Annexes
R² = 0,7545
0
1
2
3
4
5
6
7
8
9
10
0
5
10
15
20
25
Pb
Cu
Boudouaou El Bahri
R² = 0,894
0
5
10
15
20
25
0
20
40
60
80
100
120
140
Cu
Mn
Boudouaou El Bahri
R² = 0,7756
0
20
40
60
80
100
120
140
0
5
10
15
20
25
30
35
40
Mn
As
Boudouaou El Bahri