ROCK TYPE

RHYOLITE

TRACHYTE

TUFF

BASALT

Maximum value (with sample number)

Minimum value (with sample number)

Value from single sample (56)

Value from single sample (89)

Maximum value (with sample number)

Minimum value (with sample number)

La

91.68 (28)

13.09 (15)

94.05

35.38

90.77 (5)

15.55 (154)

Ce

188.27 (28)

45.98 (15)

243.67

212.07

211.51 (5)

48.55 (154)

Pr

29.9 (28)

10.5 (15)

26.55

23.12

25.47 (5)

6.52 (160a)

Nd

137.53 (28)

46.56 (15)

133.58

102.38

129.09 (5)

38.66 (160a)

Sm

31.84 (28)

10.55 (15)

30.08

28.03

28.22 (5)

9.1 (160a)

Eu

2.51 (28)

0.76 (15)

2.24

1.67

6.64 (5)

3.19 (160a)

Gd

28.24 (28)

8.81 (15)

29.27

26.89

27.1 (5)

9.15 (6)

Tb

5.54 (28)

1.91 (15)

4.5

6.68

3.85 (5)

1.2 (6)

Dy

41.3 (28)

16.3 (15)

33.37

52.36

26.37 (5)

7.66 (6)

Ho

4.9 (28)

2.15 (15)

7.14

6.35

5.32 (5)

1.42 (6)

Er

17.48 (28)

7.68 (15)

20.64

22

14.31 (5)

3.57 (6)

Tm

2.43 (28)

1.06 (15)

2.63

3.01

1.72 (5)

0.37 (6)

Yb

25.89 (28)

10.98 (15)

17

31.08

11.19 (5)

2.34 (6)

Lu

4.31 (28)

1.73 (15)

3.69

5.01

2.6 (5)

0.52 (6)

Ce/Nd

1.59 (126)

0.99 (15)

1.82

2.07

1.64 (5)

1.13 (154)

Ce/Sm

7.07 (126)

4.36 (15)

8.1

7.57

7.5 (5)

4.18 (154)

Gd/Yb

1.41 (124)

0.8 (15)

1.72

0.87

3.91 (6)

2.18 (154)

Ce/Yb

11.38 (126)

4.19 (15)

14.33

6.82

23.07 (6)

7.3 (154)

Eu/Eu*

0.12 (27)

0.06 (164)

0.08

0.06

0.38 (6)

0.24 (5)