5.1 1998 Dive Dates and Locations

ROPOS Dives R460 - R480



  Dive # Date Location
R460 JD 240-241

Aug 28-29

 SE Caldera SRZ:

Mkrs N3, 33; Milky, The Pit, Cloud Vents
R461 JD 241-243

Aug 29-31

 SE Caldera SRZ:

Rumbleometer; Mkrs 108,33,113; Cloud, Sulfide, Castle, Circular Vents
R462 JD 243 - 244

Aug 31 - Sept 1

 SE Caldera SRZ:

Mkr-33, Cloud Vent
R463 JD 244 - 245

Sept 1 - 2

 SE Caldera SRZ:

Easy, Milky Vents; (+ Imagenex survey)
R464 JD 245

Sept 2

 SE Caldera SRZ:

Oxide, MiniSnow, The Pit, Snail, Mkr-108, Mkr-113, Castle Vents
R465 JD 246

Sept 3

 South Rift Zone:

reconnaissance survey
R466 JD 247

Sept 4

 ASHES:

Hell, ROPOS, Hillock/Phoenix, Hairdo and Inferno Vents
R467 JD 248 - 249

Sept 5 - 6

 North Rift Zone:

Extensometers; Bob Vent: (+Imagenex survey)
R468 JD 250

Sept 7

 ASHES:

Gollum, Hell, ROPOS, Hillock/Phoenix, Crack Vents
R469 JD 250 - 251

Sept 7 - 8

 ASHES:

Medusa, Mushroom, Marshmallow, Gollum, Daves Styx and Fe-Hyde Vents; (+Imagenex survey)
R470 JD 251

Sept 8

 North Rift Zone:

Extensometers
R471 JD 252

Sept 9

 ASHES:

Gollum, Mushroom, White, Inferno, Hell Vents
R472 JD 252

Sept 9

 ASHES:

Steve Mound, Hell, Phoenix, Medusa, Inferno Vents
R473 JD 253 - 254

Sept 10 - 11

 SE Caldera SRZ:

Easy, Milky, Roof, The Pit, Snowblower, Mkr-33, Mkr-108, Cloud, Castle Vents; (+Imagenex survey)
R474 JD 255

Sept 12

 SE Caldera SRZ:

The Pit, Milky Vents; Rumbleometer; Lava Flow Mapping Traverses
R475   Dive aborted
R476 JD 256 - 257

Sept 13 - 14

 SE Caldera SRZ:

Magnesia, Easy, Old Worms, Milky Vents;

Lava flow traverses; (+ Imagenex survey)
R477 JD 258

Sept 15

 SE Caldera SRZ:

Rumbleometer; Mkr-33 Vent
R478 JD 258

Sept 15

 SE Caldera SRZ:

Mkr-33, Mkr-n4, Cloud, Nascent Vents
R479 JD 259 - 260

Sept 16 - 17

 Northern traverse along caldera wall:

ASHES:

Hell, Virgin, Mushroom, Medusa, Inferno Vents; (+Imagenex survey)
R480 JD 261 - 262

Sept 18 - 19

 North Rift Zone and Northern Caldera Wall:

Extensometers; CASM (Shepherd?) Vent