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doi:10.2204/iodp.proc.301.101.2005 ReferencesAlt, J.C., 1995. Subseafloor processes in mid-ocean ridge hydrothermal systems. In Humphris, S.E., Zierenberg, R., Mullineaux, L., and Thomson, R. (Eds.), Seafloor Hydrothermal Systems: Physical, Chemical, Biological and Geological Interactions within Hydrothermal Systems. Geophys. Monogr., 91:85–114. Alt, J.C., and Teagle, D.A.H., 1999. The uptake of carbon during alteration of ocean crust. Geochim. Cosmochim. Acta, 63:1527–1535. doi:10.1016/S0016-7037(99)00123-4 Alt, J.C., and Teagle, D.A.H., 2003. Hydrothermal alteration of upper oceanic crust formed at a fast-spreading ridge: mineral, chemical, and isotopic evidence from ODP Site 801. Chem. Geol., 201:191–211. doi:10.1016/S0009-2541(03)00201-8 Altman, S.J., Meigs, L.C., Jones, T.L., and McKenna, S.A., 2002. Controls of mass recovery rates in single-well injection-withdrawal tracer tests with a single-porosity, heterogeneous conceptualization. Water Resour. 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Permeability of upper oceanic basement on the eastern flank of the Juan de Fuca Ridge determined with drill-string packer experiments. J. Geophys. Res., 105:897–912. doi:10.1029/1999JB900250 Becker, M.W., and Shapiro, A.M., 2000. Tracer transport in fractured crystalline rock: evidence of nondiffusive breakthrough tailing. Water Resour. Res., 36:1677–1686. doi:10.1029/2000WR900080 Becker, N.C., Wheat, C.G., Mottl, M.J., Karsten, J.L., and Davis, E.E., 2000. A geological and geophysical investigation of Baby Bare, locus of a ridge flank hydrothermal system in the Cascadia Basin. J. Geophys. Res., 105:23557–23568. doi:10.1029/2000JB900204 Bethke, C.M., and Johnson, T.M., 2002. Paradox of groundwater age. Geology, 30:107–110. doi:10.1130/0091-7613(2002)030<0107:POGA>2.0.CO;2 Buatier, M.D., Monnin, C., Früh-Green, G.L., and Karpoff, A.-M., 2001. Fluid-sediment interactions related to hydrothermal circulation in the eastern flank of the Juan de Fuca Ridge. Chem. 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