Element

Concentration (μg/g)

Reference

Fe

88,443

1

Cu (soluble)

32,900

3

Ba

17,000

3

Ca

16,000

3

Al

11,000

2

Na

5800

2

Zr

2800

2

Mg

1700

2

Zn

1640

3

Ti

960

2

K

680

2

Cr

147

1.3

Sb

147

3

Mn

99

1.3

As

60

3

Pb

45

3

Hf

38

2

Sr

36

1

Ni

23

4

Pd

21

2

Ag

11

2

V

11

1

Co

6.4

1

La

4.8

2

Rb

4.2

2

Y

4.1

2

Sn

4.1

2

Cd

2.9

1

Ce

2.8

2

Mo

2.4

2

Li

2.2

2

Se

2.0

3

Th

1.5

2

Ga

1.1

2

Nb

0.80

2

Sc

0.54

2

Cs

0.43

2