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The Miriam Case

Daniel Guibal, Robert Bowell, Peter Gleeson
Tuesday, June 11, 2013
First presented: 
AusIMM International Uranium Conference

The Miriam case: A new type of uranium deposit within the Carboniferous sandstone -  hosted Uranium Mineralisation of the Arlit Agadez  province, Tim Mersoi Basin, Niger

The Miriam deposit was discovered at the 400 m-200 m grids while drilling  the interpreted redox halo which supported all known deposits in the Madaouela region. GNSA geologists had suggested that at a certain stage it should be possible to encounter redox front of the Akouta model, on the basis of redox observations on MSNE and first exploration results on the sector called Mad South. At the 400 m grid, no rich intersections were recorded, but the scintillometric logs, and chips colours clearly mimic the possibility for a local redox front, albeit at low grade. At the 200 m grid, the mineralisation at cut-off 200 ppm showed interesting continuities, an average depth lower than 100 m and some rich intercepts –suggesting the possibility of a low grade open pittable deposit.


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