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Table T17. Results from degassing experiments at Site U1329.

Core Total volume
of gas released
(mL)
Total volume
of methane
released (mL)
Average concentration
of released gas components (%)*
Total volume of
water released
(mL)
Salinity
of released
water
Temperature
during degassing
(°C)
Air pressure
during degassing
(MPa)
C1 C2 CO2 N2 C1/C2
311-U1329C-
7P 1,494 718 69.3 0.0034 BD 19.3 15,765 302 7.7 ± 0.6 0.1021
23P 4,190 3,421 87.6 0.1927 5.9 4.4 453 0 7.2 ± 0.5 0.1009
311-U1329E-
7P 1,620 1,047 78.3 0.0032 BD 17.0 15,850 204 7.3 ± 0.4 0.1007
10P 1,885 1,268 91.8 BD 8.0 234 6.8 ± 0.3 0.1005

Notes: * = excludes initially released gas increments that are diluted by dead volume of manifold system. BD = below detection. † = obtained for selected samples from each core using methods described in "Organic geochemistry" in the "Methods" chapters (Table T6) except for Core 311-U1329C-2P (continuous analysis during degassing experiment).

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