ALVIN Dive Information

Dive Number:2431Date:08/21/91
Chief Scientist:EMBLEYOperations Area:JUAN DE FUCA RIDGE
Pilot:C. Van DoverObserver 1:Ian Jonasson
Observer 2:James Gendron
Launch Time:0805Time Submerged:7:27
Time on Surface:1532Bottom Time:
Depth:2278 metersPurpose:GEOCHEMISTRY
Sponsor:NOAAData:1 CD-ROM Incl. Dives 2196-2197, 2331-2799, data transferred from 3.5" diskette(s)
Still Images:2 Reel(s) 35mm color film Incl. Dives 2430-32Moving Images:6 8mm video tape(s)
Observed:Anemones, Bacterial mats, Basalt lava, Inactive vent deposits, Lo temp vents, Midwater organisms, Non-vent fish, Sea stars, Snails/Limpets, Soft sediment, Tube worms, Vent fishSampled:ALVIN navigation, Basalt lava, Inactive vent deposits, Lo temp vents, Soft sediment, Temperature records, Tube worms
FrameGrabber Link:
Remarks:Broad scale low-temp venting in main fissure; broad expanse of ferigenous(?) sediment; west off axis seems to local leaking through sheet flow. (note: spelling unclear)