Table 4 Rare earth elements (ppm) petrochemical data for the altered basic dyke at El Sela shear zone

La

14

-

5.4

-

Ce

83.4

18.8

47.4

33.7

Pr

-

-

-

-

Nd

58.2

62

64.8

67.8

Sm

-

-

-

-

Eu

3.6

7.2

5.8

6.2

Gd

9.5

14.3

12.1

13

Tb

1.3

2.2

1.8

2

Dy

8.4

6.4

8.2

7.7

Ho

1

1.3

1.1

1.3

Er

-

-

-

-

Tm

0.4

0.3

0.41

0.42

Yb

-

-

-

-

Lu

0.2

0.3

0.32

0.35