Cruise inventory

RRS James Cook JC023B

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Cook (740H)
Cruise identifierJC023B
Cruise period2008-03-26 — 2008-04-18
StatusCompleted
Port of departureValparaiso, Chile
Port of returnValparaiso, Chile
PurposeResearch
ObjectivesHigh-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 scientistJoerg Bialas (Helmholtz Centre for Ocean Research, Kiel (West Shore Campus))
ProjectSFB574
Coordinating bodyUniversity of Kiel - IFM-GEOMAR
Cruise reportRRS James Cook JC023B cruise report jc023.pdf — access key 'C' (38.76 MB) 
Ocean/sea areas 
GeneralSouth East Pacific Ocean (limit 140W)
SpecificSE Pacific
Measurements 
Geology and geophysics 
Long/short range side scan sonarQuantity: track kilometres = 500
Description: Deep towed sidescan sonar
Multichannel seismic reflectionQuantity: track kilometres = 585
Description: Reflection seismic profiling, GI airgun, surface streamer 50 m active length
Seismic refractionQuantity: track kilometres = 160
Description: Refraction seismic profiling, GI airgun, OBS
Moorings, landers, buoys 
Geology and geophysics 
Core - soft bottom34° 35' 35" S  74° 28' 11" W — Gravity core
Core - soft bottom34° 14' 35" S  74° 4' 30" W — Gravity core
Core - soft bottom34° 41' 42" S  74° 12' 54" W — Gravity core
Core - soft bottom35° 31' 59" S  73° 21' 59" W — 4 gravity cores
Core - soft bottom35° 39' 59" S  73° 34' 59" W — 6 gravity cores
Seismic refraction35° 31' 59" S  73° 19' 59" W — 19 OBS
Seismic refraction35° 39' 59" S  73° 34' 59" W — 19 OBS
Seismic refraction36° 24' 59" S  73° 42' 59" W — 19 OBS
Seismic refraction35° 54' 59" S  73° 34' 59" W — 19 OBS
Other geological/geophysical measurements34° 15' 0" S  73° 21' 59" W — OBS, seismology, April to October 2008
Other geological/geophysical measurements35° 4' 59" S  73° 12' 0" W — OBS, seismology, April to October 2008
Other geological/geophysical measurements34° 35' 29" S  72° 22' 59" W — OBS, seismology, April to October 2008
Other geological/geophysical measurements35° 12' 59" S  72° 49' 59" W — OBS, seismology, April to October 2008
Other geological/geophysical measurements35° 37' 59" S  73° 0' 0" W — OBS, seismology, April to October 2008
Other geological/geophysical measurements35° 27' 0" S  73° 19' 59" W — OBS, seismology, April to October 2008