Mixing Zephyr Program
Dive 3002

Port Observer: Olson
Starboard Observer: Bhat
Pilot: Williams
Date: 9/22/95

Summary

Dive Goals: Conductivity, Temperature, and Fluid Samples of Main Field Sulfide Flange Pool Fluids. Retrieval of Temperature Probes from Puffer and Milli-Q.

Mesotech Survey East of South Main Field.

Dive Summary: We touched down about 9:20 AM at (5105, 6260). From 10:00 - 10:30, We sampled a flange pool on Hulk near maker J (5049, 6239). Fluid conductivity was measured at .47, and the ALVIN HT probe measured a high T of 329.7 degrees C. We took MS4 and GT2 (which may be heavily sedimented). From 10:53-11:30, we sampled a flange pool on Lobo near Marker V (4946, 6176). Fluid conductivity was measured at .53 (T=214.9). The ALVIN HT probe measured a high T of 335.1 (3 inches away from the conductivity probe). We took MS5 and GT6. From 12:20-12:40, we sampled a flange pool on Salut near Marker A5 (4850, 5854). Fluid conductivity was measured at 1.54 and 1.46 (T=160). The ALVIN HT probe measured a high T of 347.2 We took manifold samples. The Starboard OM was a possible non-fire (T1=340, T2=280), Starboard IM had T1=343, T2=283, and the Starboard Gas tight had T1=344, T2=283. We retrieved a temperature probe from Puffer (before going to Cantilever?). From 12:59 - 13:30, we sampled a flange pool on Cantilever near Marker AS (4875, 5980). Fluid conductivity was measured at 3.72 (T=377). The ALVIN HT probe measured a high T of 353. We took manifold samples. Port Manifold Gas tight had T1=348, T2=273. Port IM had T1=352, T2=287. Port OM had T1=356, T2=280. Port Gas tight had T1=356, T2=275. Also, handheld Gas tight #7 and handheld Gas tight #5 were taken. About 13:45, we retried a temperature probe from MilliQ. From 14:00 to 15:15, we conducted a Mesotech survey east of the south main field. We ran about 8 lines of approximately 300 meters in length, striking about 020, with altitude maintained at 30 m. We found 10 m turns were two tight and ended up running approximately every other line from Christian Parker’s intended survey. The lines can be seen in the dive track. On our ascent we popped the Blue (misfire), Red (altitude 28 m) and Yellow (altitude 80m) Niskin bottles in “smoky water” (4948, 5953). All in all the sampling went well, and the new conductivity probe seemed to work nicely.