Table T6. Composition of gas from analyses of decomposed samples of gas hydrate, Hole 1246B.
Core, section,
interval (cm)
Depth
(mbsf)
C1
(ppmv)
C2
(ppmv)
C3
(ppmv)
i-C4
(ppmv)
n-C4
(ppmv)
H2S
(ppmv)
CO2
(ppmv)
O2
(ppmv)
N2
(ppmv)
C1/C2
204-1246B-










12H-4, 87 104.93 919,966 17.1 8.3


4,505 11,324 36,719 53,957

Note: C1 = methane, C2 = ethane, C3 = propane, i-C4 = iso-butane, n-C4 = normal butane, H2S = hydrogen sulfide, CO2 = carbon dioxide, O2 = oxygen, N2 = nitrogen.