Table 1. Operations plan and time estimate for Leg 205 primary sites.
Site No. |
Location Lat./Long. |
Water Depth |
Operations Description | Transit (days) |
On-Site (days) |
San Diego, USA | 32.45°N | Transit 2422 nmi San Diego to Site 1039R | 9.6 | ||
117.10°W | |||||
1039R Basement |
9.64°N | 4352 | Set reentry cone w/ 60 m 16" casing | 16.5 | |
86.20°W | m | Drill 60 - 340 mbsf, RCB core 340 - 600 mbsf (80 m basement) | |||
Set and cement 10-3/4" casing to 530 mbsf | |||||
Install osmo-sampler screen @ 550 mbsf w/ packer @ 545 mbsf | |||||
Install osmo-sampler | |||||
Deploy ROV/submersible platform | |||||
Transit | Transit 2.8 nmi Site 1039R to Site 1040R | 0.1 | |||
1040R-A Underthrust |
9.66°N | 4177 | Set reentry cone w/ 60 m 16" casing | 11.6 | |
86.18°W | m | Drill 0 to 180 mbsf, RCB 180-435 mbsf | |||
Set 10-3/4" casing to 410 mbsf | |||||
Install osmo-sampler screen @ 425 mbsf w/ packer @ 420 mbsf | |||||
Install osmo-sampler | |||||
Deploy ROV/submersible platform | |||||
1040R-B Decollement |
9.66°N | 4177 | Set reentry cone w/ 60 m 16" casing | 7.2 | |
86.18°W | m | Set and cement 10-3/4" casing to 315 mbsf | |||
Install osmo-sampler screen @ 330 mbsf w/ packer @ 325 mbsf | |||||
Install osmo-sampler | |||||
Deploy ROV/submersible platform | |||||
1040R-C Decollement |
9.66°N | 4177 | Set reentry cone w/ 60 m 16" casing | 7.2 | |
86.18°W | m | Set and cement 10-3/4" casing to 315 mbsf | |||
Install osmo-sampler screen @ 330 mbsf w/ packer @ 325 mbsf | |||||
Install osmo-sampler | |||||
Deploy ROV/submersible platform | |||||
Balboa, Panama | 8.57°N | Transit 632 nmi Site 1040R to Balboa, Panama | 2.8 | ||
79.33°W | |||||
Subtotal: | 12.5 | 42.5 | |||
ESTIMATED OPERATING DAYS TOTAL: | 55.0 |