DD.4.49

DD.4.70

DD.4.80

DD.5.37

DD.5.57

DD.5.70

DD.20.51

DD.20.70

DD.20.80

Major elements (wt%)

SiO2

45.9

49.8

47.1

56.9

49.1

51.0

66.5

45.3

42.9

Al2O3

10.2

2.9

2.8

0.3

0.1

8.0

0.1

2.1

1.8

Fe2O3

33.5

37.5

43.4

37.1

47.6

27.7

28.1

48.3

51.2

MgO

3.1

2.6

2.2

0.7

4.1

4.1

0.4

3.5

3.8

CaO

0.7

4.8

3.1

0.6

0.9

4.3

0.5

1.0

1.0

Na2O

0.0

0.2

0.5

0.0

0.0

1.6

0.0

0.1

0.1

K2O

0.9

0.4

0.4

0.0

0.0

0.5

0.0

0.1

0.0

TiO2

0.3

0.1

0.1

0.0

0.0

0.4

0.0

0.1

0.1

MnO

0.2

0.1

0.1

0.4

0.4

0.2

0.0

0.5

0.7

LOI

0.4

1.1

0.8

4.5

−1.4

1.1

4.4

−1.0

−1.5

Sum

100.1

97.1

99.9

101.5

101.1

99.4

100.0

100.2

100.1

Trace elements (ppm)

As

10

5

20

10

20

10

5

10

10

Ba

70

20

20

5

5

40

5

5

5

Cl

280

200

190

10

250

150

10

50

110

Co

5

5

5

5

10

20

5

5

10

Cr

174

180

173

239

231

248

176

20

16

Cu

30

20

30

40

20

80

20

20

40

N

20

10

20

20

20

40

10

5

5

P

710

630

690

580

700

450

650

770

800

Pb

5

5

20

20

40

5

20

60

50

S

873

172

695

779

72

105

84

18

495

Sn

5

5

5

5

5

5

5

10

20

Sr

5

40

30

30

30

70

110

100

100

V

50

20

20

5

5

100

10

20

10

Zn

60

20

40

30

20

40

30

40

50

Zr

100

50

40

40

60

70

240

180

180