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doi:10.2204/iodp.proc.302.202.2008

Conclusions

By integrating material recovered during ACEX with sediments recovered from neighboring piston cores, improvements to the composite depth scale have been made. In the revised composite depth scale the continuous undisturbed spliced record ends at the base of Section 302-M0004A-3X-2 (26.45 mcd, 26.69 rmcd). Above 19.33 mcd, where APC cores were collected, the maximum difference between the mcd and rmcd scale is 11 cm. Below this point differences become larger, and depths for Cores 302-M0002A-7X through 13X are revised to bring them closer to their mbsf depths. The revised composite section can be accurately integrated with shallow penetrating piston cores collected on previous expeditions, providing a baseline for future studies that pool the resources and data available from all these central Arctic sites.

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