RRS James Cook JC023B
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS James Cook (740H) |
| Cruise identifier | JC023B |
| Cruise period | 2008-03-26 — 2008-04-18 |
| Status | Completed |
| Port of departure | Valparaiso, Chile |
| Port of return | Valparaiso, Chile |
| Purpose | Research |
| Objectives | High-resolution active seismic investigations of slump structures and seep sites along the accreationary Chilean continental margin. Ocean-Bottom-Seismometers, multichannel seismic streamer and deep towed sidescan data were acquired using high frequent GI airguns as source. Gravity cores were taken for ground truthing. |
| Chief scientist | Joerg Bialas (GEOMAR Helmholtz Centre for Ocean Research, Kiel (West Shore Campus)) |
| Project | SFB574 |
| Coordinating body | University of Kiel - IFM-GEOMAR |
| Cruise report |  (38.76 MB) |
| Ocean/sea areas | |
| General | South East Pacific Ocean (limit 140W) |
| Specific | SE Pacific |
| Measurements | |
| Geology and geophysics | |
| Long/short range side scan sonar | Quantity: track kilometres = 500 Description: Deep towed sidescan sonar |
| Multichannel seismic reflection | Quantity: track kilometres = 585 Description: Reflection seismic profiling, GI airgun, surface streamer 50 m active length |
| Seismic refraction | Quantity: track kilometres = 160 Description: Refraction seismic profiling, GI airgun, OBS |
| Moorings, landers, buoys | |
| Geology and geophysics | |
| Core - soft bottom | 34° 35' 35" S 74° 28' 11" W — Gravity core |
| Core - soft bottom | 34° 41' 42" S 74° 12' 54" W — Gravity core |
| Core - soft bottom | 35° 39' 59" S 73° 34' 59" W — 6 gravity cores |
| Core - soft bottom | 34° 14' 35" S 74° 4' 30" W — Gravity core |
| Core - soft bottom | 35° 31' 59" S 73° 21' 59" W — 4 gravity cores |
| Seismic refraction | 35° 31' 59" S 73° 19' 59" W — 19 OBS |
| Seismic refraction | 36° 24' 59" S 73° 42' 59" W — 19 OBS |
| Seismic refraction | 35° 54' 59" S 73° 34' 59" W — 19 OBS |
| Seismic refraction | 35° 39' 59" S 73° 34' 59" W — 19 OBS |
| Other geological/geophysical measurements | 34° 35' 29" S 72° 22' 59" W — OBS, seismology, April to October 2008 |
| Other geological/geophysical measurements | 35° 4' 59" S 73° 12' 0" W — OBS, seismology, April to October 2008 |
| Other geological/geophysical measurements | 35° 27' 0" S 73° 19' 59" W — OBS, seismology, April to October 2008 |
| Other geological/geophysical measurements | 35° 37' 59" S 73° 0' 0" W — OBS, seismology, April to October 2008 |
| Other geological/geophysical measurements | 34° 15' 0" S 73° 21' 59" W — OBS, seismology, April to October 2008 |
| Other geological/geophysical measurements | 35° 12' 59" S 72° 49' 59" W — OBS, seismology, April to October 2008 |
