4.2 NeMO '00 Dive Dates, Locations, Bottom Times, Summaries and Nav Info
Dive | Area | on btm | off btm | Dive Summary | Nav information |
R540 | South Cleft | No real bottom time | no nav | ||
R541 | South Cleft | JD183 (7/1) 1245 | JD184 (7/2) 0150 | Deployed Extensometers 2-7 (Clft E2-E7) at Benchmarks 2-7. Pressure measurement at Bmrk-3. No samples. | 1245-1253 nav gap |
R542 | South Cleft | JD184 (7/2) 1042 | JD185 (7/3) 1423 | Deployed Extensometers 8-12 (Clft E8-E12). Pressure measurements at Bmrks 1-12. Infared link with all extensometers, Clft E2 - E12. (Clft E1 was not deployed). Vent 1 Chimney 284 -Recovered 2 Hobos. Vent 1 Chimney 342 - Deployed 1 Hobo. Samples: 2 gtb, 2 twg, 1 sulfide. | Ship nav only (ps8000 troubles) |
R543 | 98 Lava Flow | JD186 (7/4) 0506 | JD186 (7/4) 1455 | Mkr 33 - Deployed 3 MTR's, 2 bactraps, 4 larval tubes (positioned 1 and 2). Recovered 3 osmos 2 bactraps, '99 Time Lapse Camera. Samples: 4 ss, 1 twg, 1gtb. Cloud (N4 and N6/21) - Deployed 2 bactraps, 3 MTR's, and Mkr-21. Recovered VEMCO and MTR. Samples: 2 ss, 1 gtb. Nascent- Deployed Mkr-M, 1 MTR. Recovered 1 MTR. Sample: 1 twg. Mkr-N41 - Deployed 1 MTR. Recovered 1 MTR. Sample: 1 twg. | |
R544 | ASHES and Mkr-33 | JD187 (7/5) 0705 | JD187 (7/5) 1732 | Hell (porkchop 1 & 2)-Samples: 5 ss, 1 rk, 1 sulfide flange. Sulfide worm observations and spider temp probe measurements. Mushroom-Recovered 3 bactraps. Samples: 3 ss, 2 gtb. Sulfide worm observations and spider temp probe measurements. Mkr-33-Position larval tubes 3 and 4. Elevator recovery near Mkr-33 (deployed on R543). | Nav starts at 0712.
0705-1422 ASHES (part1). 1422-1647 transit ASHES to Mkr-33. 1647 - 1732 Mkr-33 (part2). |
R545 | ASHES | JD188 (7/6) 0610 | JD188 (7/6) 1435 | Gollum - Deployed MTR, bactrp. Repositioned bactrp. Recovered bactrp. Sample: 1 ss. Hillock/Phoenix - Searched for bactrps but couldn't find them. Samples: 2 ss. Crack - Deployed, positioned larval tubes 5-8. Recovered VEMCO. Observed Johnson flow meter platform. ROPOS - Deployed MTR, bactrp. Recovered 2 bactrps. Hel l- Samples: 1 ss, 1 sulfide. Caldera wall - Sample: 1 ss (FeO). NW of Inferno-Deployed MTR. Mushroom - Sample: 1 gtb. Virgin | 0659 - 0713 transit. 1144 - 1217 nav gap. 1237 - 1304 transit Wall to Inferno. |
R546 | S Pillow Flow at 45 52'N | JD188 (7/6) 2019 | JD189 (7/7) 1417 | Deployed Bmrk-66 at fissure edge. Bmrk-66 pressure measurement. Samples: 2 ss. Imagenex (Lines 9-18) - Samples: Plankton net tow, McLane pump. | 188/2020-2040 nav gap.
189/1253-1340 transit Imagenex to Bmrk-66. |
R547 | 98 Lava Flow | JD190 (7/8) 0541 | JD191 (7/9) 0009 | Magnesia - (it's dead this year) Deployed Mkr-67. New Vent found/named BlueNose. Old Worms - Deployed MTR. Samples: 2 hfs. Mkr-N3 - Deployed 2 MTRs. Samples: 3 hfs. Mkr-N41 - Samples: 2 hfs, 1 ss. Nascent - Samples: 2hfs, 1 ss. Mkr-33 - Samples: 1 ss, 8 hfs. Snail - Deployed 2 MTRs. Samples: 1 hfs, 2 ss. Cloud - Samples: 5 hfs, 1 gtb, 2 ss, McLane pump. Castle - Deployed MTR. Samples: 1 hfs, 1 gtb, 1 ss, 1 sulfide. | Nav sporadic all dive. 0936-1045 Loss of coms. 1430-1500 poor nav. 2145-2239 transit Cloud to Castle. |
R548 | Caldera center and nSRZ | JD191 (7/9) 0836 | JD192 (7/10) 0255 | BPR (near center of caldera) - Deployed Bmrk-66. Pressure measurement. Magnesia - Deployed Bmrk-1 and performed pressure measurement. Sample: 1 ss. Moved osmosampler from Magnesia to Mkr-N41. Mkr-N41 -Deployed MTR. Connected NeMONet'99 camera to release mooring. Mkr-33 - Deployed Bmrk-5 and performed pressure measurement. Transit to BagCity - close call with water column mooring in transit. BagCity - Deployed Bmrk-4 and performed pressure measurement. Deployed 2 MTRs. Samples: 3 ss, 1 twg. Recover 1 MTR. Found/named FeCity Vent. Sample: 1 ss. Joystick - Samples: 2 rk, 1 twg, 2 ss. McLane pump Bag City to Joystick. | 0957-1154 transit BPR to Magnesia. 1342-1358 transit Magnesia to mooring. 1641-1723 transit mooring to Mkr-33. 1828-2010 transit Mkr-33 to BagCity. |
R549 | 98 Lava Flow | JD192 (7/10) 0748 | JD192((7/10) 1630 | Mkr-33 - Deployed 2 bactrps. Recovered 2 bactrps. Cloud - Deployed 2 bactrps, Recovered 2 bactrps, video traverse. Samples: 1 fish, 1 twg, 4 ss, 1 McLane. Snail -Samples 1 twg, 1 ss. Mkr-108 - Samples: 2 ss, 1 rk. Recovered NeMO Net'99 camera from Nascent after dive. | 1428-1516 transit on bottom from Snail to Mkr-108. (great geology) |
R550 | BagCity Area | JD193 (7/11) 0241 | JD193 (7/11) 1523 | Imagenex survey BagCity area and north to join with southern portion of previous coverage (Lines BC8-BC16). Sample: McLane pump BagCity area. Saw huge pinkish mystery jelly, later determined to be Deepstaria enigmata. | 1425 transit to Mkr-33 aborted due to HFS problems. |
R551 | 98 Lava Flow | JD193 (7/11) 2015 | JD194 (7/12) 1556 | Mkr-33 - Samples: 7 hfs. Snail - Sample: 1 hfs. Cloud - Samples: 3 hfs, 1 gtb, 1 ss. Mkr-113 - Deployed MTR. Samples: 3 ss, 1 hfs, 1 gtb. Joystick - Samples: 1hfs, 1 ss. FeCity - Samples: 2 hfs, 1 ss. Beautiful octopus on pillar when leaving FeCity. Bag City - Samples: 6 hfs, McLane. Coquille - Deployed 2 MTRs, Samples: 3 hfs, 1 rk. Imagenex (Lines BC17-BC19). | 193/2317-194/0113 transit Cloud to Mkr-113. 0411-0449 transit Mkr-113 to Joystick. 0929-1016 Nav gap. |
R552 | 98 Lava Flow | JD194 (7/12) 2358 | JD195 (7/13) 2327 | Mkr-113 - Sample: 1 twg. Imagenex (Lines W8 - W15) northwest of Mkr-113. Coquille - Sample: 1 ss. GeoTransect Coquille and lava highway (A&B). BagCity - Deploy/position NeMO Net'00 camera and temp probes. Reposition MTR. Imagenex (Lines BC20-BC23) finished south of BagCity. Samples during survey: McLane, Plankton net tow. GeoTraverse © area), looking for contacts. | 0552-0614 transit Imagenex to Coquille area. 0945-1013 transit B to BagCity area. 1230-1412 transit BagCity to Imagenex. 1959-2327 Nav problems: 1959-2018 nav gap. 2109-2150 nav gap. 1 nav fix after 2249. 2019-2108 transit to C. |
R553 | ASHES | JD196 (7/14) 1408 | JD197 (7/15) 0014 | near Crack - Deployed Johnson flow/temp meter. Marshmallow - Samples: 5 hfs. Gollum -Samples: 7 hfs, McLane pump. Virgin - Samples: 4 hfs, 1 gtb. Mushroom - Sample: 1 hfs. Inferno - Samples: 4 hfs, 1 gtbs. Hell - Samples 3 hfs, 1 ss. Sulfide worm observations. | |
R554 | S Pillow Flow at 45 52'N | JD197 (7/15) 0612 | JD197 (7/15) 2130 | Imagenex (Lines 1-8) survey of south pillow flow. GeoTraverse points A, B, C, D (and near F, G). Followed large fissure and several smaller fissures to establish contacts. | 1731-1746 transit Imagenex to A. |
R555 | NRZ and ASHES | JD198 (7/16) 0335 | JD198 (7/16) 1348 | Deployed extensometers E1-E4 on NRZ. NW of Crack - Recovered larval tubes 5-8. Virgin - Deployed 2 Hobos. Sample: 2 gtb. | 0758 - 1222 transit NRZ to ASHES. |
R556 | Mkr-33 | JD198 (7/16) 2112 | JD198 (7/16) 2334 | Bounce Dive. Mkr-33 -Recover Larval Tubes 1-4 NE of Mkr-33. Samples: 2 ss. | No good acoustic nav. |