Dive 554

UTC

Z(m)

Hdg

UTM X

UTM Y

Comments - Dive R554

Samples

Investigator

SubSmps

FrGrb#

Positions in utm x/y columns are automated and not flagged for accuracy. Consult dive maps for final position data.

Tasks: Area - Southern Pillow Flow at 45 52'N. Ground-truth geology of pillow mound anomaly, Finish Imagenex survey. Rock and suction sampling.

Bottom Time: JD197(7/15) 0612-2130

04:49 Ropos in the water.

05:18:30 Jul 15 '00

1008

267

422048

5080801

Cage stopped. We are going to position for start of line 1 for Imagenex survey.

05:18:30 Jul 15 '00

1008

267

422048

5080801

Trying to get STS up.

05:18:30 Jul 15 '00

1008

267

422048

5080801

Gumby on the gauges

R554-001

05:18:30 Jul 15 '00

1008

267

422048

5080801

Gumby on a roll

R554-002

05:18:30 Jul 15 '00

1008

267

422048

5080801

Turned McLane pump on at 6 l/min for 400 liters. Area of south pillow mounds - Imagenex survey area Total time was 5322 seconds. Lowest voltage was 27.7 volts DC. (Southern Pillow Flow at 45 52'N)

R554-McLane-0001

Metaxas/ Tunnicliffe

05:18:30 Jul 15 '00

1008

267

422048

5080801

No video will be recorded until Imagenex is over.

05:18:30 Jul 15 '00

1008

267

422048

5080801

Moving the ship to the beginning of line 1.

05:18:30 Jul 15 '00

1008

267

422048

5080801

Time is off again. 06:12 start of Imagenex line 1.

06:16:12 Jul 15 '00

1684

195

422032

5080760

Log info (time, depth etc.) is now correct, we had to restart the serial driver.

06:20:12 Jul 15 '00

1684

198

422024

5080718

We are now at the correct position for the start of line 1 (422023/5080695) with Ropos, although we started recording 8 minutes ago.

06:48:04 Jul 15 '00

1691

195

421866

5080227

The ship just had a steering failure and got a bit off the line. Ship will probably stop until it regains DP control.

06:57:24 Jul 15 '00

1698

194

421839

5080157

Ship seems to be going down the line again.

07:00:14 Jul 15 '00

1698

196

421831

5080137

Whoops, ship is going north...

07:05:16 Jul 15 '00

1698

191

421841

5080156

ROPOS telemetry crashed. When it rains it pours....

07:08:56 Jul 15 '00

1662

226

421834

5080158

ROPOS telemetry back up. ROPOS had floated up about 30-40 m.

07:10:06 Jul 15 '00

1689

209

421837

5080166

ROPOS back down in Imagenex range.

07:11:16 Jul 15 '00

1694

199

421837

5080177

ROPOS has gone straight backwards ~30 m along the line while the ship has been trying to regain steering control.

07:15:46 Jul 15 '00

1696

176

421844

5080157

Ship seems to be going down the line again. Before, they couldn't keep going down the line with the orientation they had without working the thrusters too hard. So they changed heading and now it seems to be OK. Let's hope anyway...

07:34:58 Jul 15 '00

1705

194

421755

5079892

McLane pump is off. Completed sample: 400 liters pumped. Total time was 5322 seconds. Lowest voltage was 27.7 volts DC. Pump is now sleeping. Now it is PURE IMAGENEX!

08:12:50 Jul 15 '00

1707

194

421564

5079310

EOL 1 (south end).

08:22:30 Jul 15 '00

1707

9

421613

5079295

SOL 2 (south end).

09:34:32 Jul 15 '00

1684

22

422102

5080693

End of line 2, moving to commence line 3.

09:37:32 Jul 15 '00

1683

194

422139

5080637

Commenced line 3.

10:49:36 Jul 15 '00

1701

197

421676

5079267

End of line, moving to get in position for line 4

11:06:28 Jul 15 '00

1700

278

421714

5079206

Start of line 4.

12:18:44 Jul 15 '00

1681

24

422209

5080658

End of line 4, moving to commence line 5.

12:23:24 Jul 15 '00

1681

187

422277

5080626

Start of line cinq...that's five for the English-speaking folks.

13:35:48 Jul 15 '00

1696

211

421786

5079219

End of line 5 at 1335; x=421791 y=5079234 (2 transponder fix)

13:39:50 Jul 15 '00

1696

25

421851

5079209

Start of line 6 at 1339; x=421856 y=5079209 (2 transp. fix)

14:35:24 Jul 15 '00

1691

26

422189

5080230

Particulate matter in water column during imagenex

R554-003

14:55:46 Jul 15 '00

1680

112

422320

5080628

EOL 6 at 1454 x=422314 y=5080617

14:59:46 Jul 15 '00

1681

199

422366

5080602

SOL 7 x=433469 y=5080595

16:13:10 Jul 15 '00

1697

204

421902

5079194

EOL 7 x=421889 y=507918 time is 16:16. SOL8 x=421966 y=50789174. The last Imagenex line of NeMO 2000! Yippee!

17:27:26 Jul 15 '00

1687

23

422427

5080581

EOL 8 x=422425 y=5080581. End of Imagenex.

17:31:26 Jul 15 '00

1668

218

422442

5080582

Ship stopped; then headed to Point A at one knot.

17:46:08 Jul 15 '00

1708

93

422501

5080526

On the bottom. Tapes on.

17:47:58 Jul 15 '00

1714

269

422605

5080637

Camera count starting at 19. Photo #20 taken.

17:48:18 Jul 15 '00

1712

266

423900

5081741

Pillows on top of something else. Photo #21.

17:48:58 Jul 15 '00

1713

270

422500

5080522

Photo #22.

17:49:28 Jul 15 '00

1715

266

422500

5080522

Photo #23. Sheet flow underneath.

17:49:48 Jul 15 '00

1718

267

423857

5078568

Photo #24.

17:49:08 Jul 15 '00

1713

267

422500

5080522

Pillows

R554-004

17:49:28 Jul 15 '00

1715

266

422500

5080522

Sheet flow under pillows

R554-005

17:50:48 Jul 15 '00

1719

267

423857

5078568

Photo #25.

17:51:38 Jul 15 '00

1718

315

423802

5078540

Photo #26

17:51:48 Jul 15 '00

1716

19

423802

5078540

Photo #27 of a cavern. On the western wall of the fissure.

17:51:28 Jul 15 '00

1717

269

423802

5078540

More sheet lavas

R554-006

17:51:48 Jul 15 '00

1716

19

423802

5078540

Cavern

R554-007

17:52:08 Jul 15 '00

1718

350

423802

5078540

Fissure wall

R554-008

17:52:28 Jul 15 '00

1717

11

423802

5078540

Fissure wall again

R554-009

17:53:28 Jul 15 '00

1717

279

423802

5078540

Photo #29

17:53:38 Jul 15 '00

1717

295

423802

5078540

North end of the graben

R554-010

17:54:28 Jul 15 '00

1718

110

422608

5080632

Heading east across the bottom of the canyon.

17:54:58 Jul 15 '00

1717

90

422608

5080632

Photo 30, Photo 31

17:55:38 Jul 15 '00

1717

76

422608

5080632

Photo 32

17:56:08 Jul 15 '00

1715

108

422608

5080632

Photo 33 of an overhang

17:56:38 Jul 15 '00

1719

96

422608

5080632

Photo #34 of the east wall of the graben

17:57:18 Jul 15 '00

1719

83

422608

5080632

Photo 35

17:57:38 Jul 15 '00

1718

210

422608

5080632

Photo 36

17:57:48 Jul 15 '00

1718

110

422526

5080522

Photo 37 of sheet flow

17:54:58 Jul 15 '00

1717

90

422608

5080632

East wall of graben

R554-011

17:55:28 Jul 15 '00

1717

92

422608

5080632

Top of east wall of graben

R554-012

17:56:08 Jul 15 '00

1715

108

422608

5080632

Another view

R554-013

17:56:08 Jul 15 '00

1715

108

422608

5080632

Overhang on the top of east wall

R554-014

17:56:38 Jul 15 '00

1719

96

422608

5080632

Sheet flow on east wall

R554-015

17:56:38 Jul 15 '00

1719

96

422608

5080632

Ledge of east wall of graben

R554-016

17:57:48 Jul 15 '00

1718

110

422526

5080522

More sheets on east wall

R554-017

17:57:48 Jul 15 '00

1718

110

422526

5080522

East wall

R554-018

17:58:28 Jul 15 '00

1716

90

422526

5080522

Lobate lavas

R554-019

17:59:28 Jul 15 '00

1713

94

422546

5080512

Looking at older, pillow lava on the eastern side of the fissure.

17:59:18 Jul 15 '00

1713

91

422526

5080522

Pillows, what looks like older lava

R554-020

17:59:58 Jul 15 '00

1713

347

422548

5080512

Going back to the western wall of the fissure.

18:00:08 Jul 15 '00

1712

256

422548

5080512

Photo 38

18:00:28 Jul 15 '00

1714

268

422548

5080512

Photo 39

18:00:08 Jul 15 '00

1712

256

422548

5080512

Contact on the east, few meters from the lip of east wall

R554-021

18:00:18 Jul 15 '00

1713

270

422548

5080512

Another point of contact old and new lava

R554-022

18:00:58 Jul 15 '00

1715

254

422548

5080512

Contact just a few meters over the lip of the east wall. Photo 40.

18:01:28 Jul 15 '00

1715

108

422548

5080512

Close up of pillow lavas

R554-023

18:01:48 Jul 15 '00

1716

129

422548

5080512

Close up of old pillows

R554-024

18:02:58 Jul 15 '00

1717

108

422548

5080512

Old lava

R554-025

18:03:38 Jul 15 '00

1717

103

422548

5080512

The canyon seems to be 10 m deep on the west side.

18:04:28 Jul 15 '00

1717

105

422548

5080512

Trying to sample a rock for J. Chadwick.

18:07:28 Jul 15 '00

1717

58

422538

5080509

Picked up a BIG rock

18:07:38 Jul 15 '00

1717

57

422538

5080509

John's rock

R554-026

18:08:18 Jul 15 '00

1717

57

422538

5080509

Opening up the Biobox. Looking to see if the rock will fit.

18:08:48 Jul 15 '00

1717

58

422623

5080620

John's (old lava) rock in the biobox

R554-027

18:08:58 Jul 15 '00

1717

59

422623

5080620

Big rock of older pillow lava from the east side of the fissure, sampled at the contact. In the stbd biobox. (Southern Pillow Flow at 45 52'N)

R554-RK-0002

J Chadwick

18:10:50 Jul 15 '00

1717

59

422532

5080517

Old pillow lava, close up

R554-028

18:12:10 Jul 15 '00

1717

58

422536

5080523

Photo 41 taken at sample site.

18:12:10 Jul 15 '00

1717

58

422536

5080523

More pillows

R554-029

18:12:50 Jul 15 '00

1715

91

422520

5080535

Back at the eastern end of the fissure.

18:13:10 Jul 15 '00

1718

91

422528

5080523

Close up above the cavern

R554-030

18:13:30 Jul 15 '00

1720

71

422528

5080524

Side of cavern

R554-031

18:16:20 Jul 15 '00

1720

46

422526

5080525

Second sampling site: 422526, 5080523 - Stirring up a lot of floc.

18:17:00 Jul 15 '00

1720

46

422538

5080515

John's rock sample of new lava

R554-032

18:17:10 Jul 15 '00

1720

46

422538

5080515

Sampling new lava from the eastern side of the fissure. It's a flat piece of crust with drips on the bottom. Starboard Biobox. (Southern Pillow Flow at 45 52'N)

R554-RK-0003

J Chadwick

18:18:10 Jul 15 '00

1720

46

422527

5080525

Flat piece of crust with drips at the bottom

R554-033

18:22:40 Jul 15 '00

1716

262

422528

5080521

Going back west to the other side of the fissure.

18:21:40 Jul 15 '00

1719

60

422520

5080536

Crab falling off the lip

R554-034

18:21:40 Jul 15 '00

1719

60

422520

5080536

Crab losing his grip

R554-035

18:21:50 Jul 15 '00

1718

92

422529

5080524

He is off the wall

R554-036

18:24:00 Jul 15 '00

1720

266

422505

5080532

Photo 42 of the west wall.

18:24:40 Jul 15 '00

1718

266

420074

5080897

The fissure is 20m deep.

18:25:20 Jul 15 '00

1714

265

420074

5080897

Fissure is about 8m deep on this side.

18:25:50 Jul 15 '00

1713

270

420074

5080897

Looking at old pillows on the top of the western wall.

18:26:10 Jul 15 '00

1713

268

420074

5080897

Photo 43, 44

18:26:40 Jul 15 '00

1717

263

422371

5080378

Photo 45

18:24:40 Jul 15 '00

1718

266

420074

5080897

West wall

R554-037

18:24:40 Jul 15 '00

1718

266

420074

5080897

West wall again

R554-038

18:25:10 Jul 15 '00

1716

267

420074

5080897

Old pillows on top of the western wall

R554-039

18:27:20 Jul 15 '00

1716

277

419863

5079963

Bottom of picture shows the slight overflow

R554-040

18:28:20 Jul 15 '00

1715

279

422502

5080511

Heading south-southwest along the fissure, close to the western wall. Photo 46.

18:34:20 Jul 15 '00

1717

279

422627

5080642

Photo 47. Upper rim of the west wall.

18:34:10 Jul 15 '00

1715

290

422627

5080642

Upper rim of the west wall

R554-041

18:35:00 Jul 15 '00

1714

236

424739

5079672

Moving the ship to target B at half a knot.

18:41:52 Jul 15 '00

1716

281

420077

5080859

photo 49 - staining on wall (west wall of fissure, drain back remnants).

18:41:52 Jul 15 '00

1716

281

420077

5080859

West wall with drainback remnants

R554-042

18:42:02 Jul 15 '00

1715

238

420077

5080859

Look at the west wall with drainback remnants.

R554-043

18:47:12 Jul 15 '00

1716

297

422487

5080428

good fix x=422487 y= 5080428

18:49:12 Jul 15 '00

1716

241

422459

5080406

good fix on ROPOS photo 50 western lip fissure

18:53:02 Jul 15 '00

1715

237

423020

5079341

Western edge of wall

R554-044

18:55:22 Jul 15 '00

1716

274

422737

5078778

photo 51 pillows on the top of the western wall near target B

18:55:12 Jul 15 '00

1716

264

422737

5078778

pillows on the western wall near target B

R554-045

18:57:02 Jul 15 '00

1716

269

422729

5078793

ROPOS is heading East about 50 meters

18:58:02 Jul 15 '00

1716

89

421718

5078924

photo 52 eastern wall of the fissure, older lava on top

18:58:22 Jul 15 '00

1718

86

422726

5078798

photo 53 older lava

18:58:52 Jul 15 '00

1719

90

423735

5078684

photo 54 older lava

18:59:02 Jul 15 '00

1718

89

423735

5078684

photo 55 eastern fissure in older flow

18:59:32 Jul 15 '00

1717

56

423735

5078684

photo 56 looking south down the fissure

18:59:32 Jul 15 '00

1717

56

423735

5078684

eastern fissure

R554-046

18:59:42 Jul 15 '00

1717

206

423735

5078684

eastern fissure

R554-047

19:00:42 Jul 15 '00

1719

222

423735

5078684

fissure is 2m wide, graben (small) with intact pillows on the floor

19:01:42 Jul 15 '00

1719

232

423299

5078642

photo 57 graben in the eastern fissure

19:02:52 Jul 15 '00

1721

251

422958

5083163

inside the fissure

R554-048

19:04:02 Jul 15 '00

1720

251

422958

5083163

photo 58 wall of the fissure

19:06:34 Jul 15 '00

1719

240

422417

5080236

photo 59 down in the bottom of the fissure with heavy sediment.

19:07:44 Jul 15 '00

1722

246

422444

5080273

bottom of fissure

R554-049

19:07:34 Jul 15 '00

1721

243

422444

5080273

good fix x=422444 y=5080273

19:08:24 Jul 15 '00

1722

246

422370

5080201

bottom of fissure

R554-050

19:09:34 Jul 15 '00

1719

248

422370

5080201

photo 60 on the western lip of the older fissure

19:13:04 Jul 15 '00

1720

228

422732

5078846

fissure

R554-051

19:13:04 Jul 15 '00

1720

228

422732

5078846

photo 61 bottom of fissure with heavy sediment

19:14:44 Jul 15 '00

1714

205

422729

5078845

ROPOS is heading west back to the other fissure

19:16:04 Jul 15 '00

1715

262

422412

5080218

At the eastern lip of the big fissure

19:17:04 Jul 15 '00

1721

266

424443

5079911

Western lip of the larger fissure. Looks like new lava on the lip

19:17:14 Jul 15 '00

1721

267

424443

5079911

western lip of the larger fissure

R554-052

19:17:34 Jul 15 '00

1719

255

424443

5079911

South of point B about ?? meters. good fix 422392/5080262

19:18:34 Jul 15 '00

1717

271

422392

5080262

R554-053

19:18:44 Jul 15 '00

1717

271

422392

5080262

R554-054

19:19:14 Jul 15 '00

1716

264

422383

5080255

Driving northwest a little bit to get cage near us. Good fix at same place, just a little bit to the west. Looks like new lava flows quite far to the west here. Past big fissure driving to west/northwest to end of tether to look for contact.

19:20:14 Jul 15 '00

1714

312

422375

5080263

422356/5080293 good fix. At our westernmost point. Move to east and back towards older lavas. At little collapse pit. Photo 65.

19:21:54 Jul 15 '00

1713

324

422320

5080231

R554-055

19:22:54 Jul 15 '00

1713

334

422356

5080293

R554-056

19:22:54 Jul 15 '00

1713

334

422356

5080293

R554-057

19:23:44 Jul 15 '00

1713

335

422322

5080254

R554-058

19:25:54 Jul 15 '00

1714

88

422361

5080253

Sitting right over west wall of big fissure.

19:26:44 Jul 15 '00

1713

107

422406

5080303

422406/5080303. At western wall of larger fissure.

19:27:54 Jul 15 '00

1715

153

422406

5080299

ROPOS perpendicular to fissures. compass reads 153, and should be about 110

19:28:54 Jul 15 '00

1714

129

422416

5080288

Either that or the mesotech is pointing the wrong way. Now at small fissure. 422429/5080281

19:29:44 Jul 15 '00

1718

244

422444

5080272

Moving the ship toward target C. 422447/5080266. At small fissure. (older lavas)

19:30:24 Jul 15 '00

1716

231

422448

5080267

small fissure to the east of the main fissure

R554-059

19:32:44 Jul 15 '00

1714

227

422406

5080214

422439/5080250. Heading to point C (closer to B)

19:34:04 Jul 15 '00

1714

227

422399

5080209

Heading south along smaller older fissure, right now about 50 meters north of where 2 fissures merge.

19:38:26 Jul 15 '00

1716

227

422440

5080271

older eruptive fissure

R554-060

19:38:26 Jul 15 '00

1716

227

422440

5080271

photo 67. Smaller older eruptive fissure. Heading south to where the smaller and larger fissure merge.

19:39:56 Jul 15 '00

1716

219

422392

5080195

Fissure getting narrower.

R554-061

19:39:36 Jul 15 '00

1717

222

422392

5080195

Fissure is narrowing into a crack here. Photo 68. About 1 meter wide and decreasing. Looks like it steps over to the east.

19:40:56 Jul 15 '00

1717

224

422366

5080167

Older, smaller fissure steps over into larger fissure. Photo 69, eastern lip of fissure with new lava.

19:40:16 Jul 15 '00

1716

222

422392

5080195

end of small fissure

R554-062

19:40:26 Jul 15 '00

1716

218

422392

5080195

beginning of larger fissure

R554-063

19:40:26 Jul 15 '00

1716

218

422392

5080195

beginning of larger fissure

R554-064

19:41:36 Jul 15 '00

1717

233

422409

5080244

edge of the fissure

R554-065

19:41:36 Jul 15 '00

1717

233

422409

5080244

Photo 71. Old crack pinched off. Stepped to west another fissure branch with new lava in it. Photos 72, 73.

19:42:46 Jul 15 '00

1717

231

422391

5080181

New lava on the edge of the pillow mound.

R554-066

19:42:46 Jul 15 '00

1717

231

422391

5080181

Now coming up to edge of pillow mound where new lava covers everything. Photo 75. Great contact.

19:43:16 Jul 15 '00

1718

240

422378

5080173

contact between old and new lava

R554-067

19:43:56 Jul 15 '00

1720

226

422364

5080156

On the old seafloor between intermediate fissure and old flow.

19:43:56 Jul 15 '00

1720

226

422364

5080156

contact on the seafloor between intermediate fissure and new flow

R554-068

19:45:26 Jul 15 '00

1720

226

422413

5080213

east wall of the old fissure

R554-069

19:45:26 Jul 15 '00

1720

226

422413

5080213

good fix 422413/5080213. East wall of old fissure.

19:46:36 Jul 15 '00

1720

280

422386

5080181

Still in big fissure depression that continues on south.

19:46:46 Jul 15 '00

1719

283

422386

5080181

edge of the fissure as it continues

R554-070

19:47:36 Jul 15 '00

1720

135

422362

5080172

Don't need to stop at point C, will keep going towards point D. about bearing of 170 degrees

19:48:56 Jul 15 '00

1716

130

422379

5080178

eastern edge of the depression

R554-071

19:49:46 Jul 15 '00

1720

153

422359

5080146

pillows in the old fissure.

R554-072

19:49:06 Jul 15 '00

1718

170

422379

5080178

Photo 76 taken a minute ago. Looking at eastern edge of large depression. Fissure is turning into a depression, filled with pillows. Broadening out filled with pillows not sheet drainout here. Change tapes 1946

19:50:36 Jul 15 '00

1721

203

422359

5080146

Photo 78. Looking southwest. In depression

19:51:06 Jul 15 '00

1722

233

422379

5080151

422379/5080151. Logged fixes in comment column are all good fixes (at least as good as it gets with acoustic nav)

19:52:56 Jul 15 '00

1723

204

422389

5080131

bottom of lineated depression

R554-073

19:52:46 Jul 15 '00

1722

203

422379

5080151

Photo 80. Driving down in bottom of depression. Went from pillows to lineated flow. Changing its character all along. Looking like a sheet drainout again.

19:53:36 Jul 15 '00

1724

210

422389

5080131

Photo 81. Eastern edge of the depression.

19:53:36 Jul 15 '00

1724

210

422389

5080131

eastern edge of the depression

R554-074

19:54:06 Jul 15 '00

1723

196

422388

5080100

close-up of eastern edge of depression

R554-075

19:54:16 Jul 15 '00

1723

196

422388

5080100

Photo 82. Younger sheet stuff. Lobate stuff on the outside.

19:56:06 Jul 15 '00

1714

308

422363

5080105

422363/5080105.

19:57:26 Jul 15 '00

1720

202

422372

5080081

422372/5080081. Photo 83. Island in the middle of the channel.

19:57:26 Jul 15 '00

1720

202

422372

5080081

collapse area

R554-076

19:58:06 Jul 15 '00

1720

194

422363

5080062

Now in a larger collapse area - 422356/5080039

19:58:56 Jul 15 '00

1720

209

422356

5080039

All jumbled sheet from here. (heading south) Broader depression draining to the east and possibly the west?

19:59:56 Jul 15 '00

1719

204

422354

5079993

jumbled flow inside the drainout

R554-077

19:59:56 Jul 15 '00

1719

204

422354

5079993

Photo 84 inside drainout - jumbled flow. 422354/5079993

20:00:46 Jul 15 '00

1721

198

422339

5079965

fresh lava inside of drainout

R554-078

20:02:16 Jul 15 '00

1722

204

422365

5079930

close up of fresh lava in drainout

R554-079

20:02:16 Jul 15 '00

1722

204

422365

5079930

photo 86. jumbled new flow 422365/50879931

20:02:56 Jul 15 '00

1723

208

422358

5079965

Sampling a piece of shiny newer lava with glass in jumbled collapse flow. (~50 meters NW of point D) Putting it in the purse. It's mammoth. Bacterial subsample. (Southern Pillow Flow at 45 52'N)

R554-RK-0004

J Chadwick

Moyer

20:06:38 Jul 15 '00

1723

212

422724

5078907

Next point with ROPOS will be D

20:07:18 Jul 15 '00

1723

211

423101

5080739

new lava sample R554-RK-003

R554-080

20:11:18 Jul 15 '00

1722

160

422352

5079914

Photo 87, moving south along the depression. younger lavas

20:11:48 Jul 15 '00

1724

157

422373

5079953

Fractured fresh lava Freshly broken pillow lavas.

R554-081

20:11:48 Jul 15 '00

1724

157

422373

5079953

Photo 88. sort of a scarp in new lava (edge of the pit?) collapsed down. 422384/5079912

20:12:48 Jul 15 '00

1724

155

422380

5079943

fresh broken pillow lava

R554-082

20:13:08 Jul 15 '00

1724

155

422387

5079944

Photo 89, 90. Down inside the pit at target D.

20:13:58 Jul 15 '00

1726

151

420381

5080590

Photo 91. In some sort of a pit. Drainage tubes

20:14:58 Jul 15 '00

1725

156

420172

5078043

Large drainage pit. Beginning of lava drainage tube? Photo 93- 95.

20:14:38 Jul 15 '00

1725

157

420381

5080590

drainage feature at the base of the pit

R554-083

20:15:28 Jul 15 '00

1725

186

420172

5078043

drainage lava tube at the bottom of collapsed pit

R554-084

20:15:48 Jul 15 '00

1725

170

420172

5078043

close up of drainage lava tube

R554-085

20:16:18 Jul 15 '00

1726

193

420172

5078043

This drainage pit is probably at point D 422400/5079900. Photo 96 - Beautiful pillars. Photo 97

20:17:28 Jul 15 '00

1724

206

422549

5079140

Neptune's bathtub. Photo 98. Facing southwest looking at pillars grown into the wall Photo 99

20:16:58 Jul 15 '00

1726

234

422553

5079145

pillar near drainage pit

R554-086

20:17:08 Jul 15 '00

1725

256

422553

5079145

close-up pillar

R554-087

20:17:08 Jul 15 '00

1725

256

422553

5079145

pillar near drainage pit

R554-088

20:17:18 Jul 15 '00

1724

249

422549

5079140

pillar and drainage pit

R554-089

20:18:58 Jul 15 '00

1720

106

422544

5079144

At the southeast edge of the drainage area. On top going east. All lobates on the top. photo 100

20:19:28 Jul 15 '00

1721

118

422555

5079130

Pillow lava with bacterial mats and Fe-oxides?

R554-090

20:21:18 Jul 15 '00

1723

111

422579

5079158

shallow drainout coming up

20:21:28 Jul 15 '00

1722

102

422579

5079158

shallow drainout

R554-091

20:21:58 Jul 15 '00

1724

109

422586

5079160

photo 102 shallow collapse in the lobates.

20:21:48 Jul 15 '00

1723

102

422579

5079158

shallow collapsed outside of big pit

R554-092

20:23:18 Jul 15 '00

1722

92

422595

5079142

turning from easterly (not going to 'E') heading south to target F.

20:24:58 Jul 15 '00

1724

205

423585

5078790

Ran into a second pit. continuing south

20:26:18 Jul 15 '00

1725

205

420477

5077846

down inside the smaller pit. photo 103 beta on photo 104 down inside the smaller pit.

20:27:18 Jul 15 '00

1727

166

422447

5079849

pillar

R554-093

20:27:28 Jul 15 '00

1727

224

422447

5079849

the pillar close up

R554-094

20:26:58 Jul 15 '00

1728

157

422447

5079849

Down inside smaller pit looking around. Alcove. Photo 106-107 Pit is about 5 meters deep. Photo 108

20:28:18 Jul 15 '00

1726

189

423214

5078778

Photo 109. Moving on.

20:28:38 Jul 15 '00

1726

188

420422

5077882

lava pillars and collapsed pit

R554-095

20:28:58 Jul 15 '00

1726

187

420330

5077930

Photo 110

20:29:48 Jul 15 '00

1723

154

419502

5082470

Photo 111

20:30:38 Jul 15 '00

1724

158

419502

5082470

photo 112. Lobates heading towards target F.

20:32:40 Jul 15 '00

1722

193

419502

5082470

highlights off.

20:33:10 Jul 15 '00

1723

203

419502

5082470

Photo 114, older lavas

20:34:20 Jul 15 '00

1727

197

421659

5080620

heading to target F, seafloor, old sediments

R554-096

20:34:40 Jul 15 '00

1728

197

422445

5079823

lava whorl, old sediments

R554-097

20:33:30 Jul 15 '00

1723

173

423200

5080630

Going to sit down in this area. Heading towards point F. Lavas look old. Photos 115 and 116.

20:35:20 Jul 15 '00

1728

303

422441

5079832

Photo 117. Photo 118 is ophuroids.

20:37:00 Jul 15 '00

1728

313

422441

5079827

Gorgonian (soft coral) on older lava.

20:37:00 Jul 15 '00

1728

313

422441

5079827

small gorgonian

R554-098

20:37:10 Jul 15 '00

1728

314

422441

5079827

gorgonian

R554-099

20:37:40 Jul 15 '00

1728

286

422441

5079827

These are definitely older lavas (some bio here). Whorls, pressure ridges or flow fronts over this older sheet?

20:39:00 Jul 15 '00

1724

235

422433

5079792

Photo 119. Getting into pillows.

20:39:20 Jul 15 '00

1725

232

422433

5079792

older pillows

20:39:40 Jul 15 '00

1724

233

422433

5079792

cage is off. Trying to get a fix here. yippee good fix!! 422425/5079703

20:40:50 Jul 15 '00

1725

213

422426

5079701

unidentified fish

R554-100

20:40:50 Jul 15 '00

1725

213

422426

5079701

unidentified fish

R554-101

20:42:40 Jul 15 '00

1725

215

422426

5079700

Photo 120. Shallow collapse with lobates. Right on the edge. Photo 121.

20:43:40 Jul 15 '00

1724

213

422424

5079675

422424/5079675 A little flatter in this area. Obviously older lavas.

20:43:50 Jul 15 '00

1724

211

422424

5079675

stalkless crinoid

R554-102

20:44:20 Jul 15 '00

1724

212

422422

5079644

stalkless crinoid

R554-103

20:45:00 Jul 15 '00

1725

212

422401

5079725

Stalked crinoid?

R554-104

20:44:40 Jul 15 '00

1725

203

422422

5079644

Appear to be in the middle of depression here.

20:45:40 Jul 15 '00

1726

209

421434

5078530

stalked crinoid

R554-105

20:45:50 Jul 15 '00

1726

212

421434

5078530

stalked crinoid (seapen) 422422/5079644

20:47:40 Jul 15 '00

1723

6

422477

5079355

Going back to F, we're there. Will move the ship to the west from here.

20:48:50 Jul 15 '00

1724

298

421243

5076778

Moving ROPOS SW about 50 meters.

20:50:10 Jul 15 '00

1723

239

422469

5079308

photo 122, small fissure

20:50:10 Jul 15 '00

1723

239

422469

5079308

small fissure

R554-106

20:51:30 Jul 15 '00

1723

248

422458

5079315

Stopping to get a fix before move ship to west. Good fix 422363/5079655

20:54:00 Jul 15 '00

1724

242

422357

5079720

Will move ship 200 meters due east.

20:57:20 Jul 15 '00

1724

293

422354

5079729

photo 123 of pillow ridge with abrupt drop off on other side Photo 124 422359/5079635. Tectonic?

20:58:30 Jul 15 '00

1720

20

422336

5079738

new fissure

R554-107

20:58:20 Jul 15 '00

1720

11

422336

5079738

Photo 125 of fissure on other side of ridge. Photo 126.

20:58:40 Jul 15 '00

1720

57

422336

5079738

New fissure or fault?

R554-108

20:59:10 Jul 15 '00

1724

358

422336

5079738

photo 127. 422338/5079677. Could be a fault? Photo 128

21:00:12 Jul 15 '00

1728

330

422332

5079680

Sheets in the middle of the low. All of this is older lavas. Now heading towards the new pillow mound.

21:01:02 Jul 15 '00

1730

327

422320

5079687

422520/5079687. Photo 129. Sheet flows

21:01:52 Jul 15 '00

1727

319

422303

5079743

Ropey to jumbled flows, now coming up the ridge again.

21:01:32 Jul 15 '00

1729

317

422318

5079694

ropey jumbled flows

R554-109

21:01:32 Jul 15 '00

1729

317

422318

5079694

older sheet flows

R554-110

21:02:32 Jul 15 '00

1727

305

422307

5079696

422293/5079696

21:04:02 Jul 15 '00

1728

302

422297

5079690

biobouquet species....

R554-111

21:04:02 Jul 15 '00

1728

302

422297

5079690

unidentified species

R554-112

21:05:12 Jul 15 '00

1728

302

420359

5080351

contact on western edge. pillows with yellow coating (422278/5079699). Photo 132

21:05:12 Jul 15 '00

1728

302

420359

5080351

contact old/new lava

R554-113

21:05:22 Jul 15 '00

1728

299

422278

5079699

close-up contact

R554-114

21:06:22 Jul 15 '00

1728

305

422263

5079699

422263/5079699 contact and sampling area.

21:07:32 Jul 15 '00

1728

306

422263

5079697

grabbing R554-RK-005

R554-115

21:07:22 Jul 15 '00

1728

304

422263

5079697

Contact at western edge of depression - east side of high ridge. (Southern Pillow Flow at 45 52'N)

R554-Rk-0005

J Chadwick

21:10:02 Jul 15 '00

1728

322

422359

5079232

grabbing the new lava sample

R554-116

21:10:12 Jul 15 '00

1728

322

422359

5079232

grabbing the new lava sample

R554-117

21:09:52 Jul 15 '00

1728

321

422358

5079251

Grabbing new chunk of lava lots of glass. Contact Western edge of the depression, eastern edge of high ridge. (Southern Pillow Flow at 45 52'N)

R554-Rk-0006

J Chadwick

21:12:22 Jul 15 '00

1728

326

422356

5079249

Photo 133 of new pillow lavas. Heading west for high ridge.

21:12:42 Jul 15 '00

1727

295

420192

5078286

Photo 134. More pillows.

21:13:02 Jul 15 '00

1726

294

420192

5078286

Photo 135. more of the same. Depth about 1725.

21:13:52 Jul 15 '00

1721

293

422332

5079252

Photo 136

21:14:22 Jul 15 '00

1720

295

422316

5079237

new lava, heading west

R554-118

21:14:22 Jul 15 '00

1720

295

422316

5079237

Extension of western side of ridge. Coming up to top of high ridge.

21:15:42 Jul 15 '00

1721

293

422177

5079693

Sitting at the top of the ridge. 422178/5079692 - Photo 137

21:17:02 Jul 15 '00

1723

292

422164

5079751

top of ridge

R554-119

21:18:12 Jul 15 '00

1723

295

422158

5079761

Photo 138. Going down the west side of the large ridge. Is it really an eruptive mound?

21:18:52 Jul 15 '00

1725

293

422143

5079748

422143/5079688 heading west downhill. Will move ship another 150 meters west.

21:21:32 Jul 15 '00

1725

292

422136

5079682

422135/5079680 - moving west

21:24:12 Jul 15 '00

1726

292

422123

5079679

422124/5079679 Still moving west

21:26:42 Jul 15 '00

1727

283

422119

5079673

photo 139. Weird pillow formation

21:26:52 Jul 15 '00

1727

287

422119

5079673

weird pillow, new lava

R554-120

21:27:22 Jul 15 '00

1727

287

422105

5079668

422105/5079668 Going down slope

21:28:24 Jul 15 '00

1727

291

422096

5079701

contact new, old lava

R554-121

21:28:44 Jul 15 '00

1729

294

422078

5079722

close-up contact

R554-122

21:28:14 Jul 15 '00

1727

284

422096

5079701

Contact. Photo 140 offset from eruptive fissure. (eruptive mound??) 422089/5079666 Very subtle

21:30:34 Jul 15 '00

1731

282

422105

5079664

End of the dive. Geology rocks!

22:28:44 Jul 15 '00

2

94

422049

5079692

ROPOS on deck at 2223

R554 Dive Summary: 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.