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Table T7. Concentrations of hydrocarbons observed in safety gas vials, Site C0015.

Core, section,
interval (cm) 		Depth
(mbsf) 		CH4 in
headspace
(ppm) 		C2H6 in
headspace
(ppm) 		C3H8 in
headspace
(ppm) 		Butane, ethylene,
and/or propylene
(Y or N) 		Sediment
mass
(g) 		CH4 in
pore water
(µM) 		C2H6 in
pore water
(µM)
331-C0015B-
1H-1, 134 1.34 2.1 BD BD N 1.821 1.6 BD
331-C0015C-
1H-1, 0 6.50 1.6 BD BD Y 8.423 0.4 BD

BD = below detection.

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