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Table T21. Headspace sample hydrocarbon concentrations, Holes U1389A and U1389E.

Core,
section 		Depth
(mbsf) 		Concentration (ppmv) C1/(C2 + C3)
Methane Ethene Ethane Propene Propane
339-U1389A-
1H-3 3.00 106.30 — — — — —
2H-7 13.32 1,021.68 — — — — —
3H-7 22.75 3,642.55 0.41 — — 0.39 4,553.19
4H-7 32.39 18,011.93 — — — — —
5H-7 41.97 34,520.36 — 0.96 — 0.34 26,554.12
6H-7 51.42 26,015.53 0.44 0.65 — 0.71 14,453.07
7H-7 60.60 6,435.64 — — 0.33 — 19,501.94
8H-7 70.39 23,949.65 — — — — —
9H-7 79.95 15,410.33 — 0.53 — — 29,076.09
10H-7 89.37 7,894.85 — — 0.44 0.40 9,398.63
11H-5 95.50 17,142.61 — — — — —
12X-3 100.21 71,003.90 1.08 1.88 0.37 0.40 19,035.90
13X-5 107.70 18,018.58 — 1.23 — — 14,649.25
14X-6 117.67 32,071.49 — 1.34 — — 23,933.95
15X-5 126.80 31,766.33 0.91 1.24 — — 14,775.04
16X-6 136.81 14,941.45 0.63 0.84 — — 10,164.25
17X-5 145.17 7,115.41 0.41 0.49 — — 7,906.01
18X-5 155.50 12,122.29 — 0.51 0.44 0.33 9,470.54
19X-6 165.22 7,396.76 0.62 — 0.86 — 4,997.81
20X-5 173.90 5,759.08 — — 0.30 — 19,196.93
21X-6 184.51 28,783.86 0.56 1.84 — — 11,993.28
22X-5 193.14 16,641.53 0.41 1.72 — — 7,812.92
23X-5 203.30 8,873.00 0.48 0.79 — — 6,986.61
24X-4 210.99 6,393.55 — 0.79 — — 8,093.10
25X-5 222.10 15,838.39 0.58 1.58 — — 7,332.59
26X-4 230.70 18,867.26 0.91 1.89 — — 6,738.31
27X-4 239.64 8,027.02 1.18 1.60 — — 2,887.42
28X-5 251.30 9,609.41 1.08 2.40 — — 2,761.32
29X-7 263.50 2,184.41 — 0.76 — — 2,874.22
30X-7 272.54 3,118.62 — 1.87 — — 1,667.71
31X-6 281.75 4,750.98 — 1.96 — — 2,423.97
32X-7 292.31 4,685.99 — 1.42 — — 3,299.99
33X-6 300.90 6,504.06 — 2.38 — — 2,732.80
34X-7 311.17 8,451.35 0.69 5.82 — — 1,298.21
35X-3 315.61 5,423.46 1.17 2.34 0.42 — 1,380.02
35X-6 319.70 2,278.92 — 1.75 — — 1,302.24
36X-2 323.30 4,353.27 — 2.77 — — 1,571.58
37X-4 335.66 4,843.29 — 4.40 — — 1,100.75
38X-3 344.00 6,612.31 — 4.65 — — 1,422.00
39X-1 350.50 6,881.96 1.69 9.74 — — 602.10
339-U1389E-
4R-3 351.80 9,685.18 1.66 16.35 — — 537.77
5R-3 361.40 14,550.22 0.47 12.60 — — 1,113.25
6R-1 368.00 7,105.94 0.73 10.14 — — 653.72
8R-3 390.10 2,647.43 — 5.54 — 0.44 442.71
9R-4 401.20 1,774.19 — 3.63 — — 488.76
10R-2 407.51 1,191.04 0.51 2.97 — — 342.25
11R-4 420.40 3,277.63 — 4.92 0.31 — 626.70
12R-6 433.00 2,490.19 — 4.29 — — 580.46
13R-6 442.32 2,063.07 0.48 3.47 — — 522.30
14R-4 449.20 1,362.84 — 1.58 0.36 — 702.49
15R-2 455.80 10,277.39 1.24 17.52 — — 547.84
16R-1 463.80 9,980.84 0.98 17.06 — — 553.26
17R-3 476.30 10,051.18 1.45 19.88 — — 471.22
18R-2 484.30 8,115.41 1.11 12.90 0.44 — 561.62
19R-2 493.80 10,484.87 1.43 19.22 — 0.31 500.23
20R-4 506.30 8,494.00 1.82 28.55 — — 279.68
21R-2 512.80 3,663.42 — 7.86 — — 466.08
22R-3 523.80 10,233.68 1.20 22.48 0.46 — 423.93
23R-3 533.25 7,457.95 1.10 27.37 — — 261.96
24R-6 547.16 4,109.59 0.91 9.43 — — 397.45
25R-6 557.30 3,349.22 0.76 8.70 — — 354.04
26R-6 566.65 2,331.31 0.67 9.48 — — 229.69
27R-4 573.11 1,628.86 0.63 5.32 — — 273.76
28R-6 586.10 479.91 0.72 1.11 — — 262.25
29R-5 594.20 1,597.85 — 4.56 — — 350.41
30R-7 606.80 1,263.78 — 6.79 — — 186.12
31R-7 616.40 2,412.92 — 6.58 — — 366.71
32R-4 621.50 5,442.74 1.21 28.93 — — 180.58
33R-3 629.60 8,090.11 2.36 31.62 — — 238.08
34R-3 639.30 6,239.52 1.09 30.93 — — 194.86
35R-4 650.50 7,939.25 1.62 41.35 — — 184.76
37R-5 670.43 6,178.68 1.54 24.68 — — 235.65
38R-3 677.70 7,452.62 1.62 40.73 — — 175.98
39R-4 688.80 3,711.06 1.10 15.89 — — 218.43
40R-4 698.50 929.95 — 3.75 0.35 — 226.82
41R-4 708.10 1,857.12 — 4.07 — — 456.29
42R-5 719.03 5,865.74 — 13.34 — 0.90 411.92
43R-5 728.70 3,831.56 0.87 19.47 — — 188.38
44R-4 736.84 2,957.70 — 9.08 — — 325.74
45R-7 750.72 932.06 0.73 5.74 — — 144.06
46R-5 757.54 13,654.28 2.90 89.19 — 17.50 124.59
47R-2 762.60 5,097.19 1.60 34.74 — 7.30 116.80
48R-2 772.29 4,798.57 1.55 30.74 0.38 1.00 142.52
49R-3 782.80 8,784.53 1.48 46.59 — 7.73 157.43
50R-1 789.90 18,107.63 2.44 125.11 0.76 37.11 109.46
51R-6 806.97 15,788.83 1.65 90.98 — 0.93 168.76
52R-9 818.73 1,244.99 0.86 12.46 — 0.43 90.54
53R-2 819.72 2,963.83 — 16.66 — — 177.90
54R-2 830.13 3,797.47 0.54 15.30 — — 239.74
56R-CC 847.75 1,884.53 — 11.55 — — 163.16
57R-7 866.13 1,232.43 1.28 19.99 0.32 9.55 39.58
58R-7 875.33 1,130.43 0.69 8.67 — 0.43 115.47
60R-1 885.90 8,490.25 1.76 60.44 — 18.98 104.59
62R-1 905.10 23,759.42 2.92 244.48 1.51 91.98 69.70
63R-4 918.15 6,509.83 1.27 45.77 — 16.17 102.99
64R-4 929.00 5,421.53 1.66 52.86 — 22.34 70.54
65R-5 940.00 2,329.88 1.91 17.31 0.42 0.57 115.28
66R-1 944.41 940.64 1.12 11.47 — — 74.71
67R-3 955.74 1,799.29 1.01 15.99 — — 105.84
68R-1 962.90 6,516.72 1.33 39.16 — 14.17 119.22
69R-1 972.40 12,912.91 3.41 148.71 — 67.32 58.84
70R-1 981.90 579.15 — 7.49 — 0.00 77.32

— = no data.

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