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Dive Log


Dive Number: 4068
December 8, 2004

Pilot: Bruce Strickrott
Port Observer: Joe Grzymski
Starboard Observer: Kevin Portune


1525: Reach bottom near BioVent and LVWS …should be some great 3 chip of a critter (larvation?)

1529: Drop target near a vent fish hole, previously unknown

1538: Arrive at BioVent

1538-1555: Attempt to position LVWS near diffuse flow. Tube is kinked.

1559: Running pump -- 1 minute purge then on

1609: Pump is on, temperatures are between 20-40

1610-1630: Set up for sipping [Biovent  (Site X, Y: 4363, 79209) (Depth: 2505 meters) (Altitude: 3) (Heading: +319)]

1633: Temp. taken for sipper #1 (19-22 °C)

1634: Sipper pump on for 1 minute

1635: 1st sipper is fired (successful)

1639: Sipper pump on 1 min.  Temperatures taken (8-15 °C)

1641: 2nd sipper is fired successfully (*1st syringe was drawn down a bit indicating a faulty check valve in #1)

1642: Sipper pump on 1 min.  Temperatures (12-33 °C) 

1643: 3rd sipper is fired  (*1st syringe was not drawn down when fired)

1645: Pump on 1 min.  Temperatures (18-24 °C).

1646: 4th sipper is fired (successful)

1647:BEAUTIFUL 3chip of worms…please extract for best of…

1658: Begin worm wranglin’ chamber #3

1707-1711: Alvinella collected w/slurp gun and placed in chamber #3

1712: Chamber 3 flooded and confirmed

1713: Begin worm wrangling on chamber 2

1713-1724: Alvinella collected and placed in chamber #2

1725: chamber #2 flooded and confirmed

1730-1738: Alvinella collected and placed in chamber #3 (*worms had been out of tubes 20+ minutes)

1738: Cchamber #3 flooded and confirmed

1749: LVWS released manually (*Alvin was stuck with LVWS so ascended ~20 meters before able to release it)

1758: Sipper pump on.  Temperatures (22-32 °C)

1759: 5th sipper fired (successful)

1800: Sipper pump on.  Temperatures (28-37 °C)

1800: 6th sipper fired (successful) (syringe #5 was drawn down indicating faulty check valve)

1801: Sipper pump on.  Temperatures (19-20.3 °C)

1802: 7th sipper fired (*5th syringe was not drawn down.  6th syringe was drawn down a bit indicating faulty check valve)

1803: Pump on.  Temperatures (21.6-130 °C, very hot).  *Saw an Alvinella come out of this hole.

1803: 8th sipper fired (successful.  Syringe #6 was not drawn down).

1805: Pump on.  Temperatures (25-28.4 °C)

1805: 9th sipper fired (successful)

1806: Pump on.  Temperatures (16-34.3 °C)  (Alvinella worm seen in tube)

1807: 10th sipper fired (successful)

1808: Pump on.  Temperatures (30-43.4 °C)

1808: 11th sipper fired (successful)

1808: Finished sippin’

1810: GREAT 3chip of SITE…please extract

1815: Driving on down to TICA

1850: Phone Call to Deep in progress

1858: HI T probe used over frying pan TEMPS: 270-284

1903: Frying pan recovered scar TEMP: 330

1903: 3chip of area….extract

1936: Collect rock and Riftia in area of T=6.74

1940: Heading to P Vent

2000: Sulfide from P vent recovered temp=160-220

2006: UQC problem

2011: No power left, drop weights

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