Table
T8. Headspace gas composition, Site 1198.
Core,
section
Depth
(mbsf)
C1
(ppmv)
C2
(ppmv)
194-1198A-
1H-3
3.00
2.20
0.0
2H-5
11.00
2.10
0.0
3H-5
20.50
1.80
0.0
4H-5
30.00
2.30
0.0
5H-5
39.50
1.90
0.0
7H-4
57.00
2.00
0.0
8H-5
68.00
1.90
0.0
9H-5
77.50
2.00
0.0
10H-5
87.00
1.90
0.0
11H-5
96.50
1.80
0.0
12H-5
106.00
2.00
0.0
13H-5
115.50
1.70
0.0
14H-5
125.00
2.00
0.0
15H-5
134.50
1.80
0.0
16H-5
144.00
2.20
0.0
17H-5
153.50
1.90
0.0
18H-5
163.00
1.90
0.0
19H-5
172.50
2.00
0.0
20H-5
182.00
2.10
0.0
21H-5
191.50
2.00
0.0
22H-4
199.50
2.00
0.0
194-1198B-
1R-1
196.69
2.20
0.0
11R-1
291.80
1.80
0.0
17R-2
350.24
2.00
0.0
18R-3
361.92
2.20
0.0
19R-2
369.63
1.90
0.0
20R-2
379.67
1.90
0.0
21R-3
390.58
1.90
0.0
22R-5
403.60
2.80
0.0
23R-5
413.78
3.00
0.0
25R-5
432.40
2.60
0.0
26R-5
442.00
6.60
3.3
28R-5
461.15
2.60
0.0
31R-4
488.10
2.50
0.0
32R-5
499.25
2.30
0.0
33R-2
504.82
2.00
0.0
Note: C1 = methane, C2 = ethane.