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Age model and core-seismic integration for the Cenozoic Arctic Coring Expedition sediments from the Lomonosov Ridge

Age model and core-seismic integration for the Cenozoic Arctic Coring Expedition sediments from the Lomonosov Ridge
Age model and core-seismic integration for the Cenozoic Arctic Coring Expedition sediments from the Lomonosov Ridge
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.
0883-8305
PA1S03
Backman, J.
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Jakobsson, M.
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Frank, M.
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Sangiorgi, F.
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Brinkhuis, H.
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Stickley, C.
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O'Regan, M.
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Løvlie, R.
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Pälike, H.
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Spofforth, D.
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Gattacecca, J.
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Moran, K.
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King, J.
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Heil, C.
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Backman, J.
b2d77581-60c6-44fd-b61e-9dfbd85f2a8f
Jakobsson, M.
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Frank, M.
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Sangiorgi, F.
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Brinkhuis, H.
c9577a7a-c06c-44af-a641-015aacc50b57
Stickley, C.
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O'Regan, M.
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Løvlie, R.
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Pälike, H.
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Spofforth, D.
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Gattacecca, J.
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Moran, K.
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King, J.
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Heil, C.
5514d646-fe01-40f9-ba18-976e9e897971

Backman, J., Jakobsson, M., Frank, M., Sangiorgi, F., Brinkhuis, H., Stickley, C., O'Regan, M., Løvlie, R., Pälike, H., Spofforth, D., Gattacecca, J., Moran, K., King, J. and Heil, C. (2008) Age model and core-seismic integration for the Cenozoic Arctic Coring Expedition sediments from the Lomonosov Ridge. Paleoceanography, 23, PA1S03. (doi:10.1029/2007PA001476).

Record type: Article

Abstract

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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Published date: 2008
Organisations: Ocean and Earth Science

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Local EPrints ID: 50747
URI: https://eprints.soton.ac.uk/id/eprint/50747
ISSN: 0883-8305
PURE UUID: f73332c2-a055-4f2e-970b-417e84cd5b66

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Date deposited: 19 Mar 2008
Last modified: 13 Mar 2019 20:50

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Contributors

Author: J. Backman
Author: M. Jakobsson
Author: M. Frank
Author: F. Sangiorgi
Author: H. Brinkhuis
Author: C. Stickley
Author: M. O'Regan
Author: R. Løvlie
Author: H. Pälike
Author: D. Spofforth
Author: J. Gattacecca
Author: K. Moran
Author: J. King
Author: C. Heil

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