Figure F9. Photographs of fluid sampling from original-style CORK. A male Aeroquip connector protrudes from the steel cut-out. A ball valve is manipulated with the handle below the connector. The positioning of the connector near the steel bulkhead makes it difficult for submersibles to attach the female Aeroquip connector (2009; Hole 1200C) (see HANDLE in CORK in “Supplementary material”). Tubing was attached to the Aeroquip fitting and to a sample manifold. Because this formation is permeable and overpressured, borehole fluids vented through the manifold when the valve was opened. The white “smoke” is brucite that forms when this high-pH fluid mixes with seawater rich in magnesium.
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