Figure F12. Formation pressures (1 day running averages) in Hole 857D since the second CORK installation during ODP Leg 169. Seismotectonic events from various local and regional sources are indicated with downward pointing arrows. The transient in 2010 (upward arrow) was produced when a parallel current-generation instrument was hydraulically connected for high-resolution monitoring, optical communications system testing, and NEPTUNE-compatibility.
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