Figure F10. Graphic illustration of tracer injection and transport experiment planned for Expedition 327. Borehole locations and designs are schematic and not to scale. The old CORK installed in Hole 1027C could not be replaced during Expedition 327, as originally planned, but this remains a viable site for pressure monitoring of cross-hole response, and it may be possible to retrofit the CORK for fluid sampling as well. All of the CORKs currently sampling borehole fluids are oriented along a trend parallel to structural strike in this area, the direction inferred to be favored for fluid and advective (heat, solute, and particle) transport in basement. Samples collected from these CORKs in summer 2011 and 2012 will allow assessment of transport rates and hydrologic properties within this ridge-flank hydrothermal system.
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