Table T1. Percentages of calcium carbonate, total organic carbon, total nitrogen, and total sulfur in sediment samples, Holes 1087A and 1087C.

Core, section,
interval (cm)
Depth
(mbsf)
CaCO3
(wt%)
TOC
(wt%)
TN
(wt%)
C/N
(atomic)
TS
(wt%)
Unit 1: Pleistocene to upper middle Miocene foraminifer-nannofossil ooze

175-1087A-







1H-2, 46-47

1.96

78.2

0.90

0.11

10.0

0.06

1H-4, 46-47

4.96

85.4

0.73

0.08

10.7

0.20

1H-6, 46-47

7.96

81.9

1.32

0.12

13.0

0.17

2H-2, 46-47

10.16

70.0

1.59

0.16

11.5

0.35

2H-4, 46-47

13.16

80.5

1.06

0.11

11.5

0.15

2H-6, 46-47

16.16

75.3

0.86

0.09

10.7

0.16

3H-2, 46-47

19.66

72.6

3.13

0.25

14.9

0.50

3H-4, 46-47

22.56

80.8

2.45

0.20

14.2

0.34

3H-6, 46-47

25.56

74.5

0.96

0.10

11.2

0.17

4H-2, 46-47

29.16

78.6

1.55

0.13

13.7


4H-4, 46-47

32.16

86.3

1.04

0.09

13.7


4H-6, 46-47

35.16

77.0

1.29

0.11

13.4


5H-2, 46-47

38.66

70.8

1.95

0.18

12.8

0.40

5H-4, 46-47

41.66

61.6

1.67

0.16

12.2

0.61

5H-6, 46-47

44.66

66.8

1.04

0.12

10.2

0.36

6H-2, 46-47

48.16

72.8

1.76

0.16

13.1

0.34

6H-4, 46-47

51.16

72.2

1.32

0.13

12.3


6H-6, 46-47

54.16

69.9

1.19

0.12

11.9

0.33

7H-2, 46-47

57.66

66.2

2.12

0.18

13.8


7H-4, 46-47

60.66

69.8

2.18

0.18

14.4

0.83

7H-6, 46-47

63.66

66.6

1.88

0.17

13.0

0.43

8H-2, 46-47

67.16

64.1

1.51

0.14

12.3

0.50

8H-4, 46-47

70.16

67.7

1.64

0.15

12.6

0.49

8H-6, 46-47

73.16

65.5

1.96

0.17

13.2

0.56

9H-2, 46-47

76.66

69.8

2.42

0.21

13.7

0.76

9H-4, 46-47

79.66

69.1

1.76

0.17

12.1

0.44

9H-6, 46-47

82.66

74.1

1.27

0.12

12.0

0.38

10H-2, 46-47

86.16

59.4

2.03

0.18

13.5

0.79

10H-4, 46-47

89.16

73.3

1.58

0.13

13.7


10H-6, 46-47

92.16

82.4

1.36

0.11

13.9

0.34

11H-2, 46-47

95.66

77.1

0.77

0.08

11.6


11H-4, 46-47

98.66

76.9

0.93

0.09

12.6

0.42

11H-6, 46-47

101.66

84.4

0.58

0.06

11.3


12H-2, 46-47

105.16

79.9

1.13

0.10

13.7

0.39

12H-4, 46-47

108.16

77.3

0.77

0.07

12.1

0.31

12H-6, 46-47

111.16

71.3

0.90

0.10

10.5

0.40

13H-2, 46-47

114.66

73.6

1.19

0.11

12.6

0.47

13H-4, 46-47

117.66

69.0

1.73

0.15

13.5

0.37

13H-6, 46-47

120.66

63.0

2.12

0.18

13.4

0.74

14H-2, 46-47

124.16

73.6

1.18

0.11

12.4

0.45

14H-4, 46-47

127.16

74.9

1.17

0.10

13.0


14H-6, 46-47

130.16

66.1

1.50

0.14

12.8


15H-2, 46-47

133.66

76.8

2.21

0.18

14.5

0.75

15H-4, 46-47

136.66

76.6

1.58

0.12

14.8


15H-6, 46-47

139.66

79.8

1.18

0.10

14.1

0.41

16H-2, 46-47

143.16

81.0

1.46

0.11

14.8

0.53

16H-4, 46-47

146.16

63.0

1.63

0.16

12.3

0.50

16H-6, 46-47

149.16

75.6

2.07

0.16

15.5

0.67

17H-2, 46-47

152.66

79.3

1.40

0.12

14.1

0.48

17H-4, 46-47

155.66

78.9

1.12

0.09

13.8

0.28

17H-6, 46-47

158.66

76.9

1.26

0.13

10.9

0.32

18H-2, 46-47

162.16

76.4

1.41

0.11

14.5

0.43

18H-4, 46-47

165.16

75.3

1.79

0.15

14.0

0.48

18H-6, 46-47

168.16

77.7

1.04

0.09

13.1

0.35

19H-2, 46-47

171.66

70.3

1.58

0.14

13.6


19H-4, 46-47

174.66

82.3

1.15

0.10

13.5

0.25

19H-6, 46-47

177.66

72.9

1.75

0.14

14.6

0.52

20H-2, 46-47

181.16

69.9

0.94

0.10

11.4


20H-4, 46-47

184.16

75.4

1.63

0.14

13.9

0.32

20H-6, 46-47

187.16

79.5

0.75

0.08

11.6

0.18

21H-2, 46-47

190.66

70.1

1.14

0.12

11.1

0.38

21H-4, 46-47

193.66

72.7

0.84

0.09

11.1

0.20

21H-6, 46-47

196.66

72.2

0.68

0.08

10.2

0.24

22H-2, 46-47

200.16

77.3

0.75

0.07

11.8

0.30

22H-4, 46-47

203.16

79.2

0.96

0.08

14.1

0.45

22H-6, 46-47

206.16

72.2

1.32

0.12

13.1

0.40

23H-2, 46-47

209.66

75.9

0.83

0.09

10.9

0.21

23H-4, 46-47

212.66

90.5

0.70

0.05

15.0

0.18

24H-2, 46-47

219.16

84.6

0.52

0.05

11.5


24H-4, 46-47

222.16

73.0

0.65

0.08

9.7

0.18

24H-6, 46-47

225.16

67.2

0.72

0.09

9.6

0.32

25H-2, 46-47

228.66

80.5

0.42

0.05

9.1

0.16

25H-4, 46-47

231.66

72.2

0.53

0.06

10.5

0.17

25H-6, 46-47

234.66

74.2

1.30

0.11

13.7

0.31

26H-2, 46-47

238.16

83.7

1.03

0.08

14.3

0.27

26H-4, 46-47

241.16

80.9

0.67

0.07

11.3

0.18

27H-2, 46-47

247.66

76.7

0.57

0.06

11.7


175-1087C-







28X-2, 46-47

250.56

77.5

0.79

0.08

11.8

0.26

175-1087A-







27H-4, 46-47

250.66

69.8

0.91

0.10

11.0


175-1087C-







28X-4, 46-47

253.56

84.3

0.35

0.04

10.3

0.08

175-1087A-







27H-6, 46-47

253.66

69.1

0.66

0.07

10.7

0.13

175-1087C-







28X-6, 46-47

256.56

85.8

0.32

0.04

10.2


29X-2, 46-47

256.86

76.8

0.59

0.07

10.3

0.27

29X-4, 46-47

259.86

88.2

0.26

0.03

9.5


30X-2, 46-47

263.16

79.3

0.78

0.08

12.0

0.14

30X-4, 46-47

266.16

80.6

0.62

0.06

12.2


30X-6, 46-47

269.16

86.9

0.49

0.05

12.3

0.09

31X-2, 46-47

272.76

86.2

0.35

0.04

10.2


31X-4, 46-47

275.76

84.6

0.26

0.03

8.9

0.08

31X-6, 46-47

278.76

83.2

0.35

0.04

9.8

0.11

32X-2, 46-47

282.36

91.0

0.29

0.02

13.6

0.06

32X-4, 46-47

285.36

86.9

0.29

0.03

10.0

0.09

32X-6, 46-47

288.36

68.6

0.32

0.04

10.1

0.10

33X-2, 46-47

291.96

90.0

0.41

0.04

12.8

0.11

33X-4, 46-47

294.96

82.8

0.31

0.04

8.5

0.09

33X-6, 46-47

297.96

78.0

0.51

0.06

9.9


34X-2, 46-47

301.66

78.2

0.43

0.05

9.4

0.22

34X-4, 46-47

304.66

89.0

0.36

0.04

11.4


34X-6, 46-47

307.66

84.8

0.28

0.04

9.0


35X-2, 46-47

311.21

87.0

0.51

0.05

12.1

0.11

35X-4, 46-47

314.21

87.5

0.34

0.04

11.2

0.08

35X-6, 46-47

317.21

82.5

0.51

0.05

11.1

0.10

36X-2, 46-47

320.86

79.3

0.43

0.05

9.7

0.14

36X-4, 46-47

323.86

78.8

0.59

0.07

10.4

0.13

37X-2, 46-47

330.46

78.3

0.25

0.04

6.7

0.06

37X-4, 46-47

333.46

77.9

0.37

0.05

8.0


37X-6, 46-47

336.46

79.1

0.34

0.05

7.8


38X-2, 46-47

340.16

77.2

0.32

0.05

8.1

0.19

38X-4, 46-47

343.16

82.1

0.42

0.05

10.2


38X-6, 46-47

346.16

75.5

0.34

0.06

7.0

0.17

39X-2, 46-47

349.76

60.1

0.55

0.09

7.0

0.27

39X-4, 46-47

352.76

57.1

0.46

0.09

6.3

0.06

39X-6, 46-47

355.76

63.7

0.27

0.06

5.6

0.31

40X-2, 46-47

359.36

59.4

0.30

0.07

5.2


40X-4, 46-47

362.36

65.2

0.33

0.07

5.8

0.18

40X-6, 46-47

365.36

74.4

0.29

0.06

6.1

0.09

41X-2, 46-47

369.06

70.9

0.34

0.06

7.1

0.22

41X-4, 46-47

372.06

77.7

0.26

0.04

7.8

0.09

42X-2, 46-47

378.66

85.6

0.26

0.04

7.6

0.05

42X-4, 46-47

381.66

71.4

0.25

0.04

8.3

0.07

42X-6, 46-47

384.66

76.5

0.37

0.06

7.5


43X-2, 46-47

388.26

73.5

0.22

0.05

5.5

0.08

43X-4, 46-47

391.26

77.2

0.26

0.03

9.6

0.04

43X-6, 46-47

394.26

77.6

0.28

0.05

6.7

0.05

44X-2, 46-47

397.96

76.2

0.20

0.04

5.7

0.10

44X-4, 46-47

400.96

78.1

0.21

0.03

9.2

0.13

44X-6, 46-47

403.96

81.1

0.20

0.03

6.8

0.05

46X-2, 46-47

417.16

60.7

0.17

0.04

5.6

1.09

46X-4, 46-47

420.16

71.8

0.13

0.03

6.2

0.56

46X-6, 46-47

423.16

75.1

0.12

0.02

6.4

Unit II: Lower Miocene-upper Eocene foraminifer-rich nannofossil ooze

175-1087C-







47X-4, 46-47

429.76

70.8

0.15

0.03

6.6

0.04

47X-6, 46-47

432.76

82.3

0.07

0.01

7.7

0.00

48X-2, 46-47

436.46

57.9

0.09

0.02

5.4

0.00

48X-4, 46-47

439.46

71.5

0.71

0.08

10.5

0.39

48X-6, 46-47

442.46

70.0

0.06

0.02

4.8

0.00

49X-2, 46-47

446.06

71.6

0.17

0.02

9.7

0.01

49X-4, 46-47

449.06

55.9

0.11

0.02

5.9

0.00

50X-2, 46-47

455.76

78.7

0.12

0.02

9.5

0.01

51X-2, 46-47

465.36

72.6

0.08

0.01

6.7

1.64

51X-4, 46-47

468.36

76.8

0.06

0.01

6.7

1.25

51X-6, 46-47

471.36

76.8

0.07

0.01

8.6

0.01

52X-2, 46-47

475.06

67.7

0.18

0.02

12.5

0.01

52X-4, 46-47

478.06

69.6

0.07

0.01

7.7


53X-2, 46-47

484.66

83.6

0.11

0.01

15.8


53X-4, 46-47

487.66

89.1

0.82

0.09

10.6

0.03

53X-6, 46-47

490.66

79.2

0.07

0.01

7.7

1.82

Notes: TOC = total organic carbon; TN = total nitrogen; TS = total sulfur. C/N values are calculated from TOC and TN concentrations and are given as atom/atom ratios.