ALVIN Dive Information

Dive Number:2812Date:08/08/94
Chief Scientist:KADKO/TIVEY/BECKEROperations Area:JUAN DE FUCA RIDGE - Cleft Segment
Pilot:R. WilliamsObserver 1:Virginia Smith
Observer 2:David Kadko
Launch Time:0812Time Submerged:7:33
Time on Surface:1545Bottom Time:
Depth:2252 metersPurpose:GEOLOGY
Sponsor:NSFData:1 CD-ROM Incl. Dives 2800-2950, data transferred from 3.5" diskettes
Still Images:2 Reel(s) 35mm color film Incl. Dives 2808-12Moving Images:6 Hi8 video tape(s)
Observed:Anemones, Bacterial mats, Hi temp vents, Inactive vent deposits, Lo temp vents, Midwater organisms, Mussels, Non-vent fish, Other worms, Sea cucumbers, Sea stars, Snails/Limpets, Tube worms, Urchins, Vent fishSampled:Hi temp vents, Inactive vent deposits, Lo temp vents, Other worms, Tube worms, Actnav(used tempprota & Hobo)
FrameGrabber Link:
Remarks:Monolithient sites on edge of fissure with a scarp on the west side. The sulfide mound under monolith rises out of basalt, the vent rises out of this mound. Monolith vent is small 10-m - 12m long and 5m wide.