2013 Volume 78 Issue 1 Pages 104-112
Several long piston and gravity cores of the Japan Sea sediment are recovered during the cruise of the R/V Marione Dufresne in 2010 (MD179). Fundamental core description on-board and the images of multi-scanner and X-ray CT scanner is presented here to share common information of the collected sediments that will be served for various analytical studies.
The sediments of the most cores are disturbed more or less by faults or folds even if they were very minute and the stratigraphic succession is kept in order. The TL layers are hardly identified in some horizons of several cores whose sediments are disturbed by slumping and/or brecciated by debris flow.
MD179-3312 is selected to compare with a published figure of columnar section from the Japan Sea, the secular changes of the δ18O of both seawater and the ice sheet of the northern Greenland.
