ALVIN Dive Information

Dive Number:2430Date:08/20/91
Chief Scientist:EMBLEYOperations Area:JUAN DE FUCA RIDGE
Pilot:R. GrieveObserver 1:Roger Hughes
Observer 2:William Chadwick
Launch Time:0824Time Submerged:8:37
Time on Surface:1701Bottom Time:
Depth:2430 metersPurpose:GEOLOGY
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 2430-31Moving Images:6 8mm video tape(s)
Observed:Anemones, Basalt lava, Crabs, Inactive vent deposits, Midwater organisms, Non-vent fish, Sea stars, Soft sediment, SpongesSampled:ALVIN navigation, Basalt lava, Inactive vent deposits, Soft sediment, Temperature records
FrameGrabber Link:
Remarks:Mapped contact of northern end of new lavas; sampled new and old lavas and hydrothermal sediments associated with the eruption; no active hydrothermal vents seen.