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Table T18. Headspace gas composition from sediments, Site U1352. (See table note.)

Core, section
interval (cm) 		Depth
CSF-A (m) 		C1
(ppmv) 		C2
(ppmv) 		C2=
(ppmv) 		C3
(ppmv) 		C1
(mM) 		C1/C2 C2/(C2 + C2=)
(%)
317-U1352A-
1H-2, 0 1.50 0 0.0 0.00 0.00 0.000 ND ND
1H-3, 0 3.00 0 0.0 0.00 0.00 0.000 ND ND
2H-2, 0 5.70 0 0.0 0.00 0.00 0.000 ND ND
2H-3, 0 7.20 0 0.0 0.00 0.00 0.000 ND ND
2H-4, 0 8.70 0 0.0 0.00 0.00 0.000 ND ND
2H-6, 0 11.70 15 0.0 0.00 0.00 0.003 ND ND
3H-2, 0 15.20 61 0.0 0.00 0.00 0.018 ND ND
3H-4, 0 18.20 25,494 2.0 0.00 0.00 7.648 16,914 100.0
3H-6, 0 21.20 35,792 2.0 0.00 0.00 10.738 15,882 100.0
4H-2, 0 24.70 53,436 4.0 0.00 0.00 16.031 15,058 100.0
4H-4, 0 27.70 55,636 3.0 0.00 0.00 16.691 16,100 100.0
4H-6, 0 30.70 42,035 3.0 0.00 0.00 12.610 13,484 100.0
5H-2, 0 34.20 26,854 2.0 0.00 0.00 8.056 13,735 100.0
5H-4, 0 37.70 24,874 2.0 0.00 0.00 7.462 14,092 100.0
5H-6, 0 40.20 14,588 1.0 0.00 0.00 4.376 15,863 100.0
317-U1352B-
5H-8, 0 45.42 26,151 3.0 0.00 0.00 ND 9,562 100.0
6H-3, 0 49.20 36,924 4.0 0.00 0.00 ND 10,044 100.0
6H-5, 0 52.20 7,583 1.0 0.00 0.00 ND 11,855 100.0
7H-3, 0 58.70 81,015 6.0 0.00 0.00 ND 12,542 100.0
7H-5, 0 61.70 7,154 1.0 0.00 0.00 ND 8,257 100.0
8H-3, 0 68.20 40,972 6.0 0.00 0.00 ND 6,393 100.0
8H-5, 0 71.20 7,944 1.0 0.00 0.00 ND 5,595 100.0
9H-3, 0 77.70 9,221 2.0 0.00 0.00 ND 4,627 100.0
9H-5, 0 80.70 9,560 2.0 0.00 0.00 ND 4,567 100.0
10H-3, 0 85.96 17,014 3.0 0.00 0.00 ND 4,984 100.0
10H-5, 0 88.96 97,557 15.0 0.00 0.00 ND 6,431 100.0
11H-3, 0 96.70 3,799 0.0 0.00 0.00 ND 24,964 100.0
12H-3, 0 106.16 68,756 13.0 0.00 0.00 ND 5,210 100.0
13H-3, 0 115.68 12,224 3.0 0.00 0.00 ND 3,891 100.0
14H-3, 0 125.20 14,603 5.0 0.00 0.00 ND 3,056 100.0
15H-3, 0 134.63 10,296 3.0 0.00 0.00 ND 3,359 100.0
16H-3, 0 144.17 4,705 1.0 0.00 0.00 ND 4,931 100.0
18H-3, 0 159.20 13,452 5.0 0.00 0.00 ND 2,703 100.0
19H-3, 0 168.70 7,305 2.0 0.00 0.00 ND 3,513 100.0
21H-6, 0 187.20 8,165 3.0 0.00 0.00 ND 2,460 100.0
22H-3, 0 192.20 7,417 3.0 0.00 0.00 ND 2,269 100.0
23H-4, 0 203.20 6,353 2.0 0.00 0.00 ND 2,744 100.0
24H-4, 0 212.70 13,307 7.0 0.00 0.00 ND 2,011 100.0
25H-4, 0 222.20 30,961 15.0 0.00 0.00 ND 2,000 100.0
26H-4, 0 231.62 7,464 6.0 0.00 0.00 ND 1,346 100.0
27H-4, 0 241.20 12,611 7.0 0.00 0.00 ND 1,802 100.0
28H-3, 0 249.13 15,172 8.0 0.00 0.00 ND 1,805 100.0
29H-3, 0 254.20 20,873 11.0 0.00 0.00 ND 1,872 100.0
30H-4, 0 262.20 42,306 19.0 0.00 0.00 ND 2,273 100.0
31H-2, 0 268.70 17,785 11.0 0.00 0.00 ND 1,656 100.0
32H-4, 0 276.70 128,320 56.0 0.00 0.00 ND 2,292 100.0
33H-5, 0 286.14 7,080 6.0 0.00 0.00 ND 1,287 100.0
34H-3, 0 289.89 7,084 6.0 0.00 0.00 ND 1,172 100.0
35H-2, 0 294.34 5,273 3.0 0.00 0.00 ND 1,772 100.0
37X-2, 0 298.50 6,651 5.0 0.00 0.00 ND 1,268 100.0
38X-3, 0 305.60 6,301 7.0 0.00 0.00 ND 938 100.0
39X-4, 0 316.70 5,960 6.0 0.00 0.00 ND 974 100.0
40X-3, 0 324.90 8,172 8.0 0.00 0.00 ND 1,046 100.0
41X-4, 0 336.00 7,148 8.0 0.00 2.60 ND 901 100.0
42X-3, 115 345.25 48,623 32.0 0.00 1.30 ND 1,512 100.0
43X-3, 0 353.70 5,483 6.0 0.00 0.90 ND 985 100.0
44X-4, 0 364.90 10,832 9.0 0.00 0.00 ND 1,245 100.0
45X-4, 0 374.50 6,890 10.0 0.00 0.00 ND 705 100.0
46X-4, 0 384.08 10,472 11.0 0.00 0.00 ND 926 100.0
47X-4, 0 393.70 11,307 11.0 0.00 0.00 ND 1,006 100.0
48X-4, 0 403.20 27,242 31.0 0.00 2.63 ND 879 100.0
49X-2, 0 409.80 8,649 10.0 0.00 0.00 ND 871 100.0
50X-4, 0 422.40 12,184 20.0 0.19 4.53 ND 616 99.1
51X-4, 0 432.00 21,641 30.0 0.26 4.72 ND 732 99.1
52X-4, 0 441.60 11,991 15.0 0.00 2.66 ND 817 100.0
53X-4, 0 451.20 6,579 6.0 0.00 0.00 ND 1,106 100.0
54X-4, 0 460.80 4,880 8.0 0.00 0.96 ND 602 100.0
55X-2, 0 467.40 6,623 10.0 0.57 2.03 ND 648 94.8
56X-4, 0 480.00 25,963 25.0 0.00 4.18 ND 1,025 100.0
57X-3, 0 488.10 25,570 27.0 0.00 4.04 ND 961 100.0
58X-5, 0 499.42 13,012 17.0 0.00 2.19 ND 787 100.0
59X-2, 0 505.80 13,628 17.0 0.00 2.07 ND 816 100.0
61X-2, 0 524.50 9,095 15.0 0.00 3.17 ND 627 100.0
62X-4, 0 537.60 9,569 15.0 0.00 3.07 ND 652 100.0
63X-4, 0 547.20 7,234 10.0 0.00 1.09 ND 730 100.0
64X-3, 0 555.20 6,224 9.0 0.00 1.77 ND 664 100.0
68X-2, 0 581.10 11,330 16.0 0.00 3.20 ND 703 100.0
71X-3, 0 612.90 6,502 9.0 0.00 1.86 ND 686 100.0
72X-3, 0 622.47 5,582 9.0 0.00 1.49 ND 607 100.0
73X-4, 0 633.60 26,614 42.0 0.00 12.48 ND 636 100.0
74X-4, 0 643.20 11,395 17.0 0.00 4.87 ND 657 100.0
75X-4, 0 652.80 7,364 17.0 0.00 6.44 ND 433 100.0
76X-4, 0 662.40 21,834 30.0 0.00 9.69 ND 722 100.0
77X-2, 0 669.10 10,013 19.0 0.00 7.80 ND 539 100.0
78X-2, 0 678.80 7,445 14.0 0.00 6.79 ND 538 100.0
79X-1, 51 687.41 4,523 11.0 0.53 8.11 ND 423 95.3
81X-3, 0 709.10 12,034 19.0 0.00 5.12 ND 643 100.0
85X-3, 0 737.90 6,292 13.0 0.00 7.82 ND 468 100.0
87X-1, 0 755.35 5,706 11.0 0.00 6.82 ND 531 100.0
88X-2, 0 765.10 7,367 17.0 0.00 12.21 ND 437 100.0
90X-1, 51 783.41 12,780 27.0 0.00 20.43 ND 471 100.0
317-U1352C-
3R-3, 0 587.10 1,539 4.0 0.48 0.23 ND 376 89.4
6R-1, 0 660.80 10,742 16.0 0.00 4.99 ND 683 100.0
7R-2, 0 670.26 6,056 9.0 0.00 3.71 ND 638 100.0
8R-1, 49 679.79 12,729 16.0 0.00 5.28 ND 803 100.0
9R-1, 79 689.79 3,675 7.0 0.00 3.05 ND 543 100.0
10R-2, 145 700.79 5,874 10.0 0.00 4.97 ND 584 100.0
11R-1, 72 709.12 11,124 17.0 0.00 7.11 ND 645 100.0
12R-1, 130 719.40 5,817 13.0 0.00 8.43 ND 464 100.0
13R-1, 105 728.85 2,690 5.0 0.00 2.97 ND 539 100.0
14R-2, 79 739.79 11,821 27.0 0.00 21.54 ND 431 100.0
15R-2, 102 749.58 5,593 13.0 0.00 9.42 ND 436 100.0
16R-2, 0 758.27 2,201 3.0 0.00 1.66 ND 687 100.0
17R-2, 0 768.07 6,361 15.0 0.00 11.26 ND 437 100.0
18R-3, 87 779.68 3,851 8.0 0.00 6.06 ND 501 100.0
19R-2, 0 787.50 10,336 31.0 0.00 31.38 ND 330 100.0
20R-2, 0 797.09 3,310 10.0 0.00 9.42 ND 337 100.0
21R-2, 0 806.80 7,071 15.0 0.00 12.21 ND 459 100.0
22R-2, 0 816.42 9,388 26.0 0.00 24.39 ND 361 100.0
23R-2, 0 825.60 756 1.0 0.00 0.00 ND 516 100.0
24R-2, 0 835.63 12,979 31.0 0.00 23.53 ND 418 100.0
25R-2, 0 845.30 4,490 13.0 0.00 12.03 ND 344 100.0
26R-2, 70 855.28 1,718 5.0 0.00 4.24 ND 345 100.0
27R-2, 56 864.56 6,285 18.0 0.00 14.26 ND 353 100.0
28R-1, 126 873.86 9,454 27.0 0.00 22.03 ND 344 100.0
29R-2, 0 883.23 5,046 16.0 0.00 13.58 ND 322 100.0
30R-1, 148 893.28 2,543 10.0 0.00 12.62 ND 261 100.0
31R-1, 124 902.54 6,316 21.0 0.00 21.11 ND 303 100.0
32R-1, 120 912.10 3,173 13.0 0.00 16.80 ND 243 100.0
33R-3, 0 923.25 5,267 23.0 0.00 25.42 ND 228 100.0
34R-2, 0 931.17 3,604 15.0 0.00 15.33 ND 236 100.0
35R-2, 0 941.20 4,132 17.0 0.00 14.89 ND 250 100.0
36R-3, 0 952.40 993 7.0 0.00 6.20 ND 145 100.0
37R-3, 115 962.81 2,284 12.0 0.00 9.28 ND 184 100.0
38R-4, 0 973.00 6,013 31.0 0.00 28.96 ND 195 100.0
39R-5, 0 984.10 2,687 20.0 0.00 21.97 ND 136 100.0
40R-2, 0 989.01 6,032 33.0 0.00 32.95 ND 181 100.0
41R-5, 0 1003.30 7,078 47.0 0.00 60.72 ND 151 100.0
42R-4, 0 1010.94 1,047 5.0 0.00 5.19 ND 210 100.0
43R-2, 0 1017.93 2,555 18.0 0.00 20.34 ND 144 100.0
44R-3, 0 1029.10 3,972 27.0 0.00 31.04 ND 148 100.0
45R-2, 0 1037.11 1,342 9.0 0.00 12.07 ND 153 100.0
46R-2, 148 1048.22 998 7.0 0.00 11.08 ND 134 100.0
47R-2, 0 1056.18 1,587 13.0 0.00 16.37 ND 124 100.0
48R-2, 0 1065.88 1,818 17.0 0.00 23.36 ND 108 100.0
49R-3, 0 1076.77 2,480 18.0 0.00 22.36 ND 138 100.0
50R-6, 0 1092.25 449 7.0 0.00 13.08 ND 62 100.0
51R-3, 145 1097.32 2,585 23.0 0.00 29.40 ND 110 100.0
52R-2, 0 1103.90 4,579 39.0 0.00 38.56 ND 118 100.0
53R-2, 0 1113.54 1,684 17.0 0.00 19.58 ND 98 100.0
54R-4, 0 1126.18 3,135 30.0 0.00 31.54 ND 104 100.0
55R-4, 0 1135.50 3,453 40.0 0.00 47.44 ND 86 100.0
56R-4, 0 1145.28 384 9.0 0.00 17.24 ND 42 100.0
57R-2, 149 1153.49 1,590 20.0 0.00 23.72 ND 80 100.0
58R-5, 0 1164.57 913 13.0 0.00 16.34 ND 72 100.0
59R-7, 0 1178.70 5,057 63.0 0.00 64.03 ND 80 100.0
60R-4, 0 1183.90 3,193 40.0 0.00 38.36 ND 79 100.0
61R-4, 0 1193.50 4,052 54.0 0.00 54.66 ND 74 100.0
62R-3, 0 1201.60 2,908 44.0 0.00 49.65 ND 66 100.0
63R-CC, 0 1208.20 3,376 58.0 0.00 69.87 ND 58 100.0
65R-1, 0 1221.40 3,629 60.0 0.00 64.19 ND 60 100.0
70R-4, 0 1251.03 1,747 17.0 0.00 10.25 ND 101 100.0
71R-3, 0 1259.30 2,238 38.0 0.00 31.51 ND 59 100.0
72R-1, 0 1265.80 3,195 62.0 0.00 56.90 ND 52 100.0
73R-3, 0 1278.00 1,990 39.0 0.00 31.95 ND 52 100.0
76R-1, 107 1304.97 1,331 33.0 0.00 30.19 ND 41 100.0
77R-1, 145 1309.85 420 10.0 0.00 9.47 ND 42 100.0
78R-2, 145 1316.29 518 13.0 0.00 9.43 ND 41 100.0
79R-1, 145 1319.35 719 17.0 0.00 12.93 ND 42 100.0
80R-2, 145 1325.85 145 4.0 0.00 3.29 ND 40 100.0
81R-2, 0 1329.00 68 3.0 0.00 2.57 ND 23 100.0
82R-1, 41 1332.91 358 8.0 0.00 5.06 ND 45 100.0
84R-CC, 5 1342.15 240 9.0 0.00 8.06 ND 27 100.0
85R-3, 149 1351.19 369 9.0 0.00 2.94 ND 39 100.0
86R-2, 0 1353.16 224 7.0 0.00 2.76 ND 34 100.0
87R-5, 0 1367.40 68 3.0 0.00 0.49 ND 20 100.0
88R-4, 0 1375.50 116 8.0 0.00 0.76 ND 14 100.0
89R-4, 0 1384.89 42 6.0 0.00 0.00 ND 7 100.0
90R-3, 0 1393.20 49 6.0 0.00 0.00 ND 9 100.0
91R-5, 0 1405.70 78 4.0 0.00 0.00 ND 21 100.0
94R-6, 0 1436.10 551 14.0 0.00 0.00 ND 38 100.0
95R-4, 0 1442.80 514 12.0 0.00 0.00 ND 42 100.0
99R-1, 0 1477.00 1,710 33.0 0.00 2.92 ND 51 100.0
103R-5, 0 1512.10 4,282 83.0 0.00 7.92 ND 52 100.0
104R-5, 0 1521.80 3,909 77.0 0.00 7.11 ND 50 100.0
105R-6, 0 1532.73 3,961 68.0 0.00 5.46 ND 58 100.0
106R-3, 0 1538.20 10,228 189.0 0.00 16.89 ND 54 100.0
107R-6, 0 1552.37 3,546 64.0 0.00 3.95 ND 56 100.0
108R-2, 0 1556.05 3,540 72.0 0.00 5.29 ND 49 100.0
109R-3, 0 1567.24 6,001 133.0 0.00 15.30 ND 45 100.0
110R-2, 0 1575.57 3,220 56.0 0.00 5.31 ND 57 100.0
111R-2, 1.4 1586.63 4,880 96.0 0.00 10.48 ND 51 100.0
112R-1, 1.4 1594.91 4,066 73.0 0.00 7.42 ND 55 100.0
113R-4, 1.4 1609.14 4,893 91.0 0.00 10.63 ND 54 100.0
114R-2, 1.5 1615.89 4,446 92.0 0.00 13.81 ND 48 100.0
115R-4, 0 1627.20 6,534 121.0 0.00 17.37 ND 54 100.0
116R-2, 1.4 1635.38 3,178 92.0 0.00 17.39 ND 35 100.0
117R-5, 0 1647.27 8,769 206.0 0.00 47.46 ND 42 100.0
118R-6, 0 1658.02 3,151 122.0 0.00 34.42 ND 26 100.0
119R-4, 0 1666.00 9,951 184.0 0.00 47.85 ND 54 100.0
120R-CC, 0.5 1669.36 21,832 445.0 0.00 136.97 ND 49 100.0
121R-CC, 0.1 1678.60 6,817 175.0 0.00 58.16 ND 39 100.0
122R-2, 0 1689.60 18,311 333.0 0.00 108.49 ND 55 100.0
123R-3, 0.1 1696.41 8,713 159.0 0.00 46.16 ND 55 100.0
124R-4, 1.5 1703.43 11,331 197.0 0.00 61.48 ND 57 100.0
125R-2, 0 1708.50 6,200 106.0 0.00 29.55 ND 59 100.0
126R-4, 0 1721.00 6,526 106.0 0.00 28.04 ND 61 100.0
127R-1, 1.5 1727.69 5,394 83.0 0.00 19.24 ND 65 100.0
128R-3, 0 1738.80 7,763 135.0 0.00 40.38 ND 57 100.0
129R-3, 0 1749.48 4,986 71.0 0.00 12.73 ND 70 100.0
130R-3, 0 1757.98 17,588 247.0 0.00 56.95 ND 71 100.0
131R-2, 0 1766.02 9,421 144.0 0.00 36.71 ND 65 100.0
132R-2, 0 1775.67 10,727 165.0 0.00 43.07 ND 65 100.0
133R-4, 0 1788.08 5,580 90.0 0.00 17.47 ND 62 100.0
134R-2, 114 1795.77 5,942 82.0 0.00 13.21 ND 73 100.0
135R-3, 0 1805.89 10,613 141.0 0.00 27.16 ND 75 100.0
136R-2, 0 1814.12 10,058 155.0 0.00 30.81 ND 65 100.0
137R-2, 0 1823.80 4,250 58.0 0.00 10.22 ND 73 100.0
138R-6, 0 1839.39 13,890 187.0 0.00 29.73 ND 74 100.0
139R-4, 0 1845.89 2,385 54.0 0.00 15.51 ND 44 100.0
140R-1, 0 1851.10 13,605 183.0 0.00 33.42 ND 74 100.0
141R-2, 0 1862.02 16,754 234.0 0.00 41.65 ND 72 100.0
142R-1, 0 1870.40 12,163 176.0 0.00 35.06 ND 69 100.0
143R-1, 149 1876.49 5,301 84.0 0.00 15.42 ND 63 100.0
144R-3, 101 1883.96 6,144 87.0 0.00 13.05 ND 71 100.0
145R-1, 144 1890.94 7,065 105.0 0.00 17.42 ND 67 100.0
146R-2, 5 1900.25 7,412 118.0 0.00 20.19 ND 63 100.0
147R-4, 0 1912.68 15,971 239.0 0.00 39.71 ND 67 100.0
148R-4, 0 1922.35 14,976 227.0 0.00 37.39 ND 66 100.0

Note: ND = not determined.

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