Tertiary volcanism

Samples.

1

30

31

32

33

34

35

36

37

38

39

DK18

DK13

DK15

DK14

DK1

DK17

DK16

DK3

DK2

DK6

DK7

DK8

SiO₂

41.72

41.58

39.26

41.14

42.46

39.39

39.87

38.76

42.33

47.85

47.22

40.46

41.50

39.80

43.34

39.96

45.31

46.91

40.81

40.62

40.60

39.56

47.21

Al₂O₃

11.51

11.71

13.12

11.55

13.49

12.14

12.55

15.91

12.23

13.62

15.95

11.67

12.00

12.80

14.02

12.63

13.20

13.20

12.03

12.96

17.27

11.26

13.55

Fe₂O₃

13.41

12.56

10.42

12.39

11.41

11.57

11.91

12.09

12.37

11.57

11.93

11.67

13.10

11.80

12.03

11.85

11.43

11.14

10.94

11.49

10.39

11.96

11.85

MnO

0.19

0.19

0.17

0.18

0.18

0.19

0.20

0.22

0.20

0.16

0.19

0.19

0.20

2.00

0.19

0.17

0.17

0.16

0.17

0.17

0.17

0.20

0.16

MgO

12.72

12.73

7.69

12.25

9.15

11.71

10.62

5.80

10.77

9.80

3.52

12.07

11.30

11.10

9.26

11.05

11.94

11.23

12.82

11.14

4.90

13.53

9.69

CaO

12.84

12.33

15.95

12.56

12.05

14.97

14.55

13.77

12.32

10.06

8.74

15.38

12.40

14.40

12.72

14.83

11.64

11.99

15.53

14.86

11.08

14.33

10.48

Na₂O

2.64

2.73

3.30

2.72

3.46

1.97

2.94

4.69

4.10

2.86

4.86

2.84

3.54

2.83

3.39

3.41

2.83

2.85

3.12

3.29

5.58

3.04

3.16

K₂O

0.96

0.85

1.56

0.69

1.00

0.25

0.26

0.12

0.88

0.76

2.02

1.08

0.92

0.27

1.17

7.00

1.14

0.90

0.76

0.68

2.50

0.73

0.64

TiO₂

2.50

1.82

2.07

1.80

1.96

1.96

2.05

1.99

2.22

1.55

2.49

2.13

2.50

2.04

2.04

2.37

2.14

1.80

1.97

3.08

1.68

1.93

1.43

P₂O₅

0.83

0.90

2.77

0.85

0.84

0.89

1.00

1.59

0.58

0.28

1.02

1.05

0.90

1.05

0.91

0.94

0.58

0.57

0.93

0.76

1.62

1.04

0.51

PF

0.88

1.77

2.61

2.80

2.92

4.31

4.10

5.17

2.37

1.26

1.87

1.84

1.66

4.42

2.66

1.59

0.66

0.76

1.32

1.42

3.61

2.18

1.03

Total

100

99.16

98.92

98.93

98.91

99.37

100

100

100

99.76

99.80

100

100

100.71

101.73

99.48

101.04

101.51

100

100

99.40

99.76

99.71

NaO/K₂O

2.75

3.19

2.12

3.96

3.46

7.91

11.12

40.75

4.65

3.78

2.41

2.63

3.85

10.48

2.90

5.01

2.48

3.17

4.11

4.84

2.23

4.16

4.94

Ne'

11.7

10.5

13.7

9.75

10.1

8.63

13.4

21.2

19.2

0

10.6

13

15.3

13

12.5

15.6

7.11

4.43

14.3

15.1

25.58

1.35

13.9

Co

83.3

77.9

82.6

76.6

73.8

69.8

68.2

55.9

78.4

123

49.9

72

76

73

60

82

69

67

74

65

42

64

59

Cr

447

399

99.6

386

217

400

362

12.2

393

467

43

386

358

335

203

258

577

548

577

531

18

356

49

Cs

0.37

0.37

0.26

0.36

0.93

0.39

0.27

0.48

1.26

0.88

1.53

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Hf

5.28

3.30

3.75

3.62

4.55

6.69

4.53

3.05

4.69

2.22

4.67

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Nb

80.9

61.1

108

61.6

99.8

118

156

236

122

39.1

156

91

119

118

104

96

88

54

103

98

134

46

84

Ni

371

301

105

289

142

217

199

54.4

260

305

50.5

298

293

172

120

210

307

306

269

201

59

236

308

Rb

27.9

23.1

55.6

17.6

26.7

14.2

12.1

8.82

44.4

24.9

63.9

31

30

11

30

23

34

18

23

27

89

24

29

Sr

802

828

1540

872

1997

2732

2799

3571

802

552

843

1583

709

2812

1490

1302

784

694

1073

1011

1774

579

1088

Ta

7.26

4.14

7.45

4.61

6.11

6.81

7.74

11.01

9.88

3.39

11.38

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Th

5.27

5.11

9.67

5.44

11.85

10.77

12.17

18.23

5.74

2.20

8.80

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

U

1.25

1.24

2.09

1.28

3.64

2.59

3.18

4.79

1.38

0.53

2.10

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

V

228

191

225

180

196

227

268

314

249

218

232

233

220

242

206

219

242

220

220

284

202

179

197

Y

25

25

38.6

25.9

28.8

29.7

33.6

40.4

24.9

20.6

36.4

29

27

31

31

27

24

23

25

22

33

29

21

Zr

212

152

201

155

222

329

257

257

227

99.2

250

182

228

226

212

165

231

156

200

212

156

89

178

La

45.62

55.40

112.90

57.99

103

87.63

97.77

140

42.32

17.59

65.04

80.90

49.50

88.30

101.00

83.52

47.20

38.40

82.41

84.64

107

44.34

74.00

Ce

88.57

107.70

216.10

113.40

174

164

181.60

252

78.71

34.32

118.30

158

95.2

167

176

155

92.6

77.5

152

101

184.8

74.65

141

Pr

10.43

12.40

23.85

13.05

18.60

18.27

19.71

26.42

8.90

4.08

12.90

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Nd

41.61

48.29

89.79

50.68

67.47

67.26

72.25

92.71

34.46

16.79

48.19

66.10

41.60

67.90

67.30

63.27

40.17

34.30

63.12

46.02

72.14

28.67

61.60

Sm

8.44

9.02

15.65

9.54

11.42

11.45

11.92

14.58

6.82

3.78

9.08

9.23

7.75

9.80

10.70

12.25

5.17

5.98

11.75

9.43

13.02

6.20

11.93

Eu

2.73

2.79

4.68

2.90

3.52

3.42

3.65

4.26

2.28

1.37

2.98

2.47

2.15

2.52

2.73

3.51

1.40

1.78

3.26

2.77

3.72

1.88

3.52

Gd

7.42

7.46

12.55

7.57

9.14

9.00

9.60

11.60

6.20

4.02

8.47

7.90

6.81

8.08

8.48

9.77

4.90

5.68

9.18

8.01

10.07

5.73

9.59

Tb

1.02

1.02

1.62

1.08

1.18

1.22

1.28

1.52

0.87

0.62

1.21

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Dy

5.39

5.34

8.38

5.64

6.13

6.21

6.55

7.77

4.73

3.58

6.78

5.68

4.95

6.07

5.87

5.68

4.46

4.21

5.38

4.92

6.71

4.23

6.10

Ho

0.92

0.91

1.37

0.95

1.02

1.05

1.11

1.33

0.82

0.67

1.20

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Er

2.32

2.21

3.36

2.37

2.62

2.67

2.83

3.49

2.05

1.76

3.11

2.32

2.24

2.70

2.67

2.36

1.85

1.88

2.24

2.00

2.94

1.94

2.49

Tm

0.30

0.29

0.43

0.31

0.35

0.37

0.38

0.47

0.28

0.24

0.42

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

nd

Yb

1.83

1.79

2.51

1.87

2.10

2.26

2.36

2.92

1.70

1.46

2.66

1.34

1.71

1.89

1.99

1.72

1.14

1.35

1.64

1.44

2.23

1.54

1.81

Lu

0.28

0.26

0.35

0.28

0.31

0.34

0.34

0.42

0.25

0.22

0.38

0.16

0.24

0.24

0.27

0.31

0.14

0.19

0.30

0.25

0.37

0.26

0.29