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Planktonic

Foraminifera

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Figure 14.12. Variations of the number of detritie grains and planktonic foraminifer shells in core SU 90-24 from the Irminger Basin. This core received only ice-rafted detritus brought by icebergs originating from the Norwegian-Greenland Sea, characterized by large amounts of volcanic glass. HE indicates Heinrich events. DE indicates smaller detrital events in the sediment, coinciding w ith the cold phase of D-O events recognized in the GRIP ice corc.

Core ODP 609 Bond et al 1995

DetritaJ cabonate: Laurentitc icc sheet

Volcanic ash: Iceland

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