Cruise inventory

RRS James Clark Ross JR19960403 (JR12)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR19960403 (JR12)
Cruise period1996-03-05 — 1996-04-03
StatusCompleted
Port of departureStanley, Falkland Islands (Malvinas)
Port of returnStanley, Falkland Islands (Malvinas)
PurposeResearch
ObjectivesThis cruise followed the systematic sonar mapping campaign of JR09a by carrying out detailed geological and geophysical surveys along the East Scotia Ridge. The base maps provided by the 1995 HAWAII-MR1 survey allowed very precise targeting of rock sampling and seismic survey lines. Cruise JR12 aimed to define the three-dimensional structure of an anomalous region of the Ridge by collecting seismic data along closely-spaced profiles and deploying disposable sonobuoys.
Chief scientistRoy Livermore (British Antarctic Survey)
ProjectMarine Geophysics Cruise - East Scotia Sea
Coordinating bodyBAS
Cruise reportRRS James Clark Ross JR19960403 (JR12) cruise report jr12.pdf — access key 'C' (8.73 MB) 
Ocean/sea areas 
GeneralSouth Atlantic Ocean
SpecificSouthern Ocean
Measurements 
Physical oceanography 
BathythermographDescription: A number of XBTs were launched on the cruise. No. of deployments not noted.
Geology and geophysics 
DredgeDescription: Several dredges were made throughout the cruise. No. of dredges not noted.
Core - soft bottomDescription: Wax coring samples were made throughout the cruise. No. of samples not noted.
Single channel seismic reflectionDescription: Seismic gear was used during the cruise. No. of deployments not noted.
Magnetic measurementsQuantity: number of profiles = 1
Description: A magnetometer fish was deployed during the cruise.