zpravodajství životního prostředí již od roku 1999

Uranová ložiska Nigeru

Uranová ložiska Nigeru

The Republic of Niger is a landlocked sub-Saharan country in Western Africa named after the Niger River. With a history of human occupation dating back as much as 600,000 years, Niger's recent colonial history and development parallel other French West African territories. Independent since 1960, Niger's current governmental system is based on the French semi-presidential democratic system. Niger is ranked as the world's third largest producer of uranium behind Canada and Australia, and is ranked fourth in the world in terms of uranium resources. Uranium exports represent over 70% of the country's nation export proceeds.


Bayswater has entered into agreements for uranium concessions totaling over 7800 sq. km. in favourable geologic settings for the occurrence of major uranium deposits. The concessions are accessible by road and 4x4 vehicle. All of the land holdings fall between 60 and 400 km from the world-class Arlit and Akouta uranium mines which together have produced over 100,000 tonnes of U308 to date. The concessions fall into three distinct packages around the Arlit-Akouta area. The Tikikitene and Eghizi concessions are side by side, lying from 60 to 130 km to the northwest, The Anwala concession lies 240 km to the southwest, and the Emi Lulu concession sits approximately 400 km northeast.


The Arlit and Akouta deposits provide excellent geologic models for uranium exploration in Niger. These deposits are of the sandstone roll-front model, hosted in continental to marine deltaic sandstones along the western margin of older basement rocks forming part of the Air Massif mountains forming part of the West African Shield. They show close affinity to regional fault structures.

The Tikikitene and Eghizi concessions combined provide the Company with a land position comprising a complete cross section of northwest-southeast trending mine stratigraphy that is also extended north-south along regional fault structures and lineaments.


The Emi Lulu concession is underlain by basin margin sediments, similar to the stratigraphy of the Arlit-Akouta deposits, and plutonic basement rocks of the Air Massif. The concession is transected by fault structures favourable for uranium in the area, including strong NNW-SSE trending basin and range type faulting and areas of intersecting major northeasterly trending structures.

The Anwala property sits along the strike extension of fault structures, lineaments and other uranium prospects and deposits that extend along a NNE-SSW trending uranium belt, with the Arlit-Akouta deposits at the north end of the belt. Along the belt between the Anwala property and Arlit-Akouta deposits lie the Aborkun and Imouraren uranium deposits. Just twenty kilometers upstrike from the Anwala property the Tin Negoran uranium prospect is characterized by anomalous concentrations of uranium of up to 7.4% in young sediments and values of up to 0.146% U308 in older sediments. All of the known deposits and prospects in this uranium belt have associated airborne radiometric anomalies.

Very little historical work has been done on these concessions. The Tikikitene, Emi Lulu and Eghizi concessions have had partial airborne radiometric surveys completed in the past, but no previous work is known to have been done at Anwala. Some ground follow-up surveys and limited drilling occurred on the Tikikitene and Emi Lulu properties. Overall, these concessions and Niger in general are highly unexplored particularly with respect to utilizing modern exploration techniques.

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ZDROJ: Bayswater Uranium Corp.

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