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Table 3. Residual hydrocarbon gas concentrations (µL/L) at Sites 994, 995, and 997.
 
Core, section Depth (mbsf) C1 C2= C2 C3 C3= iC4 n-C4 neoC5 iC5 n-C5 cycloC5 neoC6 iC6 n-C6 iC7 methylcyclo
C6 and n-C7		 C1/(C2+C3)


µL/L wet sediment

164-994C-




























2H-3
8.9
80
0.0
0.3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
250

5H-4
38.9
33,700
0.0
2.3
6.3
0.0
0.6
0.0
0.0
0.3
0.0
0.0
0.0
0.1
0.1
0.0
0.0
3,900

7H-6
60.9
31,400
0.0
1.8
1.1
0.0
0.6
0.0
0.0
0.2
0.0
0.0
0.0
0.1
1.0
0.0
0.0
11,000

8H-2
64.4
14,300
0.0
1.4
1.4
0.0
0.6
0.1
0.0
0.2
0.0
0.0
0.0
0.0
0.3
0.0
0.0
5,000

11H-2
84.3
18,900
0.0
1.6
1.9
0.0
1.1
0.3
0.0
0.8
0.0
0.0
0.0
0.3
0.3
0.0
0.0
5,400

14H-5
117.3
13,500
0.0
1.2
0.9
0.0
1.0
0.2
0.0
1.0
0.0
0.0
0.0
0.1
0.8
0.0
0.0
6,500

17H-2
141.4
4,150
0.0
0.7
1.2
0.0
1.6
0.4
0.0
3.9
0.0
0.1
0.0
0.4
0.4
0.2
0.3
2,200

21X-2
167.8
24,600
0.0
3.1
4.4
0.0
6.2
1.5
0.0
17.6
0.4
0.2
0.0
1.0
0.5
0.2
0.3
3,300

21X-1
195.1
33,100
0.0
3.6
5.6
0.0
10.2
2.8
0.0
36.4
0.9
0.4
0.0
4.5
1.9
0.7
0.8
3,600

30X-2
243.7
7,020
0.0
2.3
2.1
0.0
2.2
1.2
0.0
8.0
0.6
0.2
0.0
0.9
1.0
0.2
0.2
1,600

31X-6
259.4
18,100
0.0
6.3
4.9
0.0
5.1
2.9
0.0
12.2
0.9
0.3
0.1
1.5
1.7
0.3
0.4
1,600

33X-2
273.2
6,610
0.0
1.7
2.6
0.0
3.0
1.9
0.0
11.4
0.9
0.2
0.1
2.0
2.4
0.6
0.5
1,500

39X-1
319.5
7,130
0.0
5.4
4.7
0.0
5.2
2.8
0.0
8.5
0.8
0.2
0.0
0.7
1.5
0.5
0.5
710

39X-1
319.5
10,100
0.0
3.9
4.1
0.0
4.0
2.4
0.0
5.6
0.7
0.2
0.0
0.8
1.8
0.5
0.5
1,300

42X-3
352.0
5,260
0.0
4.9
1.5
0.0
1.6
1.0
0.0
9.1
0.6
0.1
0.0
0.9
1.4
0.2
0.3
820

46X-2
379.3
4,210
0.0
4.3
0.6
0.0
1.4
0.9
0.0
9.4
0.6
0.2
0.0
1.0
1.5
0.4
0.4
860

50X-1
406.7
18,300
0.0
17.0
8.1
0.0
6.5
3.4
0.0
18.5
0.9
0.2
0.1
1.9
2.3
0.5
0.3
730

54X-4
440.0
12,500
0.0
14.9
3.9
0.0
3.0
2.0
0.0
10.6
0.8
0.2
0.1
1.2
2.2
0.6
0.3
660

57X-1
464.6
6,020
0.0
7.7
3.3
0.0
2.2
1.7
0.0
6.3
0.6
0.1
0.1
1.0
2.3
0.9
0.5
550

61X-2
495.7
12,600
0.0
20.7
4.2
0.1
3.0
1.9
0.1
6.4
0.8
0.2
0.2
1.6
3.9
1.5
1.2
510

64X-3
525.1
9,060
0.2
18.7
4.9
0.2
1.5
1.6
0.1
2.5
0.3
0.1
0.1
0.6
1.3
0.5
0.0
390

68X-3
553.3
15,000
0.0
21.2
4.1
0.0
1.2
1.5
0.0
2.8
0.4
0.0
0.1
0.6
2.4
0.9
0.4
590

72X-2
581.2
13,900
0.0
30.9
4.6
0.0
2.1
1.6
0.0
2.6
1.3
0.1
0.1
0.8
9.3
0.4
0.0
390

75X-4
613.0
4,680
0.3
21.2
8.6
0.2
3.8
5.5
0.1
6.0
1.2
0.3
0.4
2.2
6.1
1.9
1.9
160

78X-2
639.0
10,900
0.0
36.0
8.0
0.0
2.7
3.4
0.1
3.3
0.6
0.2
0.2
1.2
3.2
1.9
2.6
250

81X-3
668.3
9,120
0.0
29.0
5.7
0.0
2.7
2.3
0.2
4.3
0.9
0.2
0.3
1.3
4.5
1.8
0.9
260

84X-2
696.5
14,600
0.5
71.3
16.3
0.2
3.9
4.1
0.1
4.5
0.6
0.2
0.2
1.4
3.5
1.8
1.3
170

164-995A-




























2H-2
4.7
10
0.2
0.1
0.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
40

5H-1
31.6
24,400
0.0
1.4
0.9
0.0
0.2
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.2
0.0
0.0
10,400

8H-2
61.6
3,450
0.0
0.4
0.6
0.0
0.4
0.0
0.0
0.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
3,500

12H-5
94.6
2,460
0.0
0.6
0.9
0.0
1.0
0.1
0.0
1.0
0.0
0.0
0.0
0.1
0.3
0.0
0.0
1,700

15H-3
121.2
26,100
0.0
2.3
2.3
0.0
2.3
0.3
0.0
2.9
0.0
0.0
0.0
0.2
0.3
0.0
0.1
5,600

17H-4
141.4
12,100
0.0
1.7
2.7
0.0
5.2
0.7
0.0
9.7
0.0
0.1
0.0
0.4
0.4
0.1
0.1
2,700

19H-5
152.7
2,340
0.0
0.6
1.0
0.0
1.9
0.4
0.0
9.5
0.0
0.1
0.0
0.8
0.5
0.0
0.0
1,500

22X-2
177.6
9,530
0.0
1.4
2.1
0.0
4.5
0.9
0.0
8.5
0.4
0.2
0.0
1.9
0.4
0.2
0.3
2,700

25X-3
208.0
12,300
0.0
3.1
1.9
0.0
2.9
0.7
0.0
16.4
0.4
0.1
0.0
2.2
1.0
0.3
0.3
2,500

30X-2
246.8
13,700
0.0
5.8
1.4
0.0
0.9
0.6
0.0
3.6
0.3
0.1
0.0
0.6
0.9
0.0
0.0
1,900

30X-3
248.5
21,500
0.0
5.0
5.8
0.0
5.3
2.5
0.0
9.3
0.5
0.3
0.0
0.8
1.2
0.2
0.2
2,000

33X-2
274.5
12,000
0.0
5.2
2.4
0.0
2.6
1.1
0.0
5.9
0.6
0.2
0.0
1.0
1.5
0.2
0.0
1,600

40X-2
331.6
6,610
0.0
2.7
2.9
0.0
2.2
1.6
0.0
2.7
0.4
0.2
0.0
0.7
1.3
0.2
0.0
1,200

43X-3
362.7
18,700
0.0
14.0
0.9
0.0
3.4
2.1
0.0
3.4
0.5
0.2
0.1
0.8
1.3
0.3
0.0
1,300

47X-2
389.8
10,800
0.0
14.0
4.0
0.0
2.5
1.5
0.0
4.8
0.5
0.1
0.0
0.6
1.0
0.0
0.0
600

51X-2
418.7
16,000
0.0
31.2
5.6
0.0
3.0
1.7
0.0
5.4
0.5
0.1
0.0
0.6
1.3
0.3
0.0
430

54X-3
439.7
13,700
0.0
29.6
4.5
0.0
2.4
1.4
0.0
5.8
0.6
0.2
0.2
1.1
2.6
0.7
0.4
400

57X-2
467.2
3,740
0.0
5.8
5.4
0.0
2.7
1.6
0.0
4.3
0.3
0.1
0.1
0.3
1.7
0.7
0.2
330

62X-3
506.5
3,740
0.0
6.8
1.7
0.0
0.6
0.4
0.0
0.9
0.0
0.0
0.0
0.2
0.2
0.3
0.0
440

65X-3
536.5
8,650
0.0
14.3
3.2
0.0
1.0
0.8
0.0
1.3
0.0
0.0
0.0
0.2
0.7
0.3
0.0
490

68X-2
563.4
8,190
0.0
16.3
3.1
0.0
0.9
0.8
0.0
1.4
0.2
0.0
0.0
0.3
1.0
0.5
0.0
420

73X-4
613.0
7,190
0.0
33.7
10.9
0.0
3.0
2.9
0.2
4.4
0.5
0.1
0.2
0.9
2.5
0.9
0.5
160

77X-3
640.2
8,190
0.2
27.3
6.8
0.2
1.8
2.2
0.1
2.5
0.4
0.1
0.2
0.6
2.2
0.9
0.5
240

80X-4
671.4
8,950
0.0
26.8
6.8
0.0
1.8
1.6
0.0
1.8
0.2
0.0
0.0
0.0
0.7
0.4
0.0
270

83X-4
700.8
6,670
0.0
25.0
6.0
0.0
1.6
1.5
0.0
2.2
0.2
0.0
0.1
0.2
1.0
0.5
0.0
210

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