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Core description

The 313 m long core was obtained during IODP Expedition 303, on board the R/V JOIDES Resolution, from a water depth of 3459 m and located at the southernmost point of the Eirik Drift (Fig. F1).

The core is composed of mostly silty clay with siliciclastic grains and siliceous biogenic tests (see the “Site U1305” chapter [Expedition 303 Scientists, 2006b]). The silty clay is intercalated with siliciclastic sand and detrital carbonate layers. Most of the sand layers are relatively dark in color and have sharp basal contacts, parallel laminae (with local cross-laminae), and a fining-upward structure (Fig. F2A); these features show the sediments are probably of turbidite origin. The sand carries high magnetic susceptibility. The detrital carbonate layers are characterized by the intercalations of pale green bands with light gray detrital carbonate laminae (Fig. F2B). They have low magnetic susceptibility.