Table T15. Concentrations of C1 to C6 hydrocarbons in headspace gas, Hole 1276A.
Core, section, interval (cm)
Depth (mbsf)
C1/C2
C1
(ppmv)
C2 (ppmv)
C2= (ppmv)
C3 (ppmv)
C3= (ppmv)
i-C4 (ppmv)
n-C4 (ppmv)
i-C5 (ppmv)
n-C5 (ppmv)
i-C6 (ppmv)
n-C6 (ppmv)
210-1276A-












2R-2, 0-5 801.50
4.5









2R-3, 0-5 803.00
7.4









3R-3, 0-5 811.18
3.5









3R-4, 0-5 812.68
3.2









3R-7, 0-5 817.17
3.7









4R-2, 0-5 820.70
5.2









4R-4, 0-5 823.70
2.4









4R-5, 0-5 825.20
5.3









5R-2, 0-5 830.30
3.8









5R-4, 0-5 833.30
3.3









5R-6, 0-5 836.30
4.7









6R-2, 0-5 839.90
3.1









6R-4, 0-5 842.90
1.6









6R-6, 0-5 845.90
4.1









7R-1, 0-5 848.00
1.7









7R-4, 0-5 852.50
2.9









7R-6, 0-5 855.50
3.0









8R-2, 0-5 859.10
1.8









8R-4, 0-5 862.10
2.2









8R-6, 0-5 865.10
2.0









9R-2, 0-5 868.70
2.2









9R-4, 0-5 871.70
1.6









9R-6, 0-5 874.61
1.7









10R-2, 0-5 878.30
1.8









10R-4, 0-5 881.27
1.6









10R-6, 0-5 884.11
1.7









11R-2, 0-5 887.90
1.9









11R-4, 0-5 890.90
1.6









11R-6, 0-5 893.57
1.8









12R-2, 0-5 897.50
1.9









12R-5, 0-5 902.00
1.5









13R-3, 0-5 908.70
1.7









13R-4, 64-69 910.34
1.5









14R-1, 0-1 915.30
1.5









14R-2, 0-1 916.80
1.8









15R-2, 0-1 926.50
2.2









15R-4, 0-1 929.50
2.5









16R-1, 0-1 934.50
1.7









16R-3, 0-1 937.46 6.0 4.2 0.7








17R-2, 0-1 945.36
2.7









17R-7, 0-1 952.31
3.6









18R-1, 0-1 953.80 3.8 3.8 1.0








18R-5, 0-1 959.12
1.9









19R-3, 0-1 966.39
3.3









19R-5, 0-1 969.17
3.3









20R-1, 0-1 973.10 4.8 2.9 0.6








20R-4, 0-1 977.21
4.4









21R-3, 0-1 985.46
3.9









21R-4, 0-1 986.96 6.2 6.8 1.1








22R-3, 0-1 995.40
3.1









23R-2, 0-5 1,003.39
3.1









24R-2, 0-1 1,013.10
1.6









24R-4, 0-1 1,016.10
4.9









25R-2, 0-1 1,022.70
2.7









25R-4, 0-1 1,025.70
2.5









26R-2, 0-1 1,032.26
1.7









27R-1, 0-1 1,040.50
1.9









27R-3, 0-1 1,043.41
2.2









28R-1, 0-1 1,050.10
1.6









28R-3, 0-1 1,052.91
1.8









29R-1, 0-1 1,059.70
1.7









29R-3, 0-1 1,062.53
1.8









30R-1, 0-1 1,069.40
2.1









30R-3, 0-1 1,072.13
2.4









31R-1, 0-1 1,079.00
2.3









31R-4, 0-1 1,083.39
2.5









32R-1, 0-1 1,088.60
1.9









32R-4, 0-1 1,092.97
2.0









33R-1, 0-1 1,098.20
2.2









33R-4, 0-1 1,102.70
1.8









34R-4, 0-1 1,112.13 2.2 2.6 1.2 1.0







35R-2, 0-1 1,118.90
1.6









35R-5, 0-1 1,123.25
1.8









36R-4, 0-1 1,131.34
2.0









36R-5, 0-1 1,132.63
3.5









37R-2, 0-1 1,137.77
2.9









37R-4, 0-1 1,140.51
2.2









38R-3, 0-1 1,148.59
17.6









38R-6, 0-1 1,152.82
6.4









39R-3, 0-1 1,158.23
14.2









39R-4, 0-1 1,159.71
18.5









40R-2, 0-1 1,166.33
13.1









40R-4, 0-2 1,169.36
54.2









41R-2, 0-1 1,175.90
20.7









41R-4, 0-1 1,178.97 39.4 47.3 1.2








42R-4, 0-1 1,188.16
37.5









42R-6, 0-1 1,191.20 88.1 79.3 0.9








43R-3, 0-1 1,196.55
28.5









43R-6, 0-1 1,201.00
6.9









44R-1, 0-1 1,203.20 58.6 211.1 3.6








44R-3, 0-1 1,206.20 63.4 63.4 1.0








45R-2, 0-1 1,214.33
44.7









45R-5, 0-1 1,218.92
10.1









46R-1, 146-147 1,223.86
83.3









46R-4, 0-1 1,226.99 91.3 82.2 0.9








47R-2, 0-1 1,233.53 115.9 139.1 1.2








47R-4, 0-1 1,236.57 110.4 165.6 1.5








48R-2, 0-1 1,244.78 92.5 148.0 1.6








48R-4, 0-1 1,246.32 110.2 143.3 1.3








49R-3, 0-1 1,254.40 48.5 58.2 1.2








49R-4, 0-1 1,255.90 67.7 284.3 4.2








50R-3, 0-1 1,264.00 86.2 189.7 2.2








50R-5, 0-1 1,267.00 61.7 277.8 4.5








51R-2, 0-1 1,272.20 82.6 90.9 1.1








51R-3, 0-1 1,273.70 86.8 147.5 1.7








52R-2, 0-1 1,281.90 53.5 139.1 2.6








52R-5, 0-1 1,286.40 82.5 214.5 2.6








53R-2, 120-121 1,292.70 46.6 176.9 3.8








53R-3, 131-132 1,294.31 74.6 201.4 2.7








54R-2, 0-1 1,301.10 58.6 234.2 4.0








54R-3, 0-1 1,302.60 66.4 311.9 4.7








55R-2, 0-1 1,310.70 50.4 705.4 14.0
7.9






56R-2, 0-1 1,320.30 86.1 232.5 2.7








57R-2, 0-1 1,330.00 59.3 171.9 2.9








58R-2, 0-1 1,339.60
1.4









59R-2, 0-1 1,345.60 61.8 271.7 4.4








59R-6, 0-1 1,351.62 99.6 199.2 2.0








60R-2, 0-1 1,355.20 41.6 91.5 2.2








60R-4, 0-1 1,358.10 48.7 282.5 5.8








61R-2, 0-1 1,364.70 52.6 57.9 1.1








61R-7, 52-53 1,372.62 92.8 222.8 2.4








62R-2, 0-1 1,374.40 98.6 256.4 2.6








62R-5, 0-1 1,378.90 66.8 86.8 1.3








63R-2, 0-1 1,384.00
37.3









63R-5, 0-1 1,388.50 59.8 281.0 4.7








64R-2, 0-1 1,393.70 65.8 289.4 4.4








64R-5, 0-1 1,398.20 79.8 311.1 3.9








65R-4, 0-1 1,406.30 61.3 233.1 3.8








65R-5, 0-1 1,407.80 54.3 347.6 6.4








66R-2, 0-1 1,412.80 50.3 386.9 7.7








66R-4, 0-1 1,415.80 48.0 177.4 3.7








67R-2, 0-1 1,422.40 68.6 219.5 3.2








67R-4, 0-1 1,425.40 27.4 79.5 2.9 1.1







68R-2, 0-1 1,432.00 57.0 410.4 7.2








68R-5, 0-1 1,436.50 44.2 145.8 3.3








69R-4, 0-1 1,444.30 42.9 210.0 4.9








69R-6, 0-1 1,447.30 32.9 42.7 1.3








70R-3, 0-1 1,452.50 38.4 80.6 2.1








70R-6, 0-1 1,457.00 40.9 81.8 2.0








71R-3, 0-1 1,462.20 70.0 252.1 3.6








71R-7, 0-1 1,467.91 40.7 122.2 3.0








72R-2, 0-1 1,470.40 31.5 554.0 17.6
9.2
7.2 3.1 3.7


72R-6, 0-1 1,476.23 42.8 248.1 5.8


2.0




73R-3, 0-1 1,481.50 46.6 489.4 10.5


3.4 1.6 1.8


73R-6, 0-1 1,486.00 42.5 1,326.6 31.2
12.3
10.4 4.2 6.3 1.5

74R-3, 0-1 1,491.10 53.9 474.0 8.8


2.2
1.3


74R-4, 0-1 1,492.60 50.4 655.7 13.0
4.4
3.3
2.0


75R-2, 0-1 1,499.20 46.1 515.9 11.2


2.9 1.4 1.6


75R-4, 0-1 1,502.20 46.0 919.4 20.0
6.7
4.3 2.0 2.6


76R-2, 0-1 1,508.80 34.8 434.9 12.5


3.3 1.5 2.1


76R-4, 0-1 1,511.80 26.0 46.8 1.8








77R-2, 0-1 1,518.40 38.6 416.5 10.8


3.0
1.6


77R4, 0-1 1,521.40 42.1 733.1 17.4


3.7 1.5 1.8


78R-3, 0-1 1,529.50 50.5 338.0 6.7


1.8




78R-5, 0-1 1,532.50 44.9 705.1 15.7


3.2 1.4 1.5


79R-2, 0-1 1,537.70 37.9 1,112.9 29.4
5.6
5.0 1.9 2.2


79R-3, 0-1 1,539.20 45.7 191.8 4.2








80R-2, 0-1 1,547.30 26.1 719.5 27.6
6.5
4.0 1.6 2.1


80R-4, 0-1 1,550.30 29.4 253.2 8.6








81R-2, 0-1 1,556.90 29.4 1,353.2 46.0
8.6 10.0 6.4 2.4
2.6

81R-3, 139-140 1,559.79 15.1 88.8 5.9


1.4




82R-1, 0-1 1,565.00 19.8 306.5 15.5

2.6 1.8




83R-4, 0-1 1,579.00 22.4 257.1 11.5

5.3 3.3

1.2

84R-3, 0-1 1,587.20 28.4 1,123.0 39.6
5.1 7.0 4.3 1.9
1.4

85R-3, 0-1 1,590.70 27.3 603.6 22.1

4.2 2.7




86R-3, 0-1 1,597.80 9.1 61.6 6.8

2.1 1.4




87R-2, 0-1 1,606.00 22.0 250.5 11.4

3.0 2.1




87R-5, 0-1 1,610.58 10.2 751.9 74.0
14.8 14.4 8.7 3.6
3.4

88R-8, 97-98 1,624.01 2.7 5,484.4 2,014.4
296.8 168.6 11.9 26.1 3.2 5.5

89R-2, 0-1 1,625.10 4.0 3,107.0 771.4
103.8 91.5 8.5 14.3 1.4 3.4

89R-5, 0-1 1,628.64 5.3 4,035.1 761.2
86.7 52.7 4.5 8.3
1.6

90R-3, 0-1 1,636.27 5.2 2,224.3 431.0
50.9 52.2 4.8 9.2
2.1

90R-6, 0-1 1,640.77 4.9 1,995.7 411.9
48.8 53.0 5.1 9.6
2.3

91R-2, 0-1 1,644.30 4.2 2,471.0 582.8
76.5 75.3 7.6 12.8 1.5 3.3

91R-5, 0-1 1,648.80 5.1 1,391.8 272.5
26.8 32.2 3.0 5.2
1.2

92R-3, 0-1 1,655.50 5.0 4,777.9 956.0
102.9 96.7 7.8 13.1 1.6 2.9

92R-5, 0-1 1,658.50 5.5 4,315.3 787.7
82.2 61.2 5.5 8.5
2.1

93R-2, 0-1 1,663.60 3.2 1,069.8 331.7
43.3 35.2 3.6 6.0
1.4

93R-4, 0-1 1,666.60 3.4 4,021.7 1,192.2
142.7 88.8 7.4 12.5 1.4 2.8

94R-4, 0-1 1,676.15 4.4 3,784.9 854.6
96.6 94.4 7.9 12.6 2.0 3.3
1.8
94R-6, 0-1 1,679.09 5.4 5,233.7 967.6
96.7 89.5 6.6 10.3 1.5 2.1

95R-2, 0-1 1,682.56 2.4 1,153.1 480.0
59.1 75.7 5.0 8.2
1.3

95R-3, 0-1 1,684.06 4.2 3,578.2 843.9
100.5 99.5 6.5 11.6 1.5 2.0

96R-2, 0-1 1,692.33 3.1 9,149.7 2,956.8
339.2 257.6 16.9 33.0 2.7 3.3

96R-5, 0-1 1,696.95 2.8 15,962.9 5,801.8
602.3 256.7 15.6 25.3 1.7 2.1

97R-2, 0-1 1,702.00 2.4 8,173.7 3,442.1
535.2 300.0 18.7 31.6
1.3

97R-3, 0-1 1,703.50 2.5 18,668.6 7,501.1
1,416.8 657.0 73.2 101.9 2.6 5.9
1.2
98R-3, 0-1 1,713.01 5.9 556.3 94.6
9.1 9.8
1.4