Dive R495  
      Dive Plan: 1) Fluid sampling of southern caldera/upper South Rift Zone vents - Mkr-108, Mkr-113, Castle, Joystick, Coquilles, Bag City. 2) Suction sampling: Mkr-113 Marcus/Moyer, Bag City Moyer/Juniper, Diatom mat on new lava - Tunnicliffe.  
      3) Recover and deploy MTR's at Mkr-113 and Bag City. 4) Sulfide sampling at Castle. 5) Finish Imagenex survey, geology traverse south.  
      ROPOS Configuration: Hot Fluid Sampler, Suction sampler (j1 - j4 and 1 - 4), Niskin, Imagenex, cameras and rock purse  
      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
3 39 99 290 422709 5083710 ROPOS in water at 3:30, Julian Day 186.  
4 52 1478 328 423814 5087055 Nearing bottom, water is murky.  
4 56 1519 18 424638 5087317 On the bottom, lineated sheets and ropy sheets. old flows  
5 0 1521 97 423812 5087127 Mkr-33 in view.  
5 2 1522 241 423845 5087103 AT vent site. Lots of growth on the Osmo samplers already.  
5 6 1523 191 423841 5087040 Mkr-33 site with gear R495-3
5 7 1523 202 423841 5087040 Mkr-33 vent site, deploying OsmoSampler Photo-1
5 13 1523 187 423824 5087152 osmoanalyzer Fe-analyzer Deployed at Mkr-33 R495-4
5 18 1523 193 423836 5087124 placement of osmo R495-5
5 21 1523 198 423821 5087152 Placement continued - osmo R495-6
5 21 1523 198 423821 5087152 Finishing positioning Osmo sampler just to right of bacteria traps under the lip of the sheet flow, in the concentrated fluid flow.  
5 26 1523 187 423845 5087108 Placement continued R495-7
5 31 1523 185 423847 5087107 final osmo placement R495-8
5 27 1523 187 424648 5087324 Going to take a temp measurement with the fluid sampler tip. Temps. Max 15 C. Photo 2 of position of deployed Osmo. in vent at Mkr-33. Photo-2
5 32 1523 185 423870 5087044 Making a lateral video survey of area around Mkr-33. Highlights being taken to.  
5 33 1523 179 423845 5087109   R495-9
5 33 1523 178 423845 5087109   R49510
5 34 1523 180 423845 5087109 Picture of fracture at Mkr-33 with the many interesting pieces of scientific equipment. Photo-3, 4
5 36 1523 184 424645 5087322   R495-12
5 37 1523 202 423846 5087103   R495-13
5 36 1523 178 424645 5087322 Photos of vent facing S. photo-6,7, 8
5 37 1522 220 423856 5087086   R495-14
5 37 1523 220 423856 5087086 turning to face the fracture, taking more photos Photo 9
5 38 1523 234 423855 5087078   R495-15
5 38 1523 236 423855 5087078   R495-16
5 38 1523 234 423855 5087078 one more photo of site and deployment. photo-10
5 39 1523 232 423936 5086880   R495-17
5 42 1522 228 423747 5087351 Need to reposition traps R495-18
5 48 1523 103 423833 5087055 Backside of Mkr-33 R495-19
5 49 1523 88 423851 5087102   R495-20
5 51 1524 36 424647 5087321 Tube worms galore R495-21
5 50 1524 40 423853 5087085 Moving to the S side of the sheet flow, where the slab has collapsed and there is new? venting. Tubeworms, snails, limpets, bacteria, bag creatures present. Possible that the slab of sheet dropped within the last year so this venting is a new expression.  
5 52 1524 36 423846 5087110 Concentrated diffuse venting has worms and snails. Trying to get a temperature. Max temp around 14 C.  
6 1 1523 184 423838 5087058 View of area around Mkr-33 photo-12
6 2 1523 197 423843 5087098 transect R495-22
6 2 1523 221 423713 5087595   R495-23
6 3 1522 216 423713 5087595   R495-24
6 3 1522 222 423713 5087595   R495-25
6 3 1522 217 423967 5086873   R495-26
6 7 1523 214 423718 5087595 Repositioning Bacterial traps 41 so that they are closer to venting.  
6 9 1523 213 423848 5087109 Trap reposition of 41, 42 looks good! R495-27
6 9 1523 190 423847 5087113 Moving ship to Mkr-108.  
6 16 1518 181 423968 5086640 lava spires R495-28
6 16 1519 179 423968 5086640 more lava pillars R495-29
6 18 1516 186 424779 5087025 A moving experience. over old collapse area, pillars galore.  
6 19 1518 182 423964 5086598 White bacterial? stains on tops of pillars/ lobate crusts of roofs of drained out areas.  
6 23 1517 175 423868 5086975 Continue in collapse area with many pillars. some seem to be aligned. May be 3-4 m deep? Altimeter is not on. Depth of collapse seems to be  
6 27 1519 239 423788 5086921 Pillars and collapse area. Photo 15 is of a fallen pillar. Photo 14,15
6 29 1519 218 423766 5086905 roof over pillar R495-30
6 30 1518 216 423761 5086896 Roof over collapse R495-31
6 30 1517 213 423766 5086891 Still heading SW. Started Imagenex. Collapse region, with more uncollapsed roof. Not more than a meter or two deep here.  
6 33 1517 212 423747 5086858 Turning on suction bottle to get a background temp.  
6 36 1519 217 423732 5086821 Large coherent sheet flow on floor of collapse. Taking temp up in water column. Folded and jumbled sheets.  
6 43 1519 274 423702 5086775 rumble-o-meter R495-32
6 40 1520 219 423719 5086780 Broken up sheets, chaotic area. Rumbleometer in sight. Sitting in folded sheets.  
6 44 1520 132 423716 5086770 Fairly flat area of mostly folded sheet flows and jumbled sheets. Light sediment in-between folds.  
6 48 1521 201 423784 5086704 Ropy sheets then into folded sheets and then jumbled sheets.  
6 49 1522 204 423781 5086656 Some relief here. Pillars again with bacterial staining. Lots of white staining. May be venting. more activity. Photo 16
6 51 1515 183 423778 5086616 water definite cloudy here.  
6 52 1518 186 423780 5086604 Pillars have staining on them but relatively little on the collapsed floor.  
6 54 1520 230 423780 5086589 Mkr-108? R495-33
6 54 1520 230 423780 5086589 Top of pillar with some bacterial stains. R495-34
6 54 1518 223 423775 5086591 good fixes.  
6 56 1509 350 423766 5086601 Tether management. We'll take a short break and then Andy will take over.  
7 6 1499 124 423738 5086632 looking for Mkr-108, bearing 105, around 25m away  
7 8 1523 100 423752 5086614 ropy sheet flow, possible venting to the left photo 17
7 8 1523 106 423758 5086612 staining of ropy sheets, with fracturing, mkr should be around south end of pillar photo 18
7 10 1519 39 423778 5086591 staining on pillar photo 19
7 10 1522 20 423752 5086608 tube worms visible, venting is apparent but no marker in sight, good fix  
7 11 1523 38 423777 5086605 no marker visible, but according to fix should be around 20 meters away  
7 13 1520 177 423407 5087266 staining visible on surrounding pillars  
7 14 1519 182 423782 5086601 smaller pillars with visible venting  
7 15 1519 250 423757 5086591 date is wrong on the overlay - it is one day behind  
7 16 1519 296 423757 5086593 coming around to get on south side of pillar, lots of white staining but no apparent venting  
7 16 1520 11 423772 5086587 no venting on south side of pillar  
7 17 1519 47 423772 5086585 possible marker in distance, moving around to check it out  
7 18 1520 6 423778 5086589 good fixes, lots of floc but no marker yet  
7 20 1520 100 423786 5086592 good fixes  
7 24 1518 251 423776 5086589 heading back to first place we saw venting, worms are visible on top of pillar  
7 25 1520 230 423778 5086580 stopped on top of pillar, appears that there is a little bit of venting, very slow trickle of non shimmery water.  
7 27 1519 318 423301 5087530 heading NW, 318.2 to the place we started looking for Mkr-108  
7 29 1521 338 423764 5086599 low lying pillar with cracks leading up to it, but no shimmering water, continuing  
7 32 1521 323 423756 5086603 good fix, has us right under cage  
7 33 1520 6 423746 5086625 fix now has us north west of cage, with no pillars in sight  
7 36 1520 270 423305 5087533 jagged, crumbly flow  
7 37 1521 271 423738 5086591 good fix, due west of target by about 40 meters but no pillars in sight  
7 38 1520 89 423726 5086587 heading straight east over jumbled ropy sheet flow  
7 39 1521 86 423749 5086583 good fix  
7 40 1520 86 423743 5086575 possible vent out of big hole, but we cant get to near it to check it out  
7 44 1521 81 423771 5086586 good fix, and some vent coming out of the base of a pillar, we are going to continue the transect to the east and then come back if there is nothing better  
7 47 1522 352 423773 5086605 venting coming out of hole with worms surrounding it. Dave has decided to sample here  
7 49 1523 29 423312 5087530 we are 20 meters at 329 from the target but have decided to sample from what appears to be two holes  
7 51 1523 73 423772 5086607 placing the temp probe inside one of the holes,  
7 56 1524 136 423781 5086593 good fix, but the temp probe bumped into the side of the vent and now it has collapsed into a swirling mass of floc and shimmering water, the temperature did reach 9 C though.  
8 7 1524 132 423771 5086608 temp is around 13.6 C for max  
8 7 1524 128 423772 5086609 starting first sample, max 13.6 C HFS-17_dfl

_R495-1
8 9 1524 132 423789 5086580 the last was a false start, now we are really sampling!  
8 11 1524 130 423771 5086608 Taking hfs at base of pillar near Mkr-108 R495-35
8 14 1524 131 423772 5086608 stopping sampling, 50ml sampled  
8 16 1524 130 423751 5086609 starting to sample with gas piston 5 HFS-5_dfl

_R495-2
8 17 1524 129 423751 5086609 stopping sampling at 125ml  
8 18 1524 128 423324 5087585 picture of sample site photo 20
8 18 1524 132 423981 5086592 starting sampling HFS-10_dfl

_R495-3
8 24 1524 130 423771 5086607 stopping sample with 60ml of fluid, this is the last fluid sample here, we are now heading south to slurp  
8 27 1524 128 423774 5086605 Where we fluid sampled near Mkr-108 R495-36
8 28 1524 126 423774 5086607 leaving sampling site  
8 29 1522 197 423752 5086602 saw 2 Alvin dive weights 1 m at 238 heading  
8 32 1523 204 423769 5086563 heading over ropy sheet flow to get a suction sample  
8 33 1525 220 423756 5086558 found a good pocket of sediment to sample, now attempting to pick up the suction sampler, good fix of x=3755 y=6560  
8 36 1525 219 423757 5086560 good fix  
8 47 1525 265 423293 5087520 people are now changing their minds whether they want samples here, we are moving into a better area to get suction samples  
8 50 1526 211 423759 5086554 beginning suction sampling, new fix is x=3759 y=6555 SS-j1_sed

_R495-4
8 51 1526 211 423759 5086556 Taking sediment sample near Mkr-108 R495-37
8 55 1526 212 423760 5086555 stopping sample  
8 58 1526 212 423759 5086555 suction is on SS-j4_sed

_R495-5
9 2 1526 211 423760 5086558 outlet temp probe on suction sampler is working but the inlet temp probe is broken off, we think it broke off sometime before now  
9 5 1526 213 423758 5086558 done sampling here, going to move ship and then head over to Castle, which is 40 m SE  
9 9 1500 15 423542 5087430 we are now up at 150m and there is definitely a plume, lot o' particles, Dave deduces that there must be more venting going on near Mkr-108 (which we never found) than we discovered  
9 12 1519 141 423542 5087430 we are down right under the cage, and found the venting that we first discovered when we got here  
9 13 1520 131 423790 5086551 ship moving 350m at heading 141  
9 24 1522 131 423794 5086585 transit to castle photo 21
9 25 1519 137 423808 5086578 going over some very think orange sediment, good fixes  
9 28 1522 153 423845 5086531 going over ropy sheet flow  
9 29 1518 156 423848 5086513 going over a long network of collapsed lobate roof  
9 30 1518 154 423858 5086498 good fixes  
9 31 1519 156 423860 5086495 no more sign of collapsed lobates, all are intact  
9 33 1520 161 423878 5086470 lot of collapsed lobate surfaces, held up by pillars  
9 35 1519 159 423894 5086437 we are 185 m away from castle  
9 36 1520 162 423898 5086427 beautiful skylight photo 2
9 36 1520 160 423898 5086427 Skylight with a basalt pillar supporting it R495-38
9 36 1520 158 423904 5086422 coming to the edge of a drain away area, lots of iron oxide sediment  
9 45 1521 154 425173 5086358 a beautiful example of a lobate crust, it looks solid but it isn't. surprise!  
9 46 1518 98 424003 5086307 lots of white staining on rock, there is a vent in site. we are officially at castle  
9 47 1511 64 424011 5086310 Castle R495-40
9 47 1512 66 424011 5086310 4011 6310 this is a good fix  
9 48 1512 49 424012 5086310 photo of castle photo 23
9 48 1512 55 425181 5086333 top of castle photo 24
9 48 1512 52 425181 5086333 Edge of Castle R495-41
9 49 1510 70 424013 5086310 top of castle photo 25
9 49 1512 117 424012 5086309 top of castle photo 26
9 49 1512 120 424012 5086309 SE view of Castle R495-43
9 49 1512 144 424012 5086314 top of castle photo 27
9 50 1514 151 424012 5086314 Another view of Castle R495-44
9 50 1513 158 424014 5086315 top of castle photo 28
9 50 1514 191 424013 5086315 top of castle photo 29
9 51 1514 219 424015 5086319 top of castle photo 30
9 51 1515 234 424003 5086317 A lower portion of Castle R495-46
9 51 1514 246 424003 5086317 side of castle photo 31
9 52 1512 281 424015 5086301 Castle again R495-47
9 52 1512 280 424015 5086301 bacteria side of castle photo 32
9 52 1513 220 424032 5086328 side of castle photo 3 and 34
9 54 1513 13 424013 5086305 Castle yet again R495-48
9 54 1514 12 424013 5086305 mat side of castle photo 35
9 54 1519 16 424013 5086305 Venting area on Castle R495-49
9 54 1520 20 424016 5086302 Another view of venting at Castle R495-50
9 55 1520 358 423982 5086306 parked in front of small anhydrite structure  
9 55 1520 3 424023 5086305 Top of spire with venting at Castle R495-51
9 56 1519 16 424016 5086310 Protozoan mat at Castle - the blue goo R495-52
9 57 1519 12 424001 5086310 lots o' limpets and blue protozoan mat above anhydrite structure  
9 58 1520 346 424002 5086310 three of Craig's traps are there but are completely covered in limpets!  
9 58 1520 345 424002 5086310 Bacteria traps at Castle deployed in '98 R495-53
9 59 1521 348 425181 5086324 anhydrite structure photo 36
9 59 1520 344 425299 5086355 attempting to break of anhydrite structure for Steve  
10 0 1520 348 425181 5086324 structure fell and we may try to pick it up after we fluid sample  
10 1 1520 345 425182 5086332 Bacteria trap at Castle R49-554
10 2 1520 348 423999 5086310 fluid is really rushing out of the hole we made by knocking over the anhydrite structure, placing temp probe into hole  
10 6 1521 350 425167 5086316 Temperature probe at Castle R495-55
10 7 1520 346 423576 5086341 max temp so far of 151 C, lost coms but now it is back  
10 10 1520 348 424015 5086303 temp has now peaked at 175 C  
10 12 1521 351 423978 5086313 temp increasing up to 255 C  
10 15 1521 349 424526 5086299 new high is 270  
10 16 1520 346 424016 5086309 starting fluid sampling at castle, t1 274 C, t2 17 5C, good fix at x= 4016 y= 6309 HFS-4_hfl

_R495-6
10 19 1521 348 424020 5086309 pump turned itself of and Dave is attempting to turn it on, which he succeeded at  
10 20 1521 351 424019 5086310 stopped sampling, 460 ml  
10 22 1521 352 424022 5086227 starting filtering for xrf HFS-2_hfl

_R495-7
10 27 1521 345 424016 5086309 Worms at Castle R495-56
10 27 1521 347 424016 5086309 sampling done at 507 ml  
10 27 1521 347 424019 5086310 probe nozzle appears to have crud on it, so Dave is trying to blow the flow out in reverse to clean the tip off, it appears successful  
10 31 1521 347 425189 5086335 starting sampling on bag 18 with filter HFS-18_hfl

_R495-8
10 34 1521 350 423998 5086310 sampling stopped, 3mins of sampling, around 375 ml  
10 39 1521 349 424016 5086310 gas tight fired at 10:40, starboard gas tight gtb_hfl_R495-9
10 46 1521 350 424021 5086310 getting 5 function positioned to take a Niskin  
10 52 1518 12 424202 5086836 Nisken collected 2m Niskin_R495-10
10 55 1515 311 424020 5086309 Steve and Bob highlight on  
10 58 1513 162 424018 5086313 FeOxide chimney photo 37
10 58 1513 158 424018 5086313 Castle again R495-57
10 59 1513 163 424016 5086314 Grabbed a large sulfide sample R495-58
10 59 1513 164 425183 5086324 chimney spire broken of, taken to the bottom to subsample  
11 2 1517 243 423999 5086320 ROPOS on the bottom near castle vent, trying to open the bag on the front of the fluid sampler with the probe. Bag is open, chimney is positioned above the bag. Pieces of the chimney are breaking off after hitting the fluid sampler and falling SF_R495-11
11 15 1518 261 424024 5086318 Moving to Flattop SE 5-10 m away.  
11 17 1515 162 425505 5086968 Arrived at Flattop, Mkr-N5. Look  
11 17 1512 158 425184 5086323 Mkr-N5, Flattop Photo 38
11 24 1512 97 424035 5086306 Attempting to collect a piece of FeO from the top of Flattop. Positioning sample over bag, opening the bag with the probe, putting FeO sample into bag. FeO_R495-12
11 31 1512 80 424036 5086306 Attempting to close the bag completely with the 5 function arm. Bag closed.  
11 33 1512 91 424034 5086306 Just next to Flattop there was another small FeO spire. Just about 2m away, heading west.  
11 36 1512 31 424042 5086291 ROPOS is moving back to the cage.  
11 39 1519 232 425193 5086345 ROPOS is on the bottom, starting to move toward Mkr-113.  
11 40 1520 231 424006 5086276 Moving over the old flow. Nav is reasonably good.  
11 47 1520 232 423996 5086280 good fix  
11 49 1521 232 425197 5086271 Partial collapse lobate area. May be young lava flow.  
11 53 1523 236 423912 5086200 Iron staining, a few meters back we went through the contact.  
11 59 1528 252 423550 5086856 Glassy flow, probably '98.  
12 0 1527 249 423829 5086153 Close up of jumbled lava flow, now with hydrothermal staining. Some ropy flows that are now broken up. Also lots of Fe oxyhydoxide  
12 1 1526 253 423800 5086133 Oxides Photo 40
12 1 1525 243 423794 5086128 The bottom Photo 41
12 2 1524 243 423783 5086121 Seeing some white mat. More white mat. Very broken up, drained out area.  
12 3 1525 247 423772 5086111 Lava looks like '98 flow, infiltrated with FeOxides, some more white sulfide mat.  
12 4 1524 243 423756 5086097 Patch of small tube worms  
12 4 1524 243 423756 5086097 Jumbles lava, with tube worms, and mat. Photo 42
12 5 1526 248 423756 5086097 Large ropy sheet flows, lots of FeOxide sediments, some white mat.  
12 6 1525 246 423756 5086097 Mat along the cracks  
12 6 1526 248 423721 5086083 cracks, mat and (before) we saw small tube worms. photo 4
12 8 1527 246 423702 5086077 large ropes, FeOxide sediment low temp hydrothermal deposits. photo 45
12 9 1526 244 423684 5086062 Fe deposit photo 46
12 9 1526 245 423677 5086057 Heavy FeOxide sediment photo 47
12 10 1526 241 423671 5086052 heavy FeOxide sediment on the ropy flow. photo 48
12 10 1525 247 423671 5086052 iron oxide sediment on sheet flows R49560
12 10 1524 244 423665 5086047 Mound of sheet flow, lots of FeOxide sediment, some light in color suggesting recent activity. photo 49
12 11 1524 243 423654 5086038 Over main sheet flow.  
12 12 1526 241 423650 5086035 Sheet flow with FeOxide. photo 50
12 12 1525 242 423645 5086030 push up area photo 51
12 13 1524 245 423624 5086014 Small collapse area. Now into a more solid lobate flow w/ drain outs.  
12 15 1523 243 422920 5085314 Spires in photo 52
12 15 1522 244 423595 5086006 More spires in a collapsed area. photo 53
12 16 1524 245 423586 5085997 more spires , roof collapse, in young lava. photo 53
12 17 1523 246 423567 5085980 Debris of collapsed roof material. photo 5
12 17 1522 244 423564 5085977 Floor of collapse area.  
12 18 1523 240 423557 5085970 Area of extensive drain out. Very broken up.  
12 19 1524 244 423545 5085966 Spires. photo 56
12 20 1523 246 423534 5085961 Drain out area, 4-5 meter high spires.  
12 20 1524 243 423529 5085956 natural bridge photo 57
12 21 1523 247 423517 5085947 lobate photo 58
12 22 1523 248 423511 5085943 Floating creature R49561
12 22 1522 243 423511 5085943 floating gelatinous creature. photo 59
12 25 1524 268 423463 5085921   photo 60
12 25 1524 268 423456 5085919 lobates photo 61
12 26 1523 269 422789 5085259 Ropy bottom  
12 26 1524 266 423450 5085934 white mat  
12 26 1525 270 423450 5085934 good fix.  
12 27 1524 267 422467 5084937 FeOxide sediment on pahoehoe photo 62
12 28 1524 272 423419 5085909 Tube worms.  
12 29 1524 274 423409 5085908 pillar with a lot of white staining photo 62
12 30 1524 272 423405 5085901   photo 64
12 31 1523 267 423398 5085903 on top with tube worms. photo 65
12 32 1523 271 423392 5085906 top surface with tube worms, bacterial mat , young lava, glassy. photo 6
12 33 1524 281 423392 5085906 Dead Tube worms near Mkr 13 R495-62
12 33 1522 273 423386 5085900 Spire covered with mat underneath.  
12 34 1524 270 423394 5085879 Dead tube worms near Mkr-113 R495-63
12 34 1524 275 423386 5085895 Lots of stressed or dead worms, spread out in a crack.  
12 36 1523 268 423596 5085540 Highlights on.  
12 36 1524 270 423388 5085889 Area of warm water.  
12 36 1524 265 423388 5085889 Tube worms. some alive near Mkr-113 R49565
12 37 1523 267 422765 5085284 Looking for Mkr-113  
12 39 1524 2 423357 5085901 spire structure, looks like a house. photo 676
12 39 1524 360 423364 5085906 Window in lava wall R49566
12 39 1525 356 423365 5085908 same another view photo 68
12 40 1525 358 423364 5085910 interior of column photo 69
12 40 1524 360 423368 5085912 tube worms photo 70
12 40 1523 358 423370 5085914 same as above, worms photo 71
12 41 1523 2 423372 5085919 warm water w/ new worms.  
12 41 1523 5 423372 5085926 arrive Mkr-13  
12 41 1523 4 423372 5085926 same photo 72
12 41 1525 3 423372 5085926 same marker 113 photos73 and 74
12 42 1525 358 423372 5085930 Marker 113 R495-67
12 42 1526 9 423371 5085930 Bottom of 113 photo 76
12 43 1524 343 423372 5085931 Mkr-113 photo 7
12 44 1524 334 423374 5085933 Looking around at Mkr-113.  
12 48 1525 209 423373 5085933 bacteria traps Mkr-113 R495-68
12 49 1525 204 423372 5085933 Really good fixes.  
12 50 1525 215 423373 5085932 Bacteria traps mkr 113 R495-69
12 50 1525 212 423373 5085932 Looking for a good spot to sample.  
12 50 1524 285 423372 5085932 New VCR tapes.  
12 54 1524 222 423378 5085928 Still looking for a good spot to collect fluid samples.  
12 58 1525 38 423370 5085933 Returned to Mkr-113 looking for a spot to sample water, up on top near a bacterial trap and tube worm area with good flow of water.  
13 0 1525 41 423370 5085933 Looking for a max temp with the probe. good fixes.  
13 3 1525 43 423370 5085932 bag 1 w/filter max t 20.3, T1 just lost coms. Pump is still on. Temp is now 21. T2=1.8 Starting again 13:07 HFS-11_dfl _R495-13
13 8 1525 43 423368 5085932 good fix. Still sampling bag w/filter. R495-13  
13 11 1525 40 422723 5085298 Stopping max T was 2.6 C.  
13 12 1525 41 423370 5085933 bacteria traps. mkr 113 R495-70
13 13 1525 44 423369 5085933 gas tight port side starting 13:14 done 13:14 gtb_dfl_R495-14
13 15 1525 40 423370 5085932 13:15 unfiltered bag 16 on 13:16:32, temp is going up 0.27 C, stopping 13:21:4 HFS-16_dfl _R495-15
13 22 1525 40 422430 5084988 ROPOS is lifting off in order to reposition for suction sampling.  
13 25 1525 100 423371 5085933 ROPOS has settled back down. Starting to flush the suction sampler.  
13 29 1525 91 423371 5085933 Suction sampler bottle 1 begin sampling mat near bacterial traps for Moyer. 13:32 stopping bottle 1 is full. SS-1_mat

_R495-16
13 32 1525 90 423370 5085933 Continuing to sample same mat area. pump on 13:34 . Hose has become disconnected from end of suction probe. 13:35 SS-2_mat

_R495-17
13 36 1525 90 423377 5085939 broken hose of slurp sampler R495-71
13 36 1525 87 423376 5085917 Laser dot on sampled area R495-72
13 45 1525 57 423371 5085934 Mkr-113 with filamentous bacteria growing on it R495-73
13 46 1525 37 422726 5085300 ROPOS is repositioning to pick up MTR  
13 48 1527 48 423370 5085931 photo of tube worms on the MTR line photo
13 48 1527 54 423370 5085931 tube worms growing on line R495-74
13 49 1527 43 423369 5085930 Releasing SS, 5 function arm is picking up the VEMCO (no #) MTR.  
13 51 1527 32 423369 5085930 Vemco MTR with tube worms on the line. Opening bag to deposit sample. Stuffing MTR and worms into the bag. MTR+bio

_R495-18
14 8 1527 29 423369 5085931 Opening the bag with the 5 function arm while bringing the lose, floating end of the MTR line in with the HFS probe. Not able to secure the line yet.  
14 11 1527 29 422726 5085299 holding the MTR line and the suction sampler handle in the 5 function arm. This secures the line.  
14 13 1527 32 423370 5085931 The bottom at the base of Mkr-113. photo
14 13 1526 350 423373 5085932 More bacteria traps, mkr 113 R495-75
14 13 1526 6 423370 5085930 ROPOS is moving. Doing a survey of the base of Mkr-113. Looking for bacteria traps.  
14 14 1527 5 423372 5085931 bacteria traps. photo
14 15 1526 328 423370 5085929 Area around bacteria traps at mkr 113 R495-76
14 15 1526 308 423372 5085933 base of Mkr-113. photo
14 15 1526 304 423372 5085933 bacteria traps mkr-113 R495-77
14 15 1524 356 423372 5085933 ROPOS is moving back to the cage.  
14 21 1524 186 423358 5085855 Leaving Mkr-113 Photo 82
14 22 1523 184 423355 5085850 Sub heading 185.  
14 22 1522 175 423360 5085853 lot of diffuse venting on bottom , lots of staining. photo 83
14 24 1523 181 422792 5085287 White staining, diffuse venting. photo 84
14 24 1523 177 423363 5085843 Highlights on.  
14 24 1524 182 423348 5085843 Lobate flow, with staining, mats and worms,  
14 25 1525 179 423380 5085860 staining white, active vent sites. photo 85
14 26 1524 175 422602 5085096 White staining and Fe staining. Diffuse venting has been mostly continuous so far. photo 86
14 26 1524 174 422396 5084985 Lateral back to the right. No more staining.  
14 27 1525 170 423361 5085803 lobates, not active for venting. photo 87
14 29 1525 182 423366 5085788 Traveling over lobates, no sign of active venting.  
14 30 1526 183 423386 5085798 Lots of orange sediment collected in lobate cracks. Crab. Photo 8
14 31 1526 168 423373 5085762 Orange sediment indicates that there used to be active venting in between lobates. Possible that some of the holes are still active.  
14 32 1526 173 423380 5085749 Lateraling to the right and orange sediment is decreasing.  
14 39 1530 177 423357 5085636 More signs of venting with increased orange sediment in cracks. About 140 m from Joystick. Photo 89
14 41 1532 181 423485 5085150 collapse & pillars R495-78
14 41 1532 182 423485 5085150 Jumbled, broken flow with some pillars. Photo 90
14 43 1531 189 423349 5085571 Water continuously cloudy. Less staining in cracks.  
14 44 1532 186 423348 5085559 Some white staining in cracks now. About 50 m from Joystick.  
14 45 1531 183 423351 5085545   Photo 91
14 46 1530 191 423347 5085535 Thick white mat on the side of a ridge, broken/jumbled flow. Lots of milky water coming out - looks like what Easy/Milky/Magnesia looked like last year. Photos 92 - 94
14 50 1534 67 423354 5085520 We are at Joystick - positioning to sample.  
14 55 1533 45 423310 5085484 Put new video tapes in.  
14 58 1535 64 423321 5085460 Positioning to fluid sample. Temperature up to 7 degrees C.  
15 3 1535 61 423380 5085501 Turning on piston #2 of the HFS. Temp. up to 9.6 degrees C. Pumping done at 15:09, 630 ml pumped. HFS-7_dfl _R495-19
15 9 1535 60 423326 5085469 Bag with .45 filter, HFS #14. Starting to pump at 15:1. Max temp. 8.7, but hanging around 6 degrees C. Stopping at 15:17, 643 ml was pumped. HFS-14_dfl _R495-20
15 18 1535 58 423301 5085430 3 micron/sterivex filter #12 of HFS selected. Started at 15:18. Lost computer connection at 15:21. Back on a minute later. Unsure of whether pumps continued to pump - turned off and back on to make sure. Stopping pumping at 15:33, pumped 150ml. HFS-12_dfl _R495-21
15 33 1535 43 422836 5085584 0.2 micron filter#6 of HFS, for FISH. Starting to pump at 15:35. Stopped pumping at 15:44, 1 L was pumped. Max temp 9 C HFS-6_dfl _R495-22
15 45 1534 46 422846 5085596 HFS # 24, gas piston starting. Stopped at 15:47, 150 ml pumped. HFS-24_dfl _R495-23
15 48 1534 46 422654 5084778 HFS # 15 with a 0.45 filter for lipids is starting. Max temp. 9.8 degrees C. Stopped at 15:58, 820 ml was pumped. HFS-15_dfl _R495-24
15 59 1534 46 423360 5085461 HFS #3 with a 0.45 filter for xrf. Starting at 16:01. Max. temp 10.1 degrees C. Stopped at 16:05, 570 ml pumped. HFS-3_dfl _R495-25
16 7 1534 44 423066 5085204 Finished sampling at Joystick (good fix: 423345, 5085486), going back to the cage before heading 250 to Coquille.  
16 23 1529 251 423368 5085478 Better position on Joystick: 423345, 5085495.  
16 25 1533 248 423337 5085464 Starting to move SW towards Coquille. Young ropy lava flows. Jumbled flow with lots of pillars - collapsed area. Photos97 - 99
16 28 1532 247 423353 5085491 Pillars and collapsed pit - only a 1-2 m drain out area. Photo 100
16 30 1532 246 423332 5085481 Lobate flows. Probably still young lavas, but some small sponges and ophuroids.  
16 33 1533 247 423216 5085426   Photo 101
16 35 1533 248 423157 5085388 Glassy lobes with accumulated sediment in cracks. Highlights was just on for 2 minutes. Photo 102
16 37 1534 258 423113 5085376 First patches of tube worms - is this old lava? The tube worms look old. Clam shells. Bob thinks we just went over the contact a few minutes ago.  
16 39 1535 269 423081 5085370 CONTACT with new lava again. Going back and forth between old and new lavas. Difficult to tell - confusing transitions between old and new. Photos 104 - 107
16 42 1535 274 423042 5085365 Some white mat in cracks, still complex terrain - old lavas with new down in the collapsed area?  
16 43 1536 270 423025 5085362 Orange staining between lobate cracks, some old tube worms and patches of clams. Photos 108 - 110
16 46 1535 270 422580 5085452 Coquilles vent, blue protozoan mat. R49579
16 47 1535 309 425368 5085241 #2 R495-80
16 45 1535 270 423146 5085200 Are we at Coquille yet? Yes, we are there! Bush of new worms with an old bunch to the right. Lots of anemones, protozoan mat, tons of limpets. Mats of limpets.  
16 52 1535 283 423538 5085831 #3 R495-81
16 53 1535 292 423641 5085489 #4 Limpet covered area at Coquilles R495-82
16 55 1536 336 422029 5087122 Fluid sampler probe being deployed at Coquilles R495-83
16 53 1535 292 423641 5085489 At Coquille - a small pit with TONS of limpets matting the basalt. Some new tube worms to - reinvigorated venting? Tried to fluid sample here but couldn't reach the flow, going to find another spot. Photo 114 - 115
17 2 1537 350 422970 5085359 Found a new area of flow - T= 5.8 C. A sunken pit surrounded by tons of limpets with a small bush of new tube worms in the middle. Trying to position the HFS intake in a good, warm stream of flow. Couldn't get it - moving again to another spot  
17 1 1536 353 422932 5085326 Depression at Coquilles. R495-84
17 9 1536 63 423348 5085740 Tube worm bush with good flow. Temp around 19 degrees Celsius R495-85
17 16 1536 55 423074 5085445 Close up of tube worms and limpets Coquilles. R495-86
17 18 1536 54 422983 5085374 Close up view of tube worm with limpets at Coquilles R495-87
17 21 1536 54 422979 5085364 Sea anemone, blue protozoan patch and clams at Coquille. R495-88
17 9 1536 63 423350 5085764 At a new tube worm bush, again trying to fluid sample. Temp. up to 19 degrees C. HFS #19 with 0.45 micron filter for chem/sulfur. Starting to pump at 17:12. Fix for this sample: 2973, 5358. HFS-19_dfl _R495-26
17 24 1535 40 423094 5085459 1716-1723 - great close up highlights of Coquille vent area. Limpets (L. fucensis), anemones, tube worms, Provanna variabilis, protozoan mat, scale worms (L. piscesae and Branchinotogluma sp). Heading to Bag City venting area - heading 255 for about 300 m Photos 119 - 121
17 29 1534 113 422938 5085318 On the periphery of Coquille still. Waiting for the ship to move. Photo 122
17 30 1534 113 422970 5085324 Looks like new tube worms (reinvigorated venting) is restricted to center of Coquille field - mostly older worms on the periphery. Photo 123 - 126
17 35 1535 116 422986 5085301 Older tube worm bush R495-89
17 34 1533 98 422981 5085303 Beginning to move towards Bag City. Passing over old lobates with old tube worm bushes. Clams in cracks between lobates. Photo 128.
17 36 1534 100 423006 5085309 Good fixes.  
17 39 1535 107 423031 5085295 Traversing over old lobate flows to Bag City. Some sparse clam shells.  
17 41 1534 101 423047 5085300 Just crossed the CONTACT, into new lava now.  
17 44 1533 101 423463 5085624 Older lava with sponges in between new lavas. Collapsed area, up onto the roof. Photo 129 - 130
17 46 1532 95 423264 5085438 Jumbled, broken lobates. Old lobates with quite a bit of sediment in cracks. Into cloudy water. Orange sediment getting thicker in-between lobates. Photo 131 - 133
17 48 1533 98 423133 5085271 Orange sediment in crevices. Approaching the venting area. Highlights on. Photo 134
17 50 1534 102 423174 5085256 Lava whorls and steep slope. Still 10m from Bag City. Photo 135 - 137
17 53 1532 109 423212 5085242   Photo 138
17 56 1534 94 422833 5084658 White bacterial mat on ridge structure. Tube worms on the roof of a collapsed pit. Lots of bag creatures I think. Looks like old worms. Bad fixes. Photo 140 - 141
18 2 1534 51 424587 5083247 Preparing for fluid sample with in a tube worm bush. R495-92
18 1 1530 88 423254 5085190 At Bag City, Mkr-36. Highlights off. Going in to fluid sample just next to Mkr-36. Photo 142
18 4 1534 63 422886 5084792 Probing temp. for fluid sampling. Temp max. is 2.7 degrees C.  
18 22 1534 196 423163 5085082 HFS working in tube worm bush @ Bag City R495-93
18 16 1534 196 423039 5084456 Starting to pump into piston #20 of HFS. T1 hanging around 2 degrees C. Really steady temp at 2.6 degrees C. Stopping at 18:23, pumped 683 ml. Max temp was 23.2 degrees C. HFS-20_dfl _R495-27
18 23 1534 193 423163 5085082 Starting to pump #23, gas piston of HSF. Stopping sample at 128 ml, max temp. 23.4 degrees C. HFS-23_dfl _R495-28
18 25 1534 196 423163 5085082 Starting to pump HSF 0.45 micron filter #21 for xrf. Keeping the same position in tube worm bush for a HFS samples here. Finished at 1828, pumped 50 ml. Max temp 23.3 degrees C. HFS-21_dfl _R495-29
18 32 1534 196 423951 5085648 3 micron/sterivex Filter #13 of HFS started at 1830. Stopping pumping at 1839, filtered 1 l of water. Tmax was 23.4 degrees C. HFS-13_dfl _R495-30
18 40 1534 194 423412 5085338 Starting to pump bag #9 with a POC filter. HFS-9_dfl _R495-31
18 45 1534 196 423250 5085182 R495-30: 53 ml pumped, stopped at 18:45. Starting to pump 0.45 micron filter #7 (for lipids) of HFS at 18:45. Stopped sampling at 1854, 1 L, Max. T 23.2C. HFS-7_dfl _R495-32
18 55 1534 191 423108 5085049 HFS sampler #1, FISH filter at same place at Bag City. Started at 1856. Stopped sampling at 1905, 1 L, Tmax 23.4C

NOTE: Date on video overlay is wrong. Reads 07-04 and should read 07-05 (American date system).

 HFS-1_dfl _R495-33
19 17 1534 193 423501 5085431 Northern transponder appears to have turned off by itself. Turned back on.  
19 27 1534 194 423501 5085431 Vemco temp probe being dangled over tube worms R495-95
19 33 1534 190 423087 5083893 Lost T-bar and end of suction sampler (previously separated from hose) while manipulating rope on Vemco recovered at Mkr-113.  
19 35 1534 172 423257 5085194 Deployed MTR at Bag City tube worm bush where fluid was sampled. Looking for end of suction sampler. Cannot retrieve it.

Photo of Bag City site. Good (awesome! even) fix of 3278, 5220 at Bag City site.

 Photo 143
19 44 1526 183 423251 5085182 Leaving Bag City on 190 course for 80 m along line of depressions in lava surface. This line continues the line of vents further north. Doing tether management first.  
19 50 1534 194 422428 5085029 Starting traverse in lobate lava. Lots of large drain structures. Asked bridge to move ship along the line.  
20 4 1531 106 423784 5085655 going from uncollapsed roof to deep collapse area  
20 4 1533 103 423233 5085212 moving ship to Bag City, then will start traverse to bearing 190 for 80 meters (along the apparent vent line that includes Mkr-113, joystick vent, and bag city). Jumbled sheet flow.  
20 5 1533 117 423257 5085211 staining found en route R495-96
20 5 1531 121 423257 5085211 ROPOS in back in bag city. SE Mkr-36 at bag city.  
20 7 1530 112 423207 5085282 whoops, nope we just went in circles back to Mkr-36, Bag Man City R495-97
20 7 1531 184 423230 5085172 Ship now starting the traverse at a bearing of 190. Lots of bags around bag city.  
20 9 1533 189 423211 5085255 Still white staining between lobes. Small collapse pit.  
20 10 1533 192 423262 5085149 Lobate surface with very large drainouts. White staining on rocks. Large narrow deep rift >10 m dep. White stain on both walls which are a few m apart. May be main eruptive area. Depth of vehicle 1534 m. Lots of particulates in the water column.  
20 17 1536 190 423123 5084672 Still in narrow crevice. 8 m deep beneath vehicle at 1539 m depth. Water column is murky. East and west walls here have no evidence of venting.  
20 20 1535 160 423258 5085076 Walls on both side are solid with no reentrance caused by drainouts. Clearly tectonic. Lots of centrimetric-size ruble. Some large sheets of lava have slide down into crevice without breaking up. Little white staining. x= 3246, y=5207 good fix  
20 25 1540 176 423375 5085287 Eastern wall of crevice - broken tubes. Photo 161 - no strobe. Photo 160
20 26 1536 152 423230 5084991 Very tectonized on west wall. FeOxide sediment on ledges. Up on top at west side, se lobate flows passing into ropy and curtain drape sheet lava as we continue west. NO evidence of tectonism. Depth 1540m.  
20 30 1540 195 423197 5084946 Continuing south. Sheet flows with pressure ridges forming jumbles of folded lavas. Proceeding back to east now.  
20 31 1539 193 423187 5084934 Good fix. Lateraling east over ropy and curtain drape sheet flow. Whorls in lava. Only slightly broken up.  
20 33 1538 195 423204 5084901 Intact ropy shell lava as we continue to lateral east.  
20 34 1538 172 423012 5084314 At east edge of crevice. Lots of crabs. Good fix x=3231, y=4880 at 20:35.  
20 37 1535 186 425255 5085415 Drainouts near top of crevice. Crevice bifurcates towards the north. Stopping ship to change course. x=3232, y=4843 good fix at 2038.  
20 41 1538 84 423232 5084816 Good fix. Up on flat area to the east of the crevice. Jumbled sheets.  
20 44 1537 130 423185 5084707 Jumbled sheets. Small white patches. FeOxide.  
20 44 1536 100 423238 5084797 good fix. We are to far east. Going back to west over drainouts.  
20 49 1536 187 423214 5084716 another collapsed area R495-99
20 48 1536 186 423204 5084720 Proceeding west. Lobate flows with some FeOxide patches. Changing ship's course back to 190.  
20 53 1538 194 423285 5084728 more R495-100
20 54 1539 191 423198 5084685 more of the pillar R495-101
20 51 1537 194 423191 5084691 Still traversing lobate lava. Some red staining on broken edges and between lobes. Dead worms. Reached large drainout/collapse. Crabs.  
20 56 1538 194 423194 5084670 more pillar R495-102
20 55 1538 191 423006 5084062 Layering on west wall of a N-S elongated collapse structure. Crabs. 8 m dep. 3194, 4670 good fix.  
20 57 1538 192 423192 5084658 lobe on pillar R495-104
20 58 1537 192 423191 5084653 Still in collapse. >10 m dep. Lateraling to west. good drainouts in wall. Murky water.  
21 0 1536 194 423217 5085350 tube worms R495-105
21 3 1538 192 423176 5084624 crab grab R495-106
21 0 1536 194 423217 5085350 Vent field. Dead/dying tube worms being eaten by crabs. In crevice. Broken of lobes. Stopping ship.  
21 7 1538 160 423145 5084590 3165, 4617 good fix at newly named Crevice Vent. Looking around the area.  
21 11 1538 104 424114 5085211 subsurface worms (deceased) R495-107
21 12 1538 94 424044 5085479 some severely confused worms R495-108
21 13 1538 95 424044 5085479 ? R495-109
21 19 1538 3 423183 5084625 into the tunnel R495110
21 21 1538 7 423181 5084631 tube worm patch R495-111
21 22 1538 1 423181 5084631 vent fish R495-112
21 22 1538 1 423244 5084794 vent fish in a subtly different pose R495-113
21 23 1538 0 423759 5085070 white polynoid included R495-114
21 18 1537 94 423553 5084023 Survey of tube worm area. Leave tube worm area quickly to east. Large patches of tube worms to the north.

3181, 4631 good fix at 221.

  
21 38 1538 30 423178 5084652 good Fix, sampling rock from Crevice Vent. Rck_R495-34
22 4 1538 14 423176 5084651 FeOxide and basalt glass beside small tube worm bush in jar J3. Very little sample but enough for SEM. Saw basalt piece that looks suspiciously like the one we just sampled. May be hole in the purse. SS-j3_FeO _R495-35
22 15 1538 202 423161 5084637 let the vacuuming begin R495-117
22 18 1538 202 422982 5084340 J2 jar of suction sampler after brief tube worm shake down R495-118
22 15 1538 203 423158 5084634 Suction sample (with broken hose tip) of small patch of dead tube worms in interstice of lava lobes taken for biology. Lots of FeOxide among tubes, though. SS-j2_bio _R495-36
22 25 1538 106 423178 5084820 hostile (and stupid, to) crab R495-119
22 29 1538 103 423152 5084632 Took Vemco out of the bag and held it in the port claw for the rest of the dive so as not to lose it because of the hole in the purse.  
22 34 1539 187 423140 5084606 more tube worms on the way south again R495-121
22 34 1538 187 423157 5084624 more structures and a crab, to R495-122
22 35 1538 190 423021 5084511 etc. R495-123
22 32 1537 157 423149 5084622 Continuing southward traverse. Initially passing over Crevice Vent. Lots of tube worm bushes. Depression here is ~6m dep.  
22 35 1539 191 423021 5084511 A few tube worms on east wall but essentially out of the field.  
22 36 1538 191 423141 5084796 top of .? R495-124
22 36 1538 191 423141 5084796 On west wall. No obvious hydrothermal activity but water is murky. Crevice is about 6 m deep.  
22 37 1540 192 423180 5084675   R49-5125
22 38 1539 191 423180 5084675 fissure? R495-126
22 39 1539 188 423176 5084235 more fissure R495-127
22 37 1540 190 423180 5084675 Broken lava, drainouts. Crevice disappears and then reappears.  
22 41 1540 196 423083 5084571 some sort of feature R495-128
22 41 1539 193 423196 5084236 hmmm fissure seems to have turned into an inverse fissure R495-129
22 39 1538 190 423026 5084729 Broken lava lobes on walls. Crevice only 2 or 3 m dep. Fresh looking pillows in bottom. Is this an eruptive center? Looks in places a lot like the SW Rift on Hawaii.  
22 43 1540 191 423204 5084648 Solid lobate surface. Very glassy surface. Looks like 1998 flow. No ROPOS fixes.  
22 45 1543 189 423139 5084576   R495-130
22 45 1544 185 423190 5084611   R495-131
22 46 1541 173 423234 5084624 top of 12 - 13 deep fissure R495-132
22 44 1542 182 423058 5084513 Depression ~4 m deep. Then another depression 12 m deep as we lateral to the east. No ROPOS fixes but we are getting cage fixes.  
22 48 1542 185 423004 5084622 Bottom of depression filed with ruble. What else would you expect?  
22 49 1543 184 423110 5084499 Depression is about 5 m wide here and 16-20 m dep. Drainout on west wall.  
22 51 1543 180 422640 5084416 a former vent? R495-134
22 51 1543 187 422868 5084475 Depression still about 5 m wide and 14 m dep. Stopping ship to take a good look at the wall.  
22 55 1544 182 423212 5084512 current venting here to R495-135
22 55 1544 182 423212 5084512 Venting on east wall. Small tube worm bushes.  
22 56 1546 154 423163 5083996 dead worm pile R495-136
22 56 1546 163 423163 5083996 Highlight film on. Bag creatures sited in ropy sheet flow.  
22 58 1542 82 423048 5084509 Highlight video off.  
23 2 1528 57 423236 5083897 Not getting good navigation. Might head back to cage. We have

a cage fix now.

  
23 6 1494 175 423120 5084352 Heading back to the cage and the cage is in view. Just got a new cage fix. The above fix is good.  
23 8 1494 171 423312 5083583 Cage fix with two tranponders. We are going to head south and apparently will have no navigation.  
23 11 1515 94 423119 5084352 We will head west now and we are going to look at the fissure below. Is it tectonic or eruptive? We will look for newer sheet flows on top and if it has older lavas at depth.  
23 14 1547 214 422849 5084565 Jumbled lavas near fissure, glassy with some hydrothermal

sediment.

  
23 16 1543 85 422966 5084677 Crossing the fissure, maybe. There is some question if the lavas are draping over. R495137
23 18 1543 84 423104 5084355 Tube worms near drop off.  
23 21 1540 273 423119 5084352 Heading west to find big fissure. If we don't find it, we will do a traverse to the southwest. Small groups of tube worms.  
23 22 1544 274 423071 5084280 Tube worms at the bottom of a 5 meter deep hole.  
23 23 1544 267 423094 5084345 good fix with 3 transponders with north net.  
23 24 1544 287 423270 5084979 Continuing to the west to find big fissure. Jumbled sheet flows.  
23 25 1543 284 423119 5084351 Drain out 6 meters dep. Not sure if this is the fissure.  
23 27 1541 271 423119 5084351 Back on lobate flows after we passed the drain out feature.  
23 27 1543 270 423119 5084351 Staining and tube worms.  
23 29 1539 277 423119 5084351 P code took a hit. Now moving to the traverse at 270, 60 meters range.  
23 33 1542 270 423119 5084351 P code back, on bottom again and heading west.  
23 34 1541 273 423114 5084443 Going west to the contact and then will angle to the southeast and cross it again.  
23 35 1544 275 423108 5084360 Heading due west across giant ropy sheet flows with push up structures.  
23 39 1547 280 423042 5084366 Lineated flow with brittle stars.  
23 39 1547 268 423066 5084361 lineated and ropy flows in big flat area R495-138
23 41 1545 269 423042 5084366 North to northwest lineation on the sheet flows.  
23 42 1544 271 423042 5084366 At the edge of drain out oriented 270.  
23 44 1543 267 423001 5084369 Glass lobate flows very similar to those mapped as the 1998 flows.  
23 46 1544 267 423001 5084369 Flows becoming more pillow like so we might be reaching the end of the flow.  
23 47 1544 267 423001 5084369 Some infilling with iron oxyhydroxide between pillows.  
23 49 1543 270 423001 5084369 Have moved 250 m west so far. Last sighting of the contact was 50 meters north.  
23 50 1542 268 423578 5084718 loads of cracked pillows R495-140
23 51 1544 268 423578 5084718 another one R49-5141
23 51 1544 270 423578 5084718 Small drainback in rock. R495-142
23 51 1544 270 423445 5084429 Just crossed a hole several meters dep.  
23 52 1544 265 423433 5084433 Crossing another collapse area with spires.  
23 53 1544 271 423452 5084166 Drain out 10 meters across. Drain back features on pillar.  
23 55 1544 272 423452 5084166 Drain out might have been caused by flow to the south.  
23 56 1544 269 423411 5084057 Collapse area with alot of finely broken ruble.  
23 57 1545 278 423310 5084343   R495-144
23 57 1545 275 423310 5084343 Entering large pillow lavas.  
23 58 1545 278 423310 5084343   R495-145
23 58 1546 277 422783 5084585 Holothurian sited and in patches of old lava. At contact.  
23 59 1546 282 422787 5084442 contact at west R495-146
0 0 1546 279 422787 5084442 Ophiris colonizing new lava.  
0 0 1546 278 422680 5084320 Collapsed stuff R495-147
0 2 1547 278 422656 5084333 A rare couple of ROV fixes.  
0 4 1544 273 422664 5084274 Sheet flow at the bottom of a drain out feature.  
0 5 1546 278 422569 5084305 possible young jumbled sheets to west of what we thought was the contact R495-148
0 5 1546 278 422569 5084305 Large jumbled piles of lava, all of it young. Lineation perpendicular to our track.  
0 7 1546 278 422568 5084329 Still in young looking sheets. Evidence of N->S flow.  
0 11 1546 277 422517 5084341 Getting some ROV fixes, now over lobate flows. Very glassy could be 1998 lavas.  
0 13 1547 275 422705 5084505 Little sediment, alot of brittle stars seen, an all lobate surface.  
0 14 1548 279 422478 5084345 Transition to pillow lavas.  
0 14 1548 280 422461 5084342 Contact, now into older lavas, continuing west.  
0 18 1549 279 422426 5084354 Photo 172, there are no strobes. More sediment over the old lavas than the young ones seen earlier.  
0 19 1549 278 422481 5084418 Heading 60 meters west and then will traverse at 125 for 20 meters.  
0 22 1549 277 422405 5084356 Almost 10 meters west of contact in old lavas.  
0 25 1549 275 422519 5083551 The ship is stopping. We are about to change heading to 125. 10 meters west of contact.  
0 28 1547 137 422479 5083403 Stern fix was recorded, now heading at 125.  
0 32 1550 120 422410 5084309 Ropos fix is good. We are probably 50 m from the contact. Holothurian.  
0 33 1550 126 422788 5083237 Contact is actually right here and now in the youngest lavas, - pillow basalts.  
0 35 1549 120 422458 5084296 Heading up hill, another contact to an even younger lava. x=2465 y=4294 ROV fix.  
0 37 1548 127 422475 5083852 Altered pillows surrounded by newest (1998?) lobates.  
0 39 1547 126 422509 5084273 ROV fix is good. Very shiny lobates and pillows.  
0 41 1548 127 422434 5084304 Right over a drop of. R495-149
0 42 1549 128 422697 5083877 Jumbled sheet flow.  
0 43 1548 119 422250 5084044 Down in a depression.  
0 49 1549 104 422680 5084286 lineated sheet flow with sediment in cracks.  
0 52 1551 123 422680 5084286 Might be in intermediate lavas again.  
0 54 1549 113 422680 5084286 Crab seen  
0 54 1549 115 422680 5084286 Drop ofd, drain back features.  
0 55 1548 127 421699 5084246 Drainback features on wall of collapse pit.  
0 59 1548 120 422796 5083988 lava pillar and roof in drainback feature. R495-150
1 6 1549 127 422862 5084036 Jumbled sheet flows.  
1 7 1549 118 422877 5084023 Into lobates, collapsed lobates and glassy lobes.  
1 8 1549 119 422914 5084010 Another collapse structure then into lobate flows.  
1 10 1551 127 422653 5084171 Very jumbled flows thought to be of intermediate age.  
1 14 1551 120 423107 5083994 More coherent sheet flows, past area of fissures. We didn't sew fissures but saw alot of broken up ruble.  
1 16 1549 121 423035 5083964 Screens have gone black.  
1 22 1549 121 423035 5083964 ROPOS is in the cage.  
1 27 1377 322 423035 5083964 Brief picture before it went dark again.  
1 31 1331 38 423035 5083964 Video back, looks like end of dive.  
1 38 1367 206 423035 5083964 ROPOS out of cage and heading back down.  
1 49 1554 145 423035 5083964 Bottom in view.  
1 56 1556 136 423035 5083964 Kipuka of older sponge-covered lava amidst younger lava R495-151
1 56 1556 136 423035 5083964 Older lava with many sponges surrounded by newer lava, about 10 m down the track from where we left the bottom.  
1 58 1557 133 423035 5083964 Screen went black again.  
2 2 1557 133 423035 5083964 ROPOS back in cage.  
2 9 1557 133 423035 5083964 Dive is now coming up. Aborted due to telemetry problems  
3 5 1557 133 423035 5083964 ROPOS on deck, due to more telemetry? problems.  
       Dive Summary: Deployed OsmoSampler Mkr-33. HFS sampling and suction sampling at Mkr-108. HFS sampling, gastight and nisken at Castle. FeOxide sample at Mkr-N5. HFS, gastight, suction samples and Vemco recovered at Mkr-113.  
      Collected 7 HFS samples at Joystick. HFS sample at Coquille. Collected 7 HFS samples at Bag City also. Gathered rock and suction samples at Crevice. A background water sample was collected on the ROPOS ascent - 1300 m depth.  
      The balance of the dive was given over to geologic mapping A couple of new diffuse vents were discovered. It is believed that we were actually observing lavas from three separate eruptions. The ages of