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 (IFM-GEOMAR Leibniz Institute of Marine Sciences, Kiel)
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° 14' 35" S  74° 4' 30" W — Gravity core
Core - soft bottom35° 31' 59" S  73° 21' 59" W — 4 gravity cores
Core - soft bottom34° 41' 42" S  74° 12' 54" W — Gravity core
Core - soft bottom34° 35' 35" S  74° 28' 11" W — Gravity core
Core - soft bottom35° 39' 59" S  73° 34' 59" W — 6 gravity cores
Seismic refraction36° 24' 59" S  73° 42' 59" W — 19 OBS
Seismic refraction35° 54' 59" S  73° 34' 59" W — 19 OBS
Seismic refraction35° 39' 59" S  73° 34' 59" W — 19 OBS
Seismic refraction35° 31' 59" S  73° 19' 59" W — 19 OBS
Other geological/geophysical measurements35° 27' 0" S  73° 19' 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 measurements34° 35' 29" S  72° 22' 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° 15' 0" S  73° 21' 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