Figure F11. Depth vs. time predicted for drilling and wireline logging operations for Expedition 309/312. Black line = depth of Hole 1256D before operations during Expedition 309. Horizontal lines = range of depths at which axial low-velocity zones, now frozen as gabbros, should be present, assuming 300 m of off-axis lavas (see Table T2). RCB = rotary core barrel.
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