium inc. Niger is the largest country in west africa, with some 80% of its area within the sahara desert. Hydrologie et geochimie du bassin soudanosahelien du fleuve. Other actors such as industrialists will also be involved, as will the. Discharge measurements at niger river and its tributaries. Le president du bureau preside lassemblee generale. Sierra leone, liberia, guinee, niger, burkina faso, mozambique, rwanda, burundi, zimbabwe. Its contribution to past uranium production has already been mentioned as one of the few showing a cumulative production in the range of 100,000 tu. In addi tion with the bani river, its surface basin is of 250 000 km2. In subhumid, semiarid and arid regions, evapotranspiration is the second largest component of the water balance, and is affected not only by the availability of water but also by any change in. Mali is a landlocked country, formerly part of the three ancient sahelian empires of ghana, mali and songhai. Annual discharges variations, since the beginning of the observations, for the niger ut koulikoro and dire and for the bani at douna. The upper niger is defined before the inner delta at the station of koulikoro.
Session extraordinaire du conseil des ministres a abuja nigeria. Paleorecharge by the niger river mali deduced from. Currently a multiparty democracy, niger faces significant development challenges. Evolution des modules annuels, depuis lorigine des observations, du niger a koulikoro et dire et du bani a douna. Sediments, offshore depobelt, niger delta, nigeria matthew o. The impoundment of 49 dams in the niger catchment area with a combined reservoir capacity of 36 million m3 has a direct impact on the niger delta, resulting from the reduction in flow and sediment delivered to the coast. Fiche descriptive du site page niger mekrou au niger.
Discharge measurements at niger river and its tributaries bagoe, baoule, kouroukele and niandan. A the height of the mali empire in the th century, the town of timbuktu was a centre of culture, learning and islamic religion, and djenne was an international trade centre. Join our community just now to flow with the file exercice d hydrogeologie2 and make our shared file collection even more complete and exciting. Precipitation is one of the major factors in the water balance of a catchment and as such the water cycle is most sensitive to changes in rainfall petheram et al. This book, written by 15 scientists from 6 countries, clearly demonstrates the extensive range of issues that are dealt with in the field of hydrogeology. It borders nigeria and benin to the south, burkina faso and mali to the west, algeria and libya to the north and chad to the east. Hydrologie et geochimie du bassin soudanosahelien du. Other actors such as industrialists will also be involved, as. With a length of 4,200 km, the niger river is the third longest river in africa after the nile and the congo river. Water quality data of the niger river around bamako, mali. Niger dams project dams and reservoirs, nigeria britannica.
Major floods of the niger river during the more humid episodes of the holocene, probably associated with northward migration of the interior river delta flood zone, were responsible for groundwater recharge. Ground water sensitivity to climate variability in the. Niger, officially the republic of niger, is a landlocked country in western africa, named after the niger river. Benin burkina faso cape verde chad cote divoire gambia ghana guinea guinea bissau liberia mali mauritania niger nigeria senegal sierra leone togo western sahara. T e t ad s a p a p p le i d t o t e h ias iullemeden aquifer.
Au sud par le burkina faso et le benin et au sudest par le parc regional du w. Mineralurgie geophysique hydrogeologie, rehabilitation et. Niger is one of the most important uraniumbearing provinces of the world. Gxu announced today that the environmental and social impact assessment esia for the companys madaouela uranium project has been completed and filed with the nigerien minister in. Impact of dams on the hydrology of the niger delta. A regional lithostratigraphic and hydraulic interpretation is presented for the upper 0300 m of the benin formation where groundwater is abstracted in the rivers state, nigeria.
Hydrologie, agroecologie et superficies dinondation dans le delta interieur du niger. Abstract lithofacies, depositional sequences and reservoir stratigraphy of the deep offshore field, otherwise. Les techniques isotopiques en hydrologie dans les pays du sahel. The niger delta has a fragile coastline in which the river hydraulic forces are in dynamic equilibrium with coastal processes. The aquifers are predominantly sand beds with minor clays, lignite, and conglomerate intercalations. Information about niger ascl country portal information. A marine aerosol input, somewhat modified by rockwater interaction, dominates the groundwater chemistry. This is mainly because of the increasing need for high quality water, especially groundwater.
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