Journal
PALEOCEANOGRAPHY
Volume 23, Issue 1, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2007PA001476
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Funding
- NERC [NE/D000343/1] Funding Source: UKRI
- STFC [PP/D002176/1] Funding Source: UKRI
- Natural Environment Research Council [NE/D000343/1] Funding Source: researchfish
- Science and Technology Facilities Council [PP/D002176/1] Funding Source: researchfish
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Cenozoic biostratigraphic, cosmogenic isotope, magnetostratigraphic, and cyclostratigraphic data derived from Integrated Ocean Drilling Program Expedition 302, the Arctic Coring Expedition (ACEX), are merged into a coherent age model. This age model has low resolution because of poor core recovery, limited availability of biostratigraphic information, and the complex nature of the magnetostratigraphic record. One 2.2 Ma long hiatus occurs in the late Miocene; another spans 26 Ma (18.2 - 44.4 Ma). The average sedimentation rate in the recovered Cenozoic sediments is about 15 m/Ma. Core-seismic correlation links the ACEX sediments to the reflection seismic stratigraphy of line AWI-91090, on which the ACEX sites were drilled. This seismostratigraphy can be correlated over wide geographic areas in the central Arctic Ocean, implying that the ACEX age model can be extended well beyond the drill sites.
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