Table T9. Composition of headspace gases, Hole 1255A.
Core, section,
interval (cm)
Depth
(mbsf)
CH4
(ppmv)
C2H6
(ppmv)
C2H4
(ppmv)
C3H8
(ppmv)
CH4/
C2H6
i-C4H10
(ppmv)
n-C4H10
(ppmv)
i-C5H12
(ppmv)
n-C5H12
(ppmv)
O2
(ppmv)
N2
(ppmv)
CO2
(ppmv)
205-1255A-












2R-1, 119-124 133.89 6,259 5 0 1 1163 0 0 0 0 134,744 667,696 15,483
2R-3, 0-5 134.42 3,231 4 0 1 923 0 0 0 0 144,156 759,393 5,246
3R-1, 145-150 143.85 176 0 1 0 ND 0 0 0 0 152,929 722,062 11,794
3R-2, 82-87 144.72 6 0 0 0 ND 0 0 0 0 106,983 770,170 6,195
3R-3, 0-5 145.23 4 0 0 0 ND 0 0 0 0 117,785 771,614 8,274
4R-1, 0-5 152.00 7 0 1 0 ND 0 0 0 0 144,635 719,433 7,332

Notes: ppmv = parts per million by volume. ND = not determined.