Core replica: Arctic Coring – IODP Expedition 302 (ACEX)
Mid Eocene Arctic sediments – Microlaminations of dark organic-rich Azolla alternating with microfossils (e.g. diatoms) in a mid-Eocene (~50Ma) sediment suggest fresh-water episodes in Arctic surface waters.
Replica of a core drilled in Mid Eocene sediments of the central Arctic Ocean by the ECORD Science Operator during IODP Expedition 302 ACEX in 2004 – the first scientific drilling expedition to the central Arctic Ocean, 250km from the North Pole.
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