TABLE 1.

Diffusion coefficients used in this study^a

Salinity (‰, wt/vol)	O2Dw (10−5 cm2 s−1)	O2 Φ × Dc (10−5 cm2 s−1)	CH4Dc (10−5 cm2 s−1)
264	1.46	0.95	0.81
228	1.56	1.01	0.86
215	1.60	1.04	0.88
205	1.63	1.06	0.90
198	1.65	1.07	0.91
164	1.76	1.14	0.97
128	1.89	1.23	1.04

^aData are available at http:/www.unisense.com/support/pdf/gas_tables.pdf. D_w, diffusion coefficient in free solution; D_c, diffusion constant in the crust.