Table 4. 
D and 13C composition of selected methane samples.
| Core, section |
Depth (mbsf) |
D (  SMOW) |
13C ( PDB) |
|---|---|---|---|
164-994C- |
|||
5H-4 |
38.90 |
-183 |
-80.6 |
6H-3 |
45.10 |
-187 |
-81.8 |
8H-3 |
64.40 |
-178 |
-76.6 |
5H-4 |
38.90 |
-183 |
-80.6 |
14H-5 |
117.30 |
-183 |
-68.1 |
17H-4 |
141.40 |
-190 |
-64.3 |
25X-2 |
550.30 |
-185 |
-67.7 |
30X-3 |
244.00 |
-191 |
-68.1 |
40X-2 |
331.00 |
-138 |
-71.8 |
41X-4 |
341.77 |
-178 |
-69.8 |
50X-1 |
406.70 |
-180 |
-69.6 |
50X-2 |
407.00 |
-198 |
-61.6 |
62X-3 |
513.80 |
-200 |
-- |
67X-2 |
542.50 |
-175 |
-67.5 |
80X-5 |
661.21 |
-203 |
-63.5 |
81X-5 |
670.64 |
-195 |
-63.7 |
164-996B- |
|||
1H* |
0.20 |
-200 |
-- |
164-996D- |
|||
1H* |
0.20 |
-136 |
-65.8 |
1H* |
0.20 |
-175 |
-66.6 |
4H-1 |
23.18 |
-191 |
-- |
9H-6 |
49.05 |
-192 |
-- |
164-996E- |
|||
7H-CC* |
52.90 |
-193 |
-70.7 |
164-997A- |
|||
5H-3 |
34.90 |
-256 |
-82.4 |
9H-6 |
74.00 |
-181 |
-73.0 |
13H-7 |
107.58 |
-166 |
-72.3 |
13H-7 |
107.58 |
-196 |
-72.3 |
16H-3 |
131.00 |
-186 |
-- |
18P-1 |
147.00 |
-187 |
-67.8 |
22X-4 |
216.60 |
-184 |
-64.8 |
28X-2 |
386.90 |
-190 |
-66.5 |
41X-3 |
321.80 |
-196 |
-65.0 |
42X-3* |
331.00 |
-191 |
-65.8 |
48X-2 |
386.90 |
-181 |
-64.6 |
54X-4 |
427.98 |
-150 |
-65.4 |
164-997B- |
|||
8X-4 |
448.80 |
-165 |
-59.7 |
12X-3 |
474.21 |
-230 |
-64.5 |
14X-2 |
492.00 |
-189 |
-64.2 |
15P |
501.80 |
-183 |
-64.4 |
18X-2 |
521.60 |
-197 |
-63.9 |
37X-1 |
665.50 |
-195 |
-61.6 |
47X-4 |
745.70 |
-201 |
-64.4 |
47X-4 |
745.70 |
-192 |
-64.4 |
Note: * = gas hydrate sample. -- = no data.