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Table 3 Chemical composition of trace elements (in ppm)

From: Chemical, mineralogical and physical study of Late Iron Age ceramics from Nditam: Cameroon (West central Africa)

Samples

Group

Zr

Sc

V

Cr

Co

Ni

Cu

Zn

Ga

Rb

Sr

Y

Nb

Ba

La

Ce

Nd

Sm

Pb

Th

CNDI 01

3

299

32

278

315

16

93

81

113

24

100

75

40

15

900

98

181

82

13

17

12

CNDI 02

3

256

64

227

160

21

80

50

150

28

165

123

50

21

788

85

154

81

15

19

11

CNDI 03

2

336

31

196

222

18

57

73

107

29

73

147

49

16

669

86

156

68

14

21

8

CNDI 04

2

152

29

118

610

24

73

49

109

23

71

151

28

11

1099

33

58

24

7

15

5

CNDI 05

1

295

18

133

161

12

39

26

84

25

113

96

30

11

554

103

189

68

10

19

32

CNDI 06

3

279

26

207

181

15

62

49

90

22

130

77

48

21

662

77

133

71

13

16

7

CNDI 07

2

348

10

90

170

4

53

15

67

34

111

169

19

17

581

67

116

43

9

45

19

CNDI 08

2

373

26

170

138

9

36

39

109

26

150

95

54

22

468

68

100

60

14

18

10

CNDI 09

3

319

36

230

275

16

79

53

115

26

140

83

65

20

737

107

197

98

21

13

15

CNDI 10

2

220

31

182

434

18

96

66

153

23

89

70

22

10

498

46

80

35

8

18

5

CNDI 11

2

444

12

155

247

17

45

22

81

27

138

142

29

20

581

70

135

52

10

28

20

CNDI 12

2

288

27

190

419

16

69

29

80

31

142

172

35

17

887

103

185

59

12

33

9

CNDI 13

2

249

20

156

145

10

41

35

79

17

104

41

28

13

497

40

76

34

8

14

8