Range (ppm)

Average (ppm)

La

2.8 - 59.7

24.89

Ce

6.6 - 115.75

52.22

Pr

0.8 - 13.3

6.11

Nd

3 - 45.8

22.15

Sm

0.7 - 9.6

4.94

Eu

0.2 - 1.9

0.67

Gd

0.7 - 8.5

3.71

Tb

Bdl-1.1

0.49

Dy

0.7 - 6

2.45

Ho

Bdl-1.2

0.48

Er

0.2 - 3.2

1.31

Tm

Bdl-0.5

0.28

Yb

0.3 - 3.7

1.62

Lu

Bdl-0.6

0.32