UTC

Z(m)

Hdg

UTM X

UTM Y

Comments - Dive R546

Samples

Investigator

SubSmps

FrGrb#

AUTOMATED LOGGING SYSTEM FIXED ON THIS DIVE!!! All auto time, heading, depth and utm position information inaccurate before JD188/2300, when auto logging system was fixed. AUTO LOGGING INFO SHOULD BE CORRECT AFTER 2300. As always, positions in utm x/y columns are automated and not flagged for accuracy. Consult dive maps for final position data.

Tasks: Imagenex survey of Axial Southern Pillow Flow at 45 52' N. McLane pump and plankton net during survey. Suction sampling, place benchmark at fissure.

Bottom time: JD188(7/6) 2019- JD189(7/7) 1417

19:14:29 Jul 06 '00

1

192

430881

5092123

1915 - ROPOS is in the water. start dive

19:50:15 Jul 06 '00

978

153

430881

5092123

1951 - ROPOS is passing 1000m.

20:14:29 Jul 06 '00

1672

220

430881

5092123

2015 - ROPOS is leaving the cage. Bottom depth is 1720m. Not currently getting fixes.

20:18:09 Jul 06 '00

1704

44

430881

5092123

2019 - ROPOS is on the bottom. Bottom is pillow flow with a little sediment.

20:20:19 Jul 06 '00

1718

46

430881

5092123

2024 - Nav is now functioning again. 1 or 2 ranges out of 3 are good so far.

20:28:51 Jul 06 '00

1718

47

430881

5092123

2031 - ROPOS is looking for the fissure in order to place the benchmark. 2032 asking ship to move toward the fissure.

20:37:23 Jul 06 '00

1717

316

422076

5079214

2041 - Sheet flow next to pillows. A basket star.

20:40:23 Jul 06 '00

1717

317

422178

5079242

2044 - ROPOS is still moving along the bottom looking for the fissure. The ship is over the fissure according to NAV. Not much particulate in the water. Very clear.

20:43:13 Jul 06 '00

1718

317

422064

5079236

2048 - stalked crinoid. ROPOS is still looking for the fissure.

20:44:33 Jul 06 '00

1718

320

422054

5079245

2050 - a small ray

R546-001

20:45:23 Jul 06 '00

1719

317

422054

5079245

2051 - stalked crinoid

R546-002

20:46:33 Jul 06 '00

1719

317

421834

5078411

2052 - a bunch of little brittle stars, and the ray

20:52:23 Jul 06 '00

1720

346

421827

5078435

2059 - asking the ship to move an additional 50m West. Bottom is ropy flows.

20:57:43 Jul 06 '00

1719

282

419165

5079524

2105 - asking the ship move 100 m 060deg. Lots of basket stars.

21:03:15 Jul 06 '00

1715

281

422060

5079225

2109 - archive tapes both started.

21:13:45 Jul 06 '00

1721

58

422011

5079287

2114 - still looking for the fissure. Bottom is sheet flows.

21:16:45 Jul 06 '00

1721

57

422054

5079310

2117 - located fissure. Heading a little north. lava from the 1998 flow is evident in the bottom of the fissure.

21:18:15 Jul 06 '00

1721

32

422054

5079310

2117 - the fissure

R546-003

21:20:25 Jul 06 '00

1721

14

422054

5079310

2122 - ROPOS is setting down on the bottom. getting ready to DEPLOY the benchmark.

21:21:35 Jul 06 '00

1722

118

422054

5079310

fissure (benchmark legs in foreground)

R546-004

21:21:45 Jul 06 '00

1722

136

422054

5079310

2123 - positioning to DEPLOY Bmrk-66.

21:24:15 Jul 06 '00

1722

119

422213

5079347

2126 - placing the pressure sensor on the benchmark.

21:26:15 Jul 06 '00

1722

108

422040

5079299

2129 - still positioning pressure sensor on the benchmark.

21:27:27 Jul 06 '00

1722

110

422040

5079299

2130 - Begin pressure sensor measurement.

21:28:07 Jul 06 '00

1722

109

422040

5079299

2130 - begin pressure sensor measurement. Bmrk-66 x=422091 y=5079330.

R546-005

21:29:17 Jul 06 '00

1722

117

422040

5079299

2132 - cage motor off. checking to see if we have good nav fixes.

21:35:17 Jul 06 '00

1722

109

422255

5079439

2140 - ophiuroids

R546-006

21:36:27 Jul 06 '00

1723

109

422317

5079467

tunicate, worm casing, 2 ophiuroids and a polychaete

R546-007

21:38:07 Jul 06 '00

1722

108

422255

5079441

limpet

R546-008

21:48:17 Jul 06 '00

1723

108

422253

5079445

2154 - coralline

R546-009

21:48:57 Jul 06 '00

1723

108

422253

5079445

2155 - the fissure at bmk 66

R546-010

22:03:07 Jul 06 '00

1723

108

422257

5079438

Location: Bmrk-66 at fissure. Crinoid

R546-011

22:03:07 Jul 06 '00

1723

108

422257

5079438

2203 - end of pressure sensor measurement.

22:03:37 Jul 06 '00

1723

108

422253

5079446

2204 - ROPOS is repositioning. Update will be down for a few minutes. Returning pressure sensor to it cradle.

22:03:37 Jul 06 '00

1723

108

422253

5079446

Bmrk-66 and the fissure

R546-012

22:03:37 Jul 06 '00

1723

108

422253

5079446

collapse in fissure

R546-013

22:03:37 Jul 06 '00

1723

108

422253

5079446

2207 - pressure sensor is secure. ROPOS is moving to an area to suction sediments.

22:03:37 Jul 06 '00

1723

108

422253

5079446

2212 - pump is on, positioning arm to collect sample.

22:03:37 Jul 06 '00

1723

108

422253

5079446

suction sample bottle J-3 with filter 200um

R546-014

22:03:37 Jul 06 '00

1723

108

422253

5079446

2212 Suction Sample Jar 3 PELAGIC SEDIMENT area of the fissure. Z=1723. Bmrk-66 x=422091, y=5079330.

R546-SS-J3-001

Juniper/ Tunnicliffe

22:03:37 Jul 06 '00

1723

108

422253

5079446

2216 pump off

22:03:37 Jul 06 '00

1723

108

422253

5079446

2217 Suction sample flush into jar 2, basalt chips (Rk) z=1723. Fissure Bmrk-66.

R546-SS-J2-0002

J Chadwick

22:03:37 Jul 06 '00

1723

108

422253

5079446

2217 - Flush into jar 2. Caught a few basalt chips.

22:20:13 Jul 06 '00

1723

87

422081

5079375

2220 - NAV is working?

22:22:03 Jul 06 '00

1723

87

422090

5079333

2222 -This is a good fix for the BM location: x=422089 y=5079332 depth=1723. ROPOS is 2 m from Bmrk-66.

22:23:13 Jul 06 '00

1723

87

422100

5079281

R546-015

22:27:13 Jul 06 '00

1723

87

422095

5079335

2227 start McLane pump at 7 liter/min

22:30:33 Jul 06 '00

1723

87

422089

5079334

2230 - Imagenex is collecting good data. ROPOS is going to the south end of line 9 to begin survey.

22:35:33 Jul 06 '00

1716

205

422046

5079204

2235 - asking ship to move the South end of line 9.

22:44:15 Jul 06 '00

1698

203

421407

5078338

2241 - main tapes off, Tunnicliffe tape on

23:00:55 Jul 06 '00

1698

27

422037

5079259

NOTE: AT 2300 AUTOMATED LOGGING SYSTEM WAS FIXED!!! FROM THIS POINT ON THE TIME, HEADING, DEPTH INFO SHOULD BE CORRECT. LOCATION INFO IS STILL ONLY RAW NAVIGATION.

23:02:15 Jul 06 '00

1698

23

422040

5079272

2250 - Imagenex line 9 starts about this time.

23:18:17 Jul 06 '00

1703

39

422109

5079445

Imagenex survey started at about 2300.

00:19:01 Jul 07 '00

1699

32

422490

5080576

EOL #9 Imagenex at 0018 GMT; 422486/5080563 ROPOS 3 transponder fix, RMS 11.9

00:24:51 Jul 07 '00

1699

224

422539

5080522

SOL #10 at 0024; 422539/5080522 ROPOS 3 transponder fix, RMS 11.6

01:45:07 Jul 07 '00

1701

207

421900

5079937

EOL #10 at 0144; 422075/5079143 ROPOS 3 transp. fix, RMS 2.8

01:53:17 Jul 07 '00

1701

25

422135

5079119

SOL #11 at 0152; 422133/5079109, RMS 2.0

02:34:21 Jul 07 '00

1705

19

422346

5079751

0235 Still doing Imagenex. Ship is making funky designs on the screen.

03:09:34 Jul 07 '00

1696

20

422604

5080520

EOL 11

03:17:34 Jul 07 '00

1696

202

422706

5080542

SOL 12 at 0317

04:25:10 Jul 07 '00

1700

204

422185

5079100

End of Line 12

04:30:00 Jul 07 '00

1701

8

422246

5079114

SOL 13

04:53:42 Jul 07 '00

1697

27

422358

5079507

McLane pump turned off.

05:43:24 Jul 07 '00

1696

105

422710

5080499

EOL 13, moving to the east for line 14 which runs NE to SW

05:46:34 Jul 07 '00

1696

204

422770

5080463

SOL 14

06:56:20 Jul 07 '00

1702

197

419968

5079850

0658 End of Line #14

07:03:40 Jul 07 '00

1702

21

422362

5079089

Begin Line #15, South to North

08:11:36 Jul 07 '00

1697

33

422822

5080454

EOL 15

08:21:26 Jul 07 '00

1714

199

422887

5080381

SOL 16 at 08:15, ship having a little trouble getting on the line after the turn. Driving north to south.

08:51:08 Jul 07 '00

1722

199

422686

5079837

ROPOS guys concerned because main oil reservoir pressure is rising...

09:01:30 Jul 07 '00

1718

207

422623

5079655

Verena's videotape was stopped at 8:50 because the ROPOS guys wanted to watch the main reservoir gauge for a while.

09:33:22 Jul 07 '00

1701

199

422417

5079030

EOL 16, turning east for line 17. Oil pressure holding...

09:36:32 Jul 07 '00

1701

96

422466

5079031

SOL 17

10:47:58 Jul 07 '00

1699

51

422979

5080451

EOL 17.

10:51:28 Jul 07 '00

1707

202

423006

5080385

SOL 18. Heading south.

12:09:04 Jul 07 '00

1721

209

422686

5079487

Oil pressure seems to be holding. Started Verena's color camera video back up at 12:08. We're 2/3 down line 18.

12:19:44 Jul 07 '00

1722

201

422657

5079375

12:18 Color cam videotape changed for Verena.

12:52:56 Jul 07 '00

1714

195

422537

5078989

12:53 EOL 18. End of Imagenex survey. We will now transit back to Bmrk-66, where we started the dive to make a final pressure measurement. ROPOS will go up to the cage for the transit.

12:55:56 Jul 07 '00

1689

80

422534

5078990

12:54 Turned Verena's videotapes off.

13:00:06 Jul 07 '00

1669

304

422536

5079000

Time on SIT camera is ~45 sec fast.

13:04:18 Jul 07 '00

1669

290

422502

5079012

transiting to Bmrk-66

13:38:20 Jul 07 '00

1672

154

422153

5079267

Ship in position at Bmrk-66, ROPOS going down to bottom.

13:39:30 Jul 07 '00

1692

164

422108

5079324

Will put larvae net in biobox after we get to bottom.

13:41:50 Jul 07 '00

1722

169

422108

5079324

Back on bottom at Bmrk-66. Putting plankton net in port side of biobox. (S Pillow Flow at 45deg 52')

R546-net-0003

Tunnicliffe/ Metaxa

13:45:40 Jul 07 '00

1723

171

421075

5078207

Larvae net in biobox. Critters visible in glass tip. Embley color and SIT videotapes turned back on.

13:47:30 Jul 07 '00

1723

163

422098

5079289

R546-016

13:47:30 Jul 07 '00

1723

163

422098

5079289

Bmrk-66

R546-017

13:48:30 Jul 07 '00

1722

201

422098

5079289

Bmrk-66

R546-018

13:48:50 Jul 07 '00

1722

242

422098

5079289

Bmrk-66

R546-019

13:49:10 Jul 07 '00

1723

295

422098

5079289

Bmrk-66

R546-020

13:50:00 Jul 07 '00

1722

182

422106

5079281

Bmrk-66

R546-021

13:50:40 Jul 07 '00

1723

177

422106

5079281

Now sitting next to Bmrk-66. Lots of frame grabs on the way in. Marker has reflective tape on it, and that helped spot it.

13:52:50 Jul 07 '00

1723

158

422104

5079280

13:53 - Start of pressure reading at Bmrk-66.

13:54:40 Jul 07 '00

1723

157

424463

5078992

pressure measurement at Bmrk-66 at end of dive

R546-022

14:13:12 Jul 07 '00

1723

158

422103

5079258

14:13 - End pressure measurement at Bmrk-66.

14:16:42 Jul 07 '00

1723

147

422101

5079259

McLane pump sample. Volume=? Pumping at 7 liters/minute. (S Pillow Flow at 45deg 52')

R546-McLane-004

Tunnicliffe/ Metaxas

14:17:32 Jul 07 '00

1723

150

422098

5079332

ROPOS off the bottom, going back to the cage. End of dive R456. Embley videos off.

14:30:34 Jul 07 '00

1448

289

422102

5079341

ROPOS on deck at 1514

14:30:34 Jul 07 '00

1448

289

422102

5079341

jellyfish layer (while ascending through water column)

R546-023

14:30:34 Jul 07 '00

1448

289

422102

5079341

more jellies (while ascending to surface)

R546-024

R546 Dive Summary: Deployed Bmrk-66 at fissure edge. Bmrk-66 pressure measurement. Samples: 2 ss. Imagenex (Lines 9-18)-Samples: Plankton net tow, McLane pump (both during Imagenex survey).