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Altman, S.J., Meigs, L.C., Dones, 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. Res., 38:1125. doi:10.1029/2000WR000182

Bach, W., Humphris, S.E., and Fisher, A.T., 2004. Fluid flow and fluid-rock interaction within ocean crust: reconciling geochemical, geological, and geophysical observations. In Wilcock, W.S.D., Delong, E.F., Kelley, D.S., Baross, J.A., and Cary, C.S. (Eds.), The Subseafloor Biosphere at Mid-Ocean Ridges. Geophys. Monogr., 144:99–118.

Bartetzko, A., 2005. Effect of hydrothermal ridge flank alteration on the in situ physical properties of uppermost oceanic crust. J. Geophys. Res., [Solid Earth], 110(B6):B06203–B06211. doi:10.1029/2004JB003228

Becker, K., and Fisher, A.T., 2000. Permeability of upper oceanic basement on the eastern flank of the Juan de Fuca Ridge determined with drill-string packer experiments. J. Geophys. Res., [Solid Earth], 105(B1):897–912. doi:10.1029/1999JB900250

Becker, K., and Fisher, A.T., 2008. Borehole packer tests at multiple depths resolve distinct hydrologic intervals in 3.5-Ma upper oceanic crust on the eastern flank of Juan de Fuca Ridge. J. Geophys. Res., [Solid Earth], 113(B7):B07105. doi:10.1029/2007JB005446

Becker, M.W., Metge, D.W., Collins, S.A., Shapiro, A.M., and Harvey, R.W., 2003. Bacterial transport experiments in fractured crystalline bedrock. Ground Water, 41(5):682–689. doi:10.1111/j.1745-6584.2003.tb02406.x

Birk, S., Geyer, T., Liedl, R., and Sauter, M., 2005. Process-based interpretation of tracer tests in carbonate aquifers. Ground Water, 43(3):381–388. doi:10.1111/j.1745-6584.2005.0033.x

Brouyère, S., Carabin, G., and Dassargues, A., 2005. Influence of injection conditions on field tracer experiments. Ground Water, 43(3):389–400. doi:10.1111/j.1745-6584.2005.0041.x

Clark, J.F., Hudson, G.B., and Avisar, D., 2005. Gas transport below artificial recharge ponds: insights from dissolved noble gases and a dual gas (SF6 and 3He) tracer experiment. Environ. Sci. Technol., 39(11):3939–3945. doi:10.1021/es049053x

Clark, J.F., Hudson, G.B., Davisson, M.L., Woodside, G., and Herndon, R., 2004. Geochemical imaging of flow near an artificial recharge facility, Orange County, California. Ground Water, 42(2):167–174. doi:10.1111/j.1745-6584.2004.tb02665.x

Dann, R.L., Close, M.E., Pang, L., Flintoft, M.J., and Hector, R.P., 2008. Complementary use of tracer and pumping tests to characterize a heterogeneous channelized aquifer system in New Zealand. Hydrogeol. J., 16(6):1177–1191. doi:10.1007/s10040-008-0291-4

Day-Lewis, F.D., Lane, J.W., and Gorelick, S.M., 2006. Combined interpretation of radar, hydraulic, and tracer data from a fractured-rock aquifer near Mirror Lake, New Hampshire, USA. Hydrogeol. J., 14(1–2):1–14. doi:10.1007/s10040-004-0372-y

Elderfield, H., Wheat, C.G., Mottl, M.J., Monnin, C., and Spiro, B., 1999. Fluid and geochemical transport through oceanic crust: a transect across the eastern flank of the Juan de Fuca Ridge. Earth Planet. Sci. Lett., 172(1–2):151–165. doi:10.1016/S0012-821X(99)00191-0

Fisher, A.T., Davis, E.E., and Becker, K., 2008. Borehole-to-borehole hydrologic response across 2.4 km in the upper oceanic crust: implications for crustal-scale properties. J. Geophys. Res., [Solid Earth], 113(B7):B07106. doi:10.1029/2007JB005447

Fisher, A.T., Davis, E.E., Hutnak, M., Spiess, V., Zühlsdorff, L., Cherkaoui, A., Christiansen, L., Edwards, K., Macdonald, R., Villinger, H., Mottl, M.J., Wheat, C.G., and Becker, K., 2003. Hydrothermal recharge and discharge across 50 km guided by seamounts on a young ridge flank. Nature (London, U. K.), 421(6923):618–621. doi:10.1038/nature01352

Fisher, A.T., Wheat, C.G., Becker, K., Davis, E.E., Jannasch, H., Schroeder, D., Dixon, R., Pettigrew, T.L., Meldrum, R., McDonald, R., Nielsen, M., Fisk, M., Cowen, J., Bach, W., and Edwards, K., 2005. Scientific and technical design and deployment of long-term subseafloor observatories for hydrogeologic and related experiments, IODP Expedition 301, eastern flank of Juan de Fuca Ridge. In Fisher, A.T., Urabe, T., Klaus, A., and the Expedition 301 Scientists, Proc. IODP, 301: College Station, TX (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.301.103.2005

Gillis, K.M., Muehlenbachs, K., Stewart, M., Gleeson, T., and Karson, J., 2001. Fluid flow patterns in fast spreading East Pacific Rise crust exposed at Hess Deep. J. Geophys. Res., [Solid Earth], 106(B11):26311–26329. doi:10.1029/2000JB000038

Gillis, K.M., and Robinson, P.T., 1990. Patterns and processes of alteration in the lavas and dykes of the Troodos ophiolite, Cyprus. J. Geophys. Res., [Solid Earth], 95(B13):21523–21548. doi:10.1029/JB095iB13p21523

Göppert, N., and Goldscheider, N., 2008. Solute and colloid transport in karst conduits under low- and high-flow conditions. Ground Water, 46(1):61–68. doi:10.1111/j.1745-6584.2007.00373.x

Haggerty, R., Fleming, S.W., Meigs, L.C., and McKenna, S.A., 2001. Tracer tests in a fractured dolomite: 2. Analysis of mass transfer in single-well injection-withdrawal tests. Water Resour. Res., 37(5):1129–1142. doi:10.1029/2000WR900334

Hall, S.H., Luttrell, S.P., and Cronin, W.E., 1991. A method for estimating effective porosity and ground-water velocity. Ground Water, 29(2):171–174. doi:10.1111/j.1745-6584.1991.tb00506.x

Harvey, R.W., George, L.H., Smith, R.L., and LeBlanc, D.R., 1989. Transport of microspheres and indigenous bacteria through a sandy aquifer: results of natural- and forced-gradient tracer experiments. Environ. Sci. Technol., 23(1):51–56. doi:10.1021/es00178a005

House, C.H., Cragg, B.A., Teske, A., and the Leg 201 Scientific Party, 2003. Drilling contamination tests during ODP Leg 201 using chemical and particulate tracers. In D’Hondt, S.L., Jørgensen, B.B., Miller, D.J., et al., Proc. ODP, Init. Repts., 201: College Station, TX (Ocean Drilling Program), 1–19. doi:10.2973/

Hulme, S.M., Wheat, C.G., Coggon, R.M., and McManus, J., 2008. Data report: trace element, Sr isotope, and Ge/Si composition of fluids and sediments in ridge-flank low-temperature hydrothermal environments. In Fisher, A.T., Urabe, T., Klaus, A., and the Expedition 301 Scientists, Proc. IODP, 301: College Station, TX (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.301.202.2008

Hutnak, M., Fisher, A.T., Zühlsdorff, L., Spiess, V., Stauffer, P.H., and Gable, C.W., 2006. Hydrothermal recharge and discharge guided by basement outcrops on 0.7–3.6 Ma seafloor east of the Juan de Fuca Ridge: observations and numerical models. Geochem., Geophys., Geosyst., 7(7):Q07O02. doi:10.1029/2006GC001242

Karson, J.A., 1998. Internal structure of oceanic lithosphere: a perspective from tectonic windows. In Buck, W.R., Delaney, P.T., Karson, J.A., and Lagabrielle, Y. (Eds.), Faulting and Magmatism at Mid-Ocean Ridges. Washington, DC (Am. Geophys. Union), 177–218.

Khaleel, R., 1989. Scale dependence of continuum models for fractured basalts. Water Resour. Res., 25(8):1847–1855. doi:10.1029/WR025i008p01847

Leap, D.I., and Kaplan, P.G., 1988. A single-well tracing method for estimating regional advective velocity in a confined aquifer: theory and preliminary laboratory verification. Water Resour. Res., 24(7):993–998. doi:10.1029/WR024i007p00993

Lilley, M.D., Butterfield, D.A., Olson, E.J., Lupton, J.E., Macko, S.A., and McDuff, R.E., 1993. Anomalous CH4 and NH4+ concentrations at an unsedimented mid-ocean-ridge hydrothermal system. Nature (London, U. K.), 364(6432):45–47. doi:10.1038/364045a0

Mottl, M.J., and Gieskes, J.M., 1990. Chemistry of waters sampled from oceanic basement boreholes, 1979–1988. J. Geophys. Res., 95:9327–9342.

Mottl, M.J., and Wheat, C.G., 1994. Hydrothermal circulation through mid-ocean ridge flanks: fluxes of heat and magnesium. Geochim. Cosmochim. Acta, 58(10):2225–2237. doi:10.1016/0016-7037(94)90007-8

Neuman, S.P., 2005. Trends, prospects and challenges in quantifying flow and transport through fractured rocks. Hydrogeol. J., 13(1):124–147. doi:10.1007/s10040-004-0397-2

Niemann, W.L., and Rovey, C.W., II, 2009. A systematic field-based testing program of hydraulic conductivity and dispersivity over a range in scale. Hydrogeol. J., 17(2):307–320. doi:10.1007/s10040-008-0365-3

Novakowski, K.S., Lapcevic, P.A., Voralek, J., and Bickerton, G., 1995. Preliminary interpretation of tracer experiments conducted in a discrete rock fracture under conditions of natural flow. Geophys. Res. Lett., 22(11):1417–1420. doi:10.1029/95GL00569

Novakowski, K.S., Lapcevic, P.A., Voralek, J.W., and Sudicky, E.A., 1998. A note on a method for measuring the transport properties of a formation using a single well. Water Resour. Res., 34(5):1351–1356. doi:10.1029/98WR00292

Sherr, E.B., Sherr, B.F., and Cowles, T.J., 2001. Mesoscale variability in bacterial activity in the northeast Pacific Ocean off Oregon, USA. Aquat. Microb. Ecol., 25:21–30. doi:10.3354/ame025021

Solomon, E.A., Kastner, M., Wheat, C.G., Jannasch, H., Robertson, G., Davis, E.E., and Morris, J.D., 2009. Long-term hydrogeochemical records in the oceanic basement and forearc prism at the Costa Rica subduction zone. Earth Planet. Sci. Lett., 282(1–4):240–251. doi:10.1016/j.epsl.2009.03.022

Walker, B.D., McCarthy, M.D., Fisher, A.T., and Guilderson, T.P., 2007. Dissolved inorganic carbon isotopic composition of low-temperature axial and ridge-flank hydrothermal fluids of the Juan de Fuca Ridge. Mar. Chem., 108(1–2):123–136. doi:10.1016/j.marchem.2007.11.002

Watson, A.J., Ledwell, J.R., Webb, D.J., and Wunsch, C., 1988. Purposefully released tracers (and discussion). Philos. Trans. R. Soc., A, 325(1583):189–200. doi:10.1098/rsta.1988.0051

Wheat, C.G., Elderfield, H., Mottl, M.J., and Monnin, C., 2000. Chemical composition of basement fluids within an oceanic ridge flank: implications for along-strike and across-strike hydrothermal circulation. J. Geophys. Res., [Solid Earth], 105(B6):13437–13447. doi:10.1029/2000JB900070

Wheat, C.G., Jannasch, H.W., Fisher, A.T., Becker, K., Sharkey, J., and Hulme, S., 2010. Subseafloor seawater-basalt-microbe reactions: continuous sampling of borehole fluids in a ridge flank environment. Geochem., Geophys., Geosyst., 11(7):Q07011. doi:10.1029/2010GC003057

Wheat, C.G., Jannasch, H.W., Kastner, M., Plant, J.N., and DeCarlo, E.H., 2003. Seawater transport and reaction in upper oceanic basaltic basement: chemical data from continuous monitoring of sealed boreholes in a ridge flank environment. Earth Planet. Sci. Lett., 216(4):549–564. doi:10.1016/S0012-821X(03)00549-1

Wheat, C.G., and McDuff, R.E., 1995. Mapping the fluid flow of the Mariana Mounds ridge flank hydrothermal system: pore water chemical tracers. J. Geophys. Res., [Solid Earth], 100(B5):8115–8131. doi:10.1029/95JB00047

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