Dive R491  
      Dive Plan: Elevator will be used to gather experiments from Mkr-33, weather permitting. Suction sampling will be done there and at other active vents to the north. Biology and rocks will also be sampled Imagenex survey along western edge of '98 lava flow.  
      ROPOS Configuration: Biobox, Slurp Sampler, Gas Tights, Imagenex, and the other cameras.  
      Note: Nav fixes not edited in the logs. All fixes were logged, regardless of accuracy. Use the dive plots to determine actual positions.  
  UTC Hour Min Depth (m) Sub Hdng (deg) UTM X UTM Y Comments Frmgrbs, Photos, Samples
2 0 368 162 424016 5087158 ROPOS in water at approximately 01:45 UTC. ROPOS now at 389 meterss  
  2 5 466 155 423896 5086982 ROPOS descending in cage, systems look ok.  
  2 20 756 287 423966 5087087 Having problems and making adjustments with video cables. Color back on main console monitor.  
  2 26 878 207 423960 5087078 Oil reservoir started at 10%, now at 83% and steady while descending in cage.  
  2 47 1268 35 423903 5087058 Synchronizing computer clocks to UTC  
  2 53 1371 29 423949 5086993 Oil reservoir at 79%  
  3 3 1468 154 423981 5086921 Parking sub about 50 m off bottom to wait for P-Code GPS to come back on.  
  3 47 1492 281 423842 5087094 Pcode came back, ship has been maneuvering back into position. Ropos out of cage and going down. ON bottom. sheet flows with flocky coating. no fix now  
  3 53 1524 26 423868 5087084 x=3869, y=7084 good fix. Found elevator  
  3 55 1523 268 424393 5086607 heading to 75 degree spot. Looking for it.  
  3 59 1524 225 424409 5087488 At Mkr-33 site. Fissure in sheets has much shimmering water. Putting out OSMO samplers. Discussing where first.  
  4 1 1523 228 424230 5087962 Putting Osmo sampler in vent site Mkr-33. R491-1
4 2 1523 224 423841 5087087 note that frame grabs appear to have subtle red stripes across them but they are not on the video  
  4 4 1523 228 424108 5087609 Positioning OSMO R491-2
4 20 1522 236 423854 5087066 BioOsmo sampler deployed in hottest known part of Mkr-33 vent  
  4 22 1524 215 424495 5087976 Osmos and Micro traps R491-3
4 23 1524 236 423610 5086988 Osmo and micro traps R491-4
4 29 1524 244 423839 5087050 Repositioning the green copper OSMO sampler at the 80 degree vent next to the other sampler just positioned  
  4 30 1522 235 423851 5087073 Moving Osmo sampler (green copper one) to 80 C spot in crack R491-5
4 31 1523 240 423853 5087101 repositioning green osmo next to the BioOsmo R491-6
4 33 1523 258 423842 5087050 Osmo samplers at fissure Mkr-33 R491-7
4 33 1523 258 423842 5087050 3 Osmosamplers at Mkr-33 R491-8
4 33 1522 226 423856 5087066 another picture of osmo set up R491-9
4 34 1521 227 423875 5087038     R491-11
4 34 1522 220 423856 5087066 3 Osmosamplers at Mkr-33- R491-10
4 34 1521 238 423875 5087038     R491-12
4 35 1521 209 423851 5087097 Mkr-33 view R491-13
4 35 1521 209 423851 5087097 More Osmosamplers at Mkr-33- R491-14
4 37 1524 214 423848 5087102 Osmo analyzer R491-16
4 37 1524 212 423848 5087102 Iron osmo sampler being picked up. R491-15
4 38 1524 213 423849 5087104 Iron baby! Osmo analyzer R491-17
4 38 1523 206 423852 5087092 Picking up Fe osmo sampler to bring back up to surface.  
  4 39 1524 192 423840 5087051 Traps and osmoanalyzer R491-18
4 40 1524 201 423838 5087048 Osmoanalyzer R491-19
4 43 1523 211 424308 5087903 Picked up Fe OsmoAnalyzer #1 for return to elevator (which is only 2 m away) FeOsmoAn_ R491-1
4 46 1520 211 424481 5087352 Osmo sampler into elevator. R491-20
4 48 1521 210 423863 5087061 Fe osmo sampler placed in elevator.  
  4 54 1524 249 424043 5087941 Picked up bacteria trap #40 and took to elevator. Bactrp-40_ R491-2
4 55 1524 251 423851 5087099 Stopped on way to elevator to pick up bacteria trap #43 and took both to elevator. Bactrp-43_ R491-3
4 57 1522 265 423853 5087092 Bacterial traps 40 and 43 put in elevator.  
  5 13 1521 340 423860 5087097 Removing OSMO sampler from elevator.  
  5 16 1521 173 423864 5087074 Last entry was wrong. Just repositioning OSMO to make more room. Now getting other OSMO to put in elevator  
  5 19 1521 166 424412 5087480 Recovery of iron osmotic analyzer 2, putting in elevator FeOsmoAn_ R491-4
5 29 1525 61 423840 5087041 repositioned bacterial traps 42 R491-21
5 31 1523 38 423840 5087046 repositioned #42 bacterial traps  
  5 37 1522 42 424674 5087294 Recovered bacterial traps #41.  
  5 39 1524 214 423840 5087045 Repositioned two bacterial traps 41 and 42 in crack where the temp. is hot and where the OSMO samplers were deployed.  
  5 42 1524 223 423993 5087682     R491-22
5 42 1524 226 424362 5087686 bac traps 42 and 41 in place R491-23
5 46 1524 202 423992 5087679 osmos and bac traps in bed together R491-24
5 50 1524 229 423849 5087098 Position of bacterial traps R491-25
5 50 1523 223 423849 5087098 OK NOW IT'S THE FINAL POSITION OF BACTERIAL TRAPS NEXT TO OSMOS R491-26
5 50 1522 221 423849 5087098 The big view of Mkr-33 R491-27
5 52 1522 180 423852 5087102 Another great grab of Mkr-33 site R491-28
5 53 1524 188 423857 5087092 Going to suck snails. We will take sample 5. Photo
5 56 1524 183 423855 5087090 Limpets and snails close-up. R491-29
6 2 1524 192 423859 5087097 suction sample J1 starting R491-30
6 2 1524 188 423744 5087252 Sampling limpets and snails in J1 SS-j1_bio

_R491-55
6 7 1524 188 423839 5087040 3852 7103 good fix at Sample site.  
  6 19 1524 189 423841 5087042 finished suction of snails.  
  6 21 1525 183 423853 5087105 Heading to N6 at Cloud, 50 m away.  
  6 30 1514 62 423861 5087050 moving the ship.  
  6 31 1521 64 424380 5087671 Traversing to NE to next site over lineated sheet flows, some jumbled sheets.  
  6 35 1524 137 423898 5087114 Over the plume, lots of cloudy water. 3901 7112 good fix. over the vent with worms on edges, many scale worms on rock faces. Continuing to move around. Much collapse, some pillars.  
  6 42 1522 305 423910 5087105 Found Mkr-N6 site  
  6 42 1523 285 423903 5087112     R491-31
6 42 1522 334 423933 5087605 View of Cloud Vent, multiple orifices, Mkr N6 R491-32
6 42 1522 295 423903 5087112 3903 7112 good fix at site N6, vigorous venting in hole, many scale worms. some nice tubeworms.  
  6 43 1526 352 423773 5087274 Edge of N6, tube worms, venting vigorous R491-33
6 45 1526 345 423887 5087122 Going to deploy Marker 21 near N6. Marker will have MTR temp recorder on it. Big fish, much bacterial coating on basalts. x=3901 y=7109 good fix.  
  6 51 1526 357 423903 5087110 MTR probe at MKR N6 R491-34
6 54 1526 355 424287 5087490 MTR deployed at Mkr N6 Cloud. Mkr-21 being deployed R491-35
6 52 1526 0 423901 5087108 3903 710 good fix where Marker 21 is being positioned down the hole. Gas tight taken in whole. very vigorous flow. gtb-6_dfl_R491-6
7 1 1527 0 423902 5087110 Trying to se exactly how big this hole is by scanning it with the red laser things - approximately 5 cm in width.  
  7 4 1527 356 424139 5086948 The 5 cm was at the north side of the hole. Photo-1
7 4 1527 358 424139 5086948 Photo of Cloud Marker N6/21.  
  7 4 1527 0 423754 5087341 The pit at Cloud vent - marker N6 and 21 R491-36
7 6 1527 358 423890 5087118 Watching the particles go by to estimate a flow rate out of the pit at Cloud Marker N6/21.  
  7 8 1527 360 423902 5087109 Looking at the face of the rock right above the rim to get this flux measurement.  
  7 14 1527 312 423892 5087118 We are suctioning at N6 for bacterial mat. SS-1_mat_

R491-7
7 14 1527 310 423901 5087108 Photo of the hole and bacterial mat and worms. Photo-2
7 19 1527 8 423903 5087110 x=3903 y=7110 good ROPOS fix  
  7 20 1527 6 423905 5087111 Suction sample of microbial mat at Cloud vent (N6) R491-37
7 21 1527 7 423902 5087096 We're actually sucking mat near Mkr N6 and the Pit, but not actually in it. The good fix is for where we're sampling from now.  
  7 29 1526 19 423901 5087107 Still suctioning into Bottle 1.  
  7 32 1527 22 423900 5087107 good suction sample at Cloud vent of bacterial mat. R491-39
7 34 1527 22 423903 5087109 Flushing. Finished sampling into Bottle 1.  
  7 34 1527 19 423903 5087109 We're moving to the other side of Cloud now.  
  7 37 1522 9 423898 5087106 Retrieving bacterial traps from Marker N4.  
  7 38 1524 9 423894 5087110 3894 710 good fix at Marker N4  
  7 38 1525 6 423894 5087110 Bacteria trap at N4 R491-41
7 40 1525 234 423898 5087112 Trying to pick up bacterial trap from N4.  
  7 42 1525 233 423897 5087111 Retrieval of bacteria traps at N4 R491-42
7 42 1525 230 423897 5087111 Getting bacterial trap #36 bactrp-36_

R491-8
7 44 1525 229 423897 5087111 Putting bacterial trap #36 in starboard side of BioBox.  
  7 46 1525 236 423898 5087111 Now we're retrieving bacterial trap #37 from Mkr N4.  
  7 48 1525 221 423897 5087111 Putting bacterial trap #37 in starboard side of BioBox bactrp-37_

R491-9
7 51 1525 244 423896 5087111 Putting bacterial trap #39 into starboard BioBox. bactrp-39_

R491-10
7 54 1526 237 423900 5087115 Retrieving and placing bacterial trap #38 into starboard BioBox. bactrp-38_

R491-11
7 57 1526 240 423897 5087111 Going to the elevator!  
  7 58 1526 238 423896 5087110 3897 7110 good fix  
  7 58 1526 238 423896 5087110 3897 7110 good fix  
  7 58 1526 240 423896 5087110 Going to the cage for tether management first.  
  8 7 1520 226 423866 5087085 We found the cage.  
  8 8 1522 239 423858 5087076 x=3863 y=7099 good fix on elevator  
  8 10 1518 179 424092 5087574 We're now at the elevator to put the bacterial traps into the BioBox in the elevator and take the other bioboxes out of the elevator.  
  8 15 1521 47 423860 5087081 Bacterial trap missed the box in the elevator. Still trying.  
  8 28 1522 153 423862 5087095 3862 7095 good fix at elevator as we put the trap in the right box in the elevator this time.  
  8 29 1521 181 423859 5087081 Transferring bacteria trap to elevator R491-43
8 29 1521 181 423859 5087081 The second bacterial trap is now entering the elevator.  
  8 32 1521 171 423860 5087079 The third bacterial trap is now going in the elevator.  
  8 33 1521 176 423858 5087095 3858 7095 good fix at elevator.  
  8 35 1521 183 423863 5087099 Placing the fourth and final bacterial trap into the elevator.  
  8 35 1521 160 423860 5087077 We're having trouble shutting the lid on the box in the elevator with the bacterial traps in it.  
  8 45 1522 3 423857 5087073 We have closed the lid on the box in the elevator.  
  8 45 1519 101 423858 5087074 Now we will try to remove the portable bioboxes from the elevator. Two will go on seafloor, two will be held in each of the arms.  
  8 58 1518 140 423856 5087098 3856 7098 good fix  
  9 3 1525 37 423854 5087081 Picking up two of the portable bioboxes - one in each arm - and carrying them to Nascent Vent.  
  9 9 1526 64 423848 5086872 The two boxes left behind are close to the anchor of the elevator.  
  9 10 1526 59 423852 5087073 Now we're going back to the cage to check the tether and such.  
  9 17 1494 174 423935 5087512 We've found the cage, everything's okay, so we're returning to the bottom to head to Nascent.  
  9 18 1522 0 423641 5087320 Moving the ship to get ready to move to Nascent.  
  9 20 1522 6 423641 5087320 Going north to Nascent vent.  
  9 26 1519 3 423873 5087139 On transit to Nascent, seeing lots of diffuse venting with bacterial mat. No sign of animal life.  
  9 27 1518 6 423873 5087146 Now we see some tube worms.  
  9 27 1520 4 423873 5087153 Very pretty diffuse flow. A little pit with mat and worms and snails.  
  9 28 1521 1 423871 5087156 3871 7156 good fix We're still heading north. Saw the new worm, extensive venting.  
  9 29 1520 4 423869 5087164 Now we're seeing pillow lavas with that rusty colored sediment/bacterial stuff on it.  
  9 30 1521 2 423858 5087179 More rusty colored stuff on the pillow lavas. Some bacterial mat.  
  9 31 1520 5 423863 5087180 3864 7180. good fix en route to Nascent.  
  9 32 1520 356 423864 5087191 Funny pitted looking lavas - poxey area. They look like grazing spots except that they're single little circles with no animals or fecal trails.  
  9 34 1521 4 423870 5087217 Trying to figure out what these little patches are - fecal patches?  
  9 37 1518 356 423867 5087262 3867 7263 good fix en route to Nascent - 140 m away from Nascent.  
  9 41 1520 10 423886 5087318 Pillow lavas with orangey stuff- no venting or animals visible.  
  9 42 1520 7 423886 5087337 3886 3737 About 60 m from Nascent Vent.  
  9 44 1520 73 423882 5087386 More poxey sort of areas on the pillow lavas  
  9 44 1521 82 423909 5087757 Rattail.  
  9 44 1521 78 423909 5087757 Rattail on the way to Nascent. R491-45
9 45 1520 99 424259 5087166 We are very close, or almost at, Nascent Vent. Looking for the MTR.  
  9 46 1520 97 424264 5087173 Bag creatures, snow-looking stuff.  
  9 48 1518 164 423908 5087390 3908 7391  
  9 49 1520 173 423913 5087390 We have located the MTR.  
  9 49 1520 171 423910 5087380 3910 7380 good fix at MTR at Nascent Vent.  
  9 50 1521 119 423909 5087376 The bag creatures are super thick! We see snails, limpets, tube worms, etc.  
  9 51 1521 127 423911 5087380 Nascent Vent with old MTR in it. R491-46
9 52 1521 122 423911 5087380 Putting down the two portable bioboxes to free up ROPOS's arms.  
  9 53 1521 132 423914 5087375 The BioBox has slipped and fallen into the vent hole!  
  9 56 1521 113 423904 5087389 Moving the BioBox out of the hole with the MTR.  
  9 57 1521 135 423904 5087389 Dropping the other BioBox in the 7 function arm.  
  10 2 1521 126 423908 5087368 Opening one of the bioboxes to get it ready for sampling- this BioBox has the rubber stopper popped out and floating about the box.  
  10 3 1521 126 423908 5087368 Portable BioBox before it was filled with worms and such. R491-47
10 4 1521 126 423910 5087371 Cancelling opening the box because we seem to be kicking things up to much. Now attempting to get a port side gas tight bottle from Nascent Vent.  
  10 4 1521 127 423910 5087371 3910 7381 good fix at Nascent. Positioning for this gas tight bottle. gtb-7_dfl_R491-1
10 8 1521 120 424284 5086718 Triggering the port side gas tight right near the MTR at Nascent Vent.  
  10 10 1521 122 423909 5087369 Preparing to suction into Jar J3 over the tube worm bush. Flushing the ja r- lots of bag creatures in the flush jar.  
  10 12 1521 124 423886 5087346 Beginning to suction right over the tube worms in the same vent as the MTR. SS-j3_bio_

R491-13
10 13 1521 121 423886 5087346 We are suctioning slowly in order to only get little stuff - not the actual worms.  
  10 15 1521 125 423900 5087349 Photo  
  10 18 1521 128 424287 5086715 Photo  
  10 19 1521 123 423911 5087372 3912 7372  
  10 26 1521 123 423914 5087379 3914 7380 good fix where we're suctioning.  
  10 27 1521 124 423910 5087370 Suction over tube worm bush at Nascent vent. R491-48
10 31 1521 120 423908 5087370 BETA tape was 60 minutes, but it went to 84 minutes, so 24 minutes of the BETA tape are gone. Oops.  
  10 35 1521 126 423908 5087376 Another view of the tube worm bush at Nascent vent. R491-49
10 46 1521 121 423965 5087790 Stopping suction sample after 3 1min 25 sec.  
  10 48 1521 128 423907 5087370 37907 7370 good fix  
  10 48 1521 128 423911 5087381 Begin sampling sJ4_bio_491-14 SS-j4_bio_

R491-14
10 53 1521 126 423911 5087381 Suction of gastropods near MTR at Nascent vent. R491-51
10 54 1521 126 423910 5087378 Still suctioning worms and gastropods at the MTR site at Nascent vent.  
  10 58 1521 125 423910 5087379 Testing the Betacam to make sure error code was ok. Betacam still works.  
  11 0 1521 125 423677 5087278 Stopping sample 491-14  
  11 4 1521 121 423913 5087384 Grabbing external BioBox-box and moving it away from vent somewhat.  
  11 6 1521 121 424287 5086716 Attempting to open the portable BioBox-box. Pulling on bungi cord. Pulling top open.  
  11 9 1521 123 423956 5087788 Lid is open.  
  11 10 1520 122 423770 5087694 Removing MTR4180 from vent and transferring to BioBox-box. MTR-4180_R491
11 11 1520 122 423901 5087384 Transfer complete.  
  11 12 1521 126 423912 5087382 Attempting to grab tube worms.  
  11 18 1520 127 423910 5087379 Portable BioBox box tipped over and was repositioned. MTR is still inside.  
  11 20 1520 124 423910 5087379 Attempting to reopen the BioBox-box lid which closed on repositioning.  
  11 22 1520 123 423912 5087381 Grabbing the BioBox-box with the 5 function arm. Attempting to open the lid once more.  
  11 24 1520 122 423897 5087362 Still trying to open portable BioBox-box. Holding top open with 7 function and grabbing handle with 5 function. Box is open but pointed the wrong direction.  
  11 26 1520 124 424912 5087076 Attempting to grab tube worm sample w/ 7 function.  
  11 29 1520 116 423897 5087362 Worms grabbed. Bio_R491-16
11 29 1520 121 423897 5087362 Worms being transferred to portable BioBox-box. Held by 5 function arm. Transfer complete.  
  11 32 1521 119 423897 5087362 Worm Grab-Nascent R491-52
11 32 1520 115 423897 5087362 Attempting to collect second clump of worms at same site.  
  11 32 1520 121 424322 5088029 Nav is currently bad.  
  11 36 1520 119 423897 5087362 Still attempting to collect second clump of worms.  
  11 37 1520 119 423897 5087362 Restarting Kims VCR tape which was stopped for an unknown amount of time.  
  11 43 1520 118 423893 5087358     R491-53
11 43 1520 115 423907 5087370 Second clump has been picked up by the arm and transferred to the portable BioBox-box.  
  11 44 1520 121 424642 5086950 VCR tapes have been changed.  
  11 52 1520 208 424467 5087140 Collecting a third clump at a nearby site after repositioning. This is a larger clump.  
  11 54 1520 206 423911 5087381 Highlights on.  
  11 54 1520 208 423911 5087381 Worm Grab-Nascent R491-54
11 54 1520 209 423911 5087381 still photo of worms. Photo
11 55 1520 205 423916 5087389 Collecting 4th grab of tube worms.  
  11 56 1520 205 423911 5087372 Transferring a large clump to portable BioBox-box. Transfer is complete.  
  11 59 1520 204 423911 5087372 Transfer complete.  
  12 0 1520 209 424032 5087183 Attempting to grab handle with 7 function.  
  12 4 1520 205 423909 5087365 Portable BioBox-box transferred between 5 and 7 function arms. Now attempting to close the lid with the 5 function arm.  
  12 7 1520 208 424029 5087194 Closing the lid on the BioBox-box.  
  12 7 1520 205 424940 5086954 Tube worm samples and MTR in the portable BioBox-box. R491-55
12 8 1520 208 423910 5087392 Transferring the BioBox-box from the 7 function back to the 5 function arm. Attempting to reattach the bungi w/ the 7 function arm. Bio-box is tipped 90 degrees.  
  12 12 1519 207 423910 5087370 Grabbing the handle with the 7 function arm and returning the box to an upright position. The 5 function has let go of the handle. Setting the box down on the bottom.  
  12 15 1519 210 424018 5087016 Positioning BioBox-box on the bottom.  
  12 17 1520 220 423657 5086835 Nav is still bad.  
  12 17 1520 229 425112 5087232 Holding the bio-box lid closed with the 5 function arm while using the 7 function to attempt to close the bungi latch. Latching complete but needs a small nudge to position the bungi completely on the latch. Bungi is now completely secure.  
  12 23 1519 231 423910 5087385 Picking up the BioBox-box with the 5 function arm. Repositioning BioBox-box.  
  12 25 1520 231 423910 5087383 Checking gauges.  
  12 25 1520 232 423912 5087372 Opening the port side BioBox-box. Picking up MTR w/o black tape (# 3175m). Positioning for deployment.  
  12 31 1519 90 423821 5087742 Deploying MTR.  
  12 32 1519 59 423892 5087353 Positioning to pick up 2nd portable BioBox-box with 7 function arm. Box has been grabbed. Lifting and rotating box.  
  12 35 1519 58 423898 5087375 Heading north to Mkr-N41.  
  12 35 1519 49 423902 5087384 Leaving Nascent transiting to Mkr-N41.  
  12 37 1518 6 423869 5087310 Nav is bad.  
  12 41 1520 355 423905 5087427 Nav is showing us NW about 15 meters.  
  12 42 1518 70 423911 5087422 good nav fix.  
  12 42 1518 198 423910 5087420 Arriving at Mkr-N41.  
  12 46 1520 103 424335 5086890 Bio-box on bottom.  
  12 46 1520 101 423912 5087405 Pick up BioBox-box in 7 function arm and reposition nearer the marker.  
  12 47 1520 107 423905 5087397 Bio-box slide down a pillow lava into a small depression. Attempting to open and reposition. No good nav. Positioning box. Lid is open.  
  12 50 1520 104 423904 5087406 good fix.  
  12 50 1520 103 423906 5087407 Grabbing MTR 4126. Into box. MTR-4126_dfl _R491-17
12 52 1520 101 423903 5087402 Beginning to collect worm sample at Mkr-N41.  
  12 53 1520 92 423903 5087403 Large clump of worms collected and put into box. Bio_R491-18
12 54 1520 95 423904 5087408 Attempting to grab second clump of worms. Worms grabbed and put into the portable BioBox-box.  
  12 55 1520 90 423904 5087409 good fix.  
  12 55 1520 91 423904 5087409 2nd worm clump is in the box.  
  12 56 1520 89 423906 5087411 good fix. Attempting to collect 3rd clump of worms at the same area.  
  13 1 1520 90 423820 5087757 Third clump collected and transferred to the portable BioBox-box.  
  13 2 1520 90 423904 5087409 good fix.  
  13 3 1520 83 423899 5087409 Finished collecting sample. Will deploy the MTR-3041 in the same hole as the other one.  
  13 4 1519 77 424085 5086794 MTR deployed and now attempting to close the lid on the portable BioBox-box.  
  13 10 1520 173 424289 5086722 Still attempting to close the BioBox-box.  
  13 15 1519 217 423907 5087407 good Fix. Still trying to close the lid.  
  13 18 1520 23 423760 5087605 Picking up the box and repossessing with the 7 function arm.  
  13 20 1520 23 423742 5087073 Repositioning box, still trying to close lid.  
  13 22 1520 22 423906 5087405 Positioning 1st BioBox-box on top of the second to secure the lid. Using the 7 function to close the lid.  
  13 25 1519 23 423904 5087402 Lid closed on second BioBox-box.  
  13 25 1519 22 423904 5087402 Checking MTR position.  
  13 25 1519 16 423991 5086488 MTR at N-41 R491-56
13 28 1519 15 423907 5087407 Still photo. good fix. Photo
13 31 1518 347 423906 5087405 Leaving Mkr-N41 transiting to oxide site 15m to the N.  
  13 34 1519 10 423904 5087419 good fix.  
  13 34 1519 14 423904 5087419 Positioning suction sampler to take oxide sample.  
  13 37 1519 353 423899 5087420 Setting down BioBox-box in 5 function arm in order to grab the suction sampler handle. Grab complete.  
  13 39 1519 1 423898 5087416 Flushing into J4 getting ready to sample FeO into J2.  
  13 40 1519 359 423898 5087416 Steve's tape is running.  
  13 42 1519 321 423899 5087414 good fix.  
  13 43 1519 317 423900 5087413 Begin sampling FeO SS-j2_FeO
13 43 1519 321 423176 5087152 Still sampling FeO, s .  
  13 44 1519 328 423898 5087412 Photo of FeO Photo
13 47 1519 285 423903 5087420 Repositioning to find more oxides.  
  13 48 1519 294 423999 5087715 VCR tapes have been changed.  
  13 49 1519 312 423903 5087418 good fix.  
  13 49 1519 314 423904 5087415 Start sampling more oxides into J2. Mat appears to be very deep at the sampling spot.  
  13 51 1519 320 424365 5088172 Possible precursor to red cherts. Need Silicon as well.  
  13 52 1519 290 423904 5087418 Photo of white mat. Photo
13 53 1519 289 424878 5087155 Sampled some of the white mat as well.  
  13 58 1519 288 424115 5087632 Still attempting to try to clear the clogged suction sampler.  
  13 59 1519 292 424519 5087104 Switch to jar 4 and continuing to pump. SS-j4_FeO _R491-19b
14 0 1519 298 423901 5087397 Finished sampling FeO sample.  
  14 1 1519 295 423531 5087297 Reposition to pick up the BioBox-box.  
  14 2 1518 305 423531 5087297 photo Photo
14 2 1518 309 423531 5087297     Photo
14 3 1519 296 423902 5087419 Releasing s hose with the 5 function arm. Picking up the BioBox-box.  
  14 4 1519 294 423884 5087775 Picking up BioBox-box.  
  14 4 1519 291 423899 5087415 Returning to cage. Will then reposition ship.  
  14 5 1519 302 423899 5087415 photo of FeO area. Photo
14 6 1518 179 423901 5087420 photo Photo
14 6 1517 188 423901 5087420     Photo
14 6 1517 201 423901 5087420     Photo
14 6 1516 223 423901 5087420     Photo
14 8 1492 24 423901 5087420 Heading back to the bottom.  
  14 11 1519 359 423889 5087344 ROPOS is ready at the cage. Ship will move N about 81 m.  
  14 12 1518 357 423889 5087344 Ship is starting to move.  
  14 13 1518 356 423897 5087354 Transit from N41 North to old flow site. Approximately 81 m.  
  14 15 1518 356 424614 5086896 Photos of mysterious black circles on lobate lavas - they look like grazing 2 photos
14 17 1518 357 423884 5087384 More photos of the 'pox' marks. Photo
14 19 1518 1 423891 5087397 'Pox' marks photo
14 22 1519 5 423890 5087419 photo of oxide Photo
14 24 1518 42 423894 5087444 good fix  
  14 25 1517 27 423869 5087382 Contact with old lava.  
  14 26 1518 41 423868 5087380 Crabs and clams.  
  14 27 1518 30 423868 5087380 crabs and worms. Photo
14 30 1519 35 423835 5087342 No good fixes photo of BioBox-box Photo
14 32 1520 35 423834 5087362 old worms R491-57
14 34 1520 32 423847 5087359 photo of old worm site to be sampled Photo
14 36 1519 34 423868 5087463 sample of old tube worms. Bio_R491-20
14 38 1520 36 423840 5087337 Still collecting old tube worms sample. Sample placed in port BioBox-box on sub.  
  14 42 1519 38 423907 5087448 Putting second clump of old worms into port BioBox-box on sub.  
  14 44 1519 35 423855 5087404 Still sampling for old tube worms.  
  14 53 1519 99 423835 5087390 Finishing stuffing the 'Old Flow' grab into the port BioBox - doing a little BioBox management.  
  15 0 1519 101 423778 5087225 Worms in the BioBox! On to take a rock  
  15 5 1519 33 423839 5087406 Going in to sample a rock for the rock guys.  
  15 13 1519 83 423949 5087536 Putting the honking rock into the port BioBox. R491-58
15 16 1519 83 424134 5087869 good view of the spider crab.  
  15 19 1519 85 423877 5087474 Hollow pillow(or lobate )where rock sample taken near old flow vent in association with the tube worm grab R491-59
15 20 1519 87 424110 5087884 Close-up view of hollow pillow (or lobate) near tube worm grab R491-60
15 21 1519 87 423700 5087141 Another shot of the LOBATE! flow that was sampled above. Cool crab and Nascent sample (in box) in view. R491-61
15 23 1519 86 423814 5087346 Crust of the lobate flows is about 10 cm.  
  15 25 1517 104 423834 5087378 Completed sampling at 'Old Flow'. Now preparing to transit back to the elevator to drop of bioboxes.  
  15 45 1518 222 423954 5087486 Looking for a basalt sample of new flow southwest of Nascent vent about 10 m.  
  15 48 1516 142 423955 5087254 Lobate flows and some collapsed features. Bacterial mats in cracks between lobes. Beautiful features.  
  15 52 1515 185 423906 5087295 Lava buttress.  
  15 54 1508 170 423881 5087282 Still waiting for the ship to stop in order to take a rock sample.  
  15 56 1518 184 423930 5087301 Lava pillar and collapsed lobates.  
  15 57 1518 188 423886 5087184 Jumbled sheets on top of collapsed structure. Field of Pillars staring Mike Perfit and Kevin Costner.  
  16 1 1517 356 424451 5086748 Lava pillar and arch.  
  16 1 1518 360 424451 5086748 Lava pillar connected to arch Unknown fix/near Mkr-33 R491-64
16 7 1518 322 424152 5087643 collection of new lava flow near Mkr-33(10m) R491-65
16 10 1518 317 424647 5087044 Rock sample near Mkr-33 (10m) R491-67
16 7 1518 330 424027 5087484 Going in for a rock sample of new flow on a roof structure. Putting rock in starboard side of BioBox Rck_R491-22
16 10 1518 317 423903 5087223 x=42391, y=508728 - lat/long estimation for the rock sample (R491-22).  
  16 12 1518 316 423898 5087246 Better lat/long for the rock sample (R491-22): 3902, 7224.  
  16 14 1518 320 423936 5087307 Ship heading back to elevator, rock sampling finished.  
  16 32 1492 266 423864 5087170 Ship moved. Moving back to the elevator to drop of the two portable bioboxes.  
  16 46 1523 62 423866 5087100 At the elevator. Beginning to position the two portable bioboxes into the elevator.  
  16 50 1519 43 423858 5087087 Tubeworm grab from N41 in portable BioBox is being transferred to the elevator.  
  16 53 1519 131 423828 5087145 N41 tube worm sample going into elevator. R491-68
16 59 1520 286 423846 5087055 Nascent BioBox deposited in elevator. R491-69
17 0 1519 24 423844 5087054 TW sample of Nascent (R491-16) in left side of elevator.  
  17 2 1519 91 423858 5087092 Closing the lid on the BioBox compartment of the elevator.  
  17 6 1521 332 424401 5087492 Going to pick up another portable BioBox (on the seaflor at the base of the elevator) to take north to Milky area for sample of 'Old Worms'. First we are heading to Cloud for video/still camera mosaicing work. Still at the elevator doing rope managment.  
  17 10 1516 246 423863 5087092 Save for ROPOS guys. Tangled launch line with the anchor. Top of the bridle. R491-70
17 10 1523 148 423551 5087340 The elevator launch line to tangled around the ropes and under the anchor. Working on untangling it.  
  17 19 1521 114 424414 5086752 Removed the launch line from under the anchor. Heading to Cloud vent (N4).  
  17 30 1524 317 423845 5087046 Just finished repositioning tubeworms in port side of BioBox. On our way to Cloud.  
  17 43 1522 92 423885 5087118 Waiting for the ship to reposition so we can transit to Cloud.  
  17 45 1519 91 423889 5087115 Collapsed area just before we reach Cloud - a ridge with a bit of venting, some gastropods and a dense aggregation of the unknown polynoid. Photo
17 47 1522 93 423886 5087066 We are at Mk-N6 (Cloud). Stirred up a lot of floc while landing ROPOS. Waiting for the floc to clear before we start taking pictures and survey the area. Kim wants video and still photo images to mosaic Cloud vent area. good fix for N6 at 3900, 7115.  
  17 51 1523 268 423901 5087113 Trying to go to Mkr-N4 to begin photo imagery work - to the west.  
  17 52 1523 306 423896 5087114 At Mkr-N4, good fix.  
  17 55 1522 71 423897 5087118 Stopped to try and get a bunch of good fixes to locate precisely where we are.  
  18 1 1522 68 423879 5087069 Starting at N4 we are going to survey all of Cloud with video, 35 mm still camera (mounted vertically) and imagenex from a depth of 1521m. We are going to take overlapping photos and since there is a 5 sec. lag between each photo, the pace will be slow.  
  18 6 1522 78 423893 5087117 Lift off! Camera survey starting. Heading east. 3 photos
18 8 1523 93 423898 5087117 Aborting survey because we stirred up to much debris in the water column. Starting again.  
  18 11 1522 86 423906 5087135 Back at Mkr N4, positioning to start survey again.  
  18 20 1522 105 423775 5086584 Attempt #2 - starting survey from Mkr-N4 at a heading of 105 degrees for approximately 6.5 m to Mkr-N6.  
  18 22 1522 104 423880 5087070 Photo survey. Imagenex head is about 2.5-3 m of the bottom. 5 photos
18 24 1522 112 423882 5087064 Still transiting to mkr N6 taking pictures. Imagenex now at 4 m. 3 photos
18 25 1521 101 423859 5087018 Imagenex up to 5 m - need to come back down.  
  18 26 1521 120 423859 5087018 Imagenex still at 5 meters. Now down to 2.5 m on right and 5 m on left. Turning ROPOS around, heading back towards N4, heading 285.  
  18 27 1522 277 423900 5087097 Transect from N6 back to N4. Heading staying roughly between 285-295. 12 photos
18 30 1520 294 423952 5087220 Still heading west. 2 photos
18 30 1520 280 423860 5086972 Worm Pillar. Near N4 & N6 R491-71
18 31 1518 323 423889 5087105 Moving 2 meters to the north, turning around to run a reciprocal course.  
  18 32 1518 126 423890 5087110 See N4, set down briefly. Heading 105 and making a transect back towards N6. 5 photos
18 34 1520 102 423905 5087118 Got out of the venting area. We are going to fly back to N6, go to the eastern edge of the field and then will hop 2 m north, then transect west again.  
  18 38 1520 275 423894 5087117 Trying to find mkr N6.  
  18 39 1524 248 423904 5087109 good fix. Found N6. Hopping 2 m north.  
  18 41 1523 282 423902 5087111 Heading 285 back towards N4. 9 photos
18 42 1520 294 423896 5087114 Swinging around, back to N6 (mkr 21). Hopped south and are going to do another east-west transect (N6 is just slightly to the northwest of where we are starting this transect).  
  18 47 1525 283 423902 5087108 Beginning of the last line of transect. good fix  
  18 48 1523 287 423948 5087533 Last transect heading west at 285. Crossing over worm pillar. Survey work 13 photos
19 3 1520 271 423742 5086943 worm moves while scientists wait R491-72
19 6 1520 272 423511 5086604 worm eats bag lunch R491-73
19 10 1510 271 424190 5087650 Moving ship to west.  
  19 17 1462 188 424422 5087902 At cage. Preparing to go to Old Worm Site. Too rough to recover elevator. Will try later in the day.  
  19 56 1502 357 423379 5087115 Start of Imagenex line W5. Starting at middle of line west of Mkr-33, proceeding north.  
  22 47 1506 176 422412 5089376 22:16 finish north end of Imagenex line W5. 22:30 start north end of Imagenex line W6 heading south to latitude of the elevator for release  
  1 19 1499 186 423306 5087087 No elevator recovery as previously planned. Moving ship towards

Mkr-N4.

  
  4 24 1530 93 423672 5088415 ON bottom again, very collapsed area, with large blocks of lava strewn around chaotically over rubble. A bit less floc material between flows here.  
  4 27 1531 74 423662 5088434 further N, there was more continuous ropy sheets. Turning E it is more scrambled with collapse and rubble. Many of the walls seem to have fallen over or collapsed onto the floor.  
  4 31 1529 59 423676 5088439 Typical view of chaotic terrain here. R491-74
4 31 1528 352 423675 5088443 good fix 3671 8442  
  4 33 1530 322 423671 5088442 more to north and west hummocky terrain in sheet flows.  
  4 35 1531 41 423657 5088465 featureless sheet flow in hummocky terrain, lots of floc along cracks R491-75
4 38 1527 149 423667 5088456 good fixes around this time. On boundary between sheets and collapse  
  4 41 1528 122 423668 5088440 Into areas of collapse, good fixes. Very jumbled flows. spider crab.  
  4 43 1528 1 423592 5088310 Folded sheets over a fairly large area. Giving up heading to old worms.  
  4 51 1526 91 423711 5088440 On bottom again to E looking for old worms. just near contact. Old lavas are more rubble and covered in sed and sponges  
  4 53 1527 134 423725 5088442 Older lavas R491-76
4 53 1526 132 423733 5088430 good fix, lavas are less coherent here, no floc, more sed and sponges. Some lobates as we go SE.  
  4 57 1524 86 423744 5088369 rat tail in old lobates  
  4 59 1525 89 423746 5088406 old lobates R491-77
5 4 1524 89 423758 5088411 Mostly lobates with some large collapse in lobates. Not much relief. some folded sheets.  
  5 6 1524 96 423768 5088408 found site with some tube worms, a little floc along lavas. good fixes.  
  5 7 1523 149 423785 5088410 old worm site R491-78
5 8 1526 130 423784 5088418 stopped to pick up worms and small rock. Little vent fish. Clams at base of wall in sed.  
  5 10 1526 137 423788 5088412 putting box down 3787 8414 good fix for bio grab  
  5 11 1526 147 423786 5088415 grabbing worms R491-79
5 13 1526 129 423784 5088419 Going in handheld BioBox. Sample of tubeworm grab. Bio_R491-23
5 16 1526 130 423786 5088417 OOPS tube worms went into stb. BioBox.  
  5 22 1526 142 423786 5088417 Opening handheld BioBox now for sampling.  
  5 26 1526 141 423788 5088410 second sample at old worm site. R491-80
5 26 1526 131 423785 5088421 sample was a tube worm grab at old worm site, put in handheld BioBox. Bio_R491-24
5 39 1526 90 423785 5088417 sampling the sheetflow substrate from the same locality as the tube worms. Fairly high sed cover here. very thin brittle glass hard to recover with arm. Rck_R491-25
5 44 1526 71 423784 5088419 sampling rock sheet flow R491-25 R491-81
5 45 1526 75 423784 5088417 two small pieces of the glass top of sheet flow are in with the tube worms.  
  6 9 1526 119 423787 5088416 Picked up another large piece of old flow but BioBox fell over.  
  6 32 1526 120 424627 5088470 still at same spot, having trouble closing lid on BioBox box. There is a bent hinge keeping it open.  
  7 6 1527 101 423788 5088416 finally got the lid closed. Shrimp here too.  
  7 2 1527 105 423786 5088418 Latched - finally. R491-82
7 9 1527 102 423002 5086798 Heading 31 to Whiteout. Whiteout is 160 km north of Old Worms.  
  7 17 1527 116 423786 5088422 Picking up the portable BioBox with the 7-function arm. Heading to Whiteout.  
  7 22 1528 309 423724 5088450 Ship is repositioning towards Whiteout.  
  7 29 1528 312 423695 5088464 good fix.  
  7 38 1526 1 423657 5088492 3657 8492 good fix  
  7 42 1527 2 423533 5088229 Still looking for Whiteout Vent  
  7 57 1528 73 423660 5088542 We're at Whiteout - which Maia says is equal to Magnesia from last year.  
  8 2 1532 9 423663 5088542 Okay we are at Whiteout Vent. We can see the lava bridge.  
  8 4 1532 18 423663 5088539 Flushing into bottle #4  
  8 6 1532 16 423663 5088541 3662 8541 good fix at Whiteout/Magnesia Vent  
  8 7 1532 15 423642 5088605 good fix 3661, 8548 at Magnesia/Whiteout sitting right in front of where we sampled  
  8 10 1532 18 423051 5089138 Preparing to sample white bacterial mat/sulfur into suction bottle #2. SS-2_mat_

R491-26
8 14 1531 8 423668 5088554 We are suctioning the white stuff/orange stuff right near the vent.  
  8 22 1532 58 423668 5088557 Still trying to suction at Whiteout/Magnesia  
  8 25 1532 55 423668 5088558 Suction sample of bacterial mat at Whiteout/Magnesia R491-83
8 26 1532 57 423668 5088561 Still suctioning Bottle #2.  
  8 30 1532 56 423666 5088555 Moving to bottle #3 to fill it with the same sort of mat/orange stuff.  
  8 31 1532 58 423663 5088546 Beginning to suction Bottle #3 Sample R491-27 SS-3_mat_R491-
8 35 1532 58 423660 5088542 Still suctioning into Bottle #3.  
  8 37 1532 57 423671 5088549 Done suctioning into Bottle #3. Flushing and moving on.  
  8 40 1532 56 423667 5088557 We're going to suction oxide at 10 m south of here.  
  8 46 1527 185 423655 5088543 Steve is waxing poetic about oxides.  
  8 46 1527 201 423642 5088551 We are still heading south to look for Steve's oxides.  
  8 47 1527 245 423637 5088550 These are pretty bad fixes.  
  8 49 1533 157 423647 5088543 Beautiful curtain drape feature of the lavas.  
  8 51 1526 28 423648 5088547 Going to do some tether management.  
  8 54 1493 155 423660 5088525 Slight electrical fault - still looking for the tether.  
  8 57 1490 245 423659 5088522 We can see the cage now.  
  8 57 1490 197 423659 5088522 Heading back down to the bottom to go to Oxide.  
  8 59 1527 174 423662 5088519 Collapsed lava lake with pillars.  
  9 0 1529 176 423654 5088533 Decent ROPOS fix.  
  9 1 1528 178 423660 5088548 Proceeding south to Oxide.  
  9 4 1529 177 423662 5088505 Relatively good fixes.  
  9 7 1534 178 423686 5088443 We se an ophiuroid amidst the oxide stuff.  
  9 7 1534 195 423678 5088470 Oxide site R491-84
9 8 1534 186 423678 5088470 Sitting on some sheet flow right near the fluffy iron hydroxide orange stuff along fractures of the lava surface. Very thin glassy surface - it would break up very easily according to Steve. More little brittle stars.  
  9 9 1534 184 423677 5088470 We are considering ourselves at Oxide.  
  9 10 1533 169 423676 5088470 We are now looking for a place with shimmering water in order to do metal analysis on the hydroxy stuff and the water.  
  9 17 1533 190 423667 5088460 iron oxide coating basalt mound  
  9 17 1532 176 423667 5088460 small mound on covered with FeO R491-85
9 19 1533 153 423680 5088459 FeO sampling site R491-86
9 20 1533 158 423680 5088459 sampling iron oxide in jar 4 - contaminated sample since stuff from other flushes in the jar SS-4_FeO_

R491-28
9 22 1533 173 423679 5088458 Suction of FeO into flushing bottle R491-87
9 22 1533 170 423679 5088458 3679.1 8458 - OK fix  
  9 24 1533 173 423687 5088432 Taking a look at Jar #4 to see what we got.  
  9 25 1534 153 423713 5088570 Going to suction more oxides.  
  9 26 1531 178 423666 5088465 x=3666 y=8465 good fix.  
  9 29 1534 65 423022 5089140 Starting to suction again into Bottle #4.  
  9 31 1534 64 423677 5088469 3677 8470 Okay fix  
  9 32 1534 89 423671 5088461 3671 8461 good fix where we're trying to sit down and sample from.  
  9 38 1534 129 423673 5088460 Still trying to suction the oxide stuff.  
  9 48 1535 132 423667 5088444 We're trying to grab the suction hose.  
  9 50 1535 134 423063 5089090 Still sampling. Checking out the wind velocity and gusts.  
  9 57 1535 131 423055 5089095 Finishing up this suction of the oxide stuff.  
  10 6 1490 184 423644 5088509 moving ship to west from Oxide (near Milky) to rejoin Imagenex line W4. We will do the northern end of W4 (going north), then move west and do line W7 (going south).  
  10 28 1506 4 423429 5088546 Start of Imagenex line W4 (northern end). Ship heading north.  
  11 11 1506 270 423428 5089203 End of Imagenex line W4 (northern end). Moving ship west to northern end of line W7.  
  11 27 1506 179 423234 5089205 Start of Imagenex line W7 (northern end). Ship going south.  
  14 45 1500 88 423247 5085989 End of line W7 (south end). Ship moving to south end of Imagenex line W6.  
  15 5 1500 358 423311 5086038 Start Imagenex line W6 at 15:0 (at south end going north).  
  16 22 1501 6 423305 5087098 End line W6 (south). Ship moving 60 m east to line W5 and will drive south.  
  16 33 1498 189 423380 5087045 Start Imagenex line W5 (south end) ~16:27. Ship will be moving south along line.  
  17 54 1498 191 423364 5086010 End of Imagenex line W5 (south end). End of dive (due to ground fault in gauge).  
  18 9 1475 188 423054 5085770 ROV in the cage and coming up.  
      Dive Summary: ROPOS set a new record of 41 hrs 34 min total wet time, 38.5 hrs on bottom. Dive was terminated by choice (science done, ground fault pending).  
      Activities at Mkr-33, Cloud Vent (Mkr N6/21), Nascent Vent, Mkr-N41, Old Worm Site, Whiteout/Magnesia. Video/photo/Imagenex survey in area of Mkr-N4/Mkr-N6.  
      Deployments: BioOsmo at Mkr-33, MTR at Cloud, MTR at Nascent, MTR at Mkr-N41. Recoveries: FeOsmo and bactraps at Mkr-33 taken to elevator, Bactraps at Cloud taken to elevator, MTR's at Nascent and Mkr-N41 taken to elevator.  
      Sampling: Limpets and snails at Mkr-33, gastight at Cloud, Bacterial mat at Cloud, gastight at Nascent, suction sample over tubeworm bush, suction sample of bio at Nascent, tube worm grabs at Nascent  
      Basalt sample (pillow crust) at Old Worms, basalt sample (sheet surface) near Mkr-33. Imagenex line north to area of Whiteout/Magnesia. Suction sample at Oxide area, then on with long Imagenex survey on western edge of '98 flow.