Borehole No.

W1

W2

W3

Rock types

· 0 - 12 m: wadi deposits.

· 12 - 63 m: biotite ± muscovite granite.

· 0 - 44 m: biotite ± muscovite granite.

· 0 - 43 m: biotite ± muscovitegranite.

Hydrothermal alteration

biotite highly altered into ferrichlorite pennite), muscovitization, albitization, sericitization, kaolinization and argillization.

Sulfides

Pyrite, arsenopyrite, chalcopyrite, galena and sphalerite

Nb-Ti-, Zr-Hf-, F-minerals

Columbite, betafite, rutile, zircon

Columbite, rutile, zircon

Columbite, betafite, rutile, zircon, fluorite

REE-minerals

Allanite, LREE carbonate

Allanite

Allanite

Th-minerals

Thorite

Thorite, phosphothorite with apatite

Thorite

U-Th-minerals

uranothorite

U-minerals

· Brannerite, coffinite, uraninite and pitchblende

· W1-4 and W1-7 samples at depth 53 and 62 m , respectively.

· Brannerite, coffinite, uraninite and pitchblende

· W3-2 and W3-3 samples at depth 30 and 43 m , respectively.