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721172<br />

720521+<br />

Teneur T (g/m3)<br />

0-30<br />

30-50<br />

50-100<br />

100-150<br />

150-200<br />

200-300<br />

Echelle :<br />

0 640 m<br />

718565<br />

761765 762404 763042 763681 764319<br />

UTME<br />

Fig. 7.3. Distribution des puits d'échantillonnage et des teneurs (T) au gravier de la<br />

columbo-tantalite sur la sur la mine Étienne-Méguhé<br />

719345<br />

718695<br />

761561 761764 761968<br />

762374<br />

Teneur T (g/m3)<br />

Echelle :<br />

0-30<br />

30-50<br />

50-100<br />

100-150<br />

150-200<br />

200-300<br />

0 200 m<br />

UTME<br />

Fig. 7.4. Distribution des puits de prospection et des teneurs (T) au gravier de la columbotantalite<br />

sur la sur la mine Bémadi<br />

236

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