ALVIN Dive Information

Dive Number:4155Date:09/15/05
Chief Scientist:BeckerOperations Area:ODP Hole 857D
Pilot:D. FosterObserver 1:Mark Spear
Observer 2:Keir Becker
Launch Time:15:19Time Submerged:7:58
Time on Surface:23:17Bottom Time:5:25
Depth:2424 metersPurpose:Chemistry
Still Images: Moving Images:4 DVcam tape(s)
Observed:Anemones, Bacterial mats, Clams, Hi temp vents, Inactive vent deposits, Non-vent fish, Sea cucumbers, Sea stars, Snails/Limpets, Soft sediment, Sponges, Tube worms, Vent fishSampled:Hi temp vents
FrameGrabber Link:
Remarks:Downloaded 2+ yrs pressure data from ODP cage 857D. Observed 2 ~260deg. C vents in ~800m. NNE of 857D. Sampled fluids & bubble from the first vent