Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin

Constraints for paleoceanographic reconstruction

L. Tauxe, C. E. Stickley, S. Sugisaki, P. K. Bijl, S. M. Bohaty, H. Brinkhuis, C. Escutia, J. A. Flores, A. J.P. Houben, M. Iwai, F. Jiménez-Espejo, R. McKay, Sandra Passchier, J. Pross, C. R. Riesselman, U. Rhl, F. Sangiorgi, K. Welsh, A. Klaus, A. Fehr & 11 others J. A.P. Bendle, R. Dunbar, J. Gonzlez, T. Hayden, K. Katsuki, M. P. Olney, S. F. Pekar, P. K. Shrivastava, T. Van De Flierdt, T. Williams, M. Yamane

Research output: Contribution to journalArticleResearchpeer-review

51 Citations (Scopus)

Abstract

The Integrated Ocean Drilling Program Expedition 318 to the Wilkes Land margin of Antarctica recovered a sedimentary succession ranging in age from lower Eocene to the Holocene. Excellent stratigraphic control is key to understanding the timing of paleoceanographic events through critical climate intervals. Drill sites recovered the lower and middle Eocene, nearly the entire Oligocene, the Miocene from about 17Ma, the entire Pliocene and much of the Pleistocene. The paleomagnetic properties are generally suitable for magnetostratigraphic interpretation, with well-behaved demagnetization diagrams, uniform distribution of declinations, and a clear separation into two inclination modes. Although the sequences were discontinuously recovered with many gaps due to coring, and there are hiatuses from sedimentary and tectonic processes, the magnetostratigraphic patterns are in general readily interpretable. Our interpretations are integrated with the diatom, radiolarian, calcareous nannofossils and dinoflagellate cyst (dinocyst) biostratigraphy. The magnetostratigraphy significantly improves the resolution of the chronostratigraphy, particularly in intervals with poor biostratigraphic control. However, Southern Ocean records with reliable magnetostratigraphies are notably scarce, and the data reported here provide an opportunity for improved calibration of the biostratigraphic records. In particular, we provide a rare magnetostratigraphic calibration for dinocyst biostratigraphy in the Paleogene and a substantially improved diatom calibration for the Pliocene. This paper presents the stratigraphic framework for future paleoceanographic proxy records which are being developed for the Wilkes Land margin cores. It further provides tight constraints on the duration of regional hiatuses inferred from seismic surveys of the region.

Original languageEnglish
Article numberPA2214
JournalPaleoceanography
Volume27
Issue number2
DOIs
StatePublished - 1 Jun 2012

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dinoflagellate cyst
calibration
biostratigraphy
Pliocene
Eocene
diatom
chronostratigraphy
magnetostratigraphy
demagnetization
nanofossil
seismic survey
Ocean Drilling Program
Paleogene
Oligocene
diagram
Miocene
Holocene
Pleistocene
tectonics
climate

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Tauxe, L., Stickley, C. E., Sugisaki, S., Bijl, P. K., Bohaty, S. M., Brinkhuis, H., ... Yamane, M. (2012). Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin: Constraints for paleoceanographic reconstruction. Paleoceanography, 27(2), [PA2214]. https://doi.org/10.1029/2012PA002308
Tauxe, L. ; Stickley, C. E. ; Sugisaki, S. ; Bijl, P. K. ; Bohaty, S. M. ; Brinkhuis, H. ; Escutia, C. ; Flores, J. A. ; Houben, A. J.P. ; Iwai, M. ; Jiménez-Espejo, F. ; McKay, R. ; Passchier, Sandra ; Pross, J. ; Riesselman, C. R. ; Rhl, U. ; Sangiorgi, F. ; Welsh, K. ; Klaus, A. ; Fehr, A. ; Bendle, J. A.P. ; Dunbar, R. ; Gonzlez, J. ; Hayden, T. ; Katsuki, K. ; Olney, M. P. ; Pekar, S. F. ; Shrivastava, P. K. ; Van De Flierdt, T. ; Williams, T. ; Yamane, M. / Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin : Constraints for paleoceanographic reconstruction. In: Paleoceanography. 2012 ; Vol. 27, No. 2.
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abstract = "The Integrated Ocean Drilling Program Expedition 318 to the Wilkes Land margin of Antarctica recovered a sedimentary succession ranging in age from lower Eocene to the Holocene. Excellent stratigraphic control is key to understanding the timing of paleoceanographic events through critical climate intervals. Drill sites recovered the lower and middle Eocene, nearly the entire Oligocene, the Miocene from about 17Ma, the entire Pliocene and much of the Pleistocene. The paleomagnetic properties are generally suitable for magnetostratigraphic interpretation, with well-behaved demagnetization diagrams, uniform distribution of declinations, and a clear separation into two inclination modes. Although the sequences were discontinuously recovered with many gaps due to coring, and there are hiatuses from sedimentary and tectonic processes, the magnetostratigraphic patterns are in general readily interpretable. Our interpretations are integrated with the diatom, radiolarian, calcareous nannofossils and dinoflagellate cyst (dinocyst) biostratigraphy. The magnetostratigraphy significantly improves the resolution of the chronostratigraphy, particularly in intervals with poor biostratigraphic control. However, Southern Ocean records with reliable magnetostratigraphies are notably scarce, and the data reported here provide an opportunity for improved calibration of the biostratigraphic records. In particular, we provide a rare magnetostratigraphic calibration for dinocyst biostratigraphy in the Paleogene and a substantially improved diatom calibration for the Pliocene. This paper presents the stratigraphic framework for future paleoceanographic proxy records which are being developed for the Wilkes Land margin cores. It further provides tight constraints on the duration of regional hiatuses inferred from seismic surveys of the region.",
author = "L. Tauxe and Stickley, {C. E.} and S. Sugisaki and Bijl, {P. K.} and Bohaty, {S. M.} and H. Brinkhuis and C. Escutia and Flores, {J. A.} and Houben, {A. J.P.} and M. Iwai and F. Jim{\'e}nez-Espejo and R. McKay and Sandra Passchier and J. Pross and Riesselman, {C. R.} and U. Rhl and F. Sangiorgi and K. Welsh and A. Klaus and A. Fehr and Bendle, {J. A.P.} and R. Dunbar and J. Gonzlez and T. Hayden and K. Katsuki and Olney, {M. P.} and Pekar, {S. F.} and Shrivastava, {P. K.} and {Van De Flierdt}, T. and T. Williams and M. Yamane",
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Tauxe, L, Stickley, CE, Sugisaki, S, Bijl, PK, Bohaty, SM, Brinkhuis, H, Escutia, C, Flores, JA, Houben, AJP, Iwai, M, Jiménez-Espejo, F, McKay, R, Passchier, S, Pross, J, Riesselman, CR, Rhl, U, Sangiorgi, F, Welsh, K, Klaus, A, Fehr, A, Bendle, JAP, Dunbar, R, Gonzlez, J, Hayden, T, Katsuki, K, Olney, MP, Pekar, SF, Shrivastava, PK, Van De Flierdt, T, Williams, T & Yamane, M 2012, 'Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin: Constraints for paleoceanographic reconstruction', Paleoceanography, vol. 27, no. 2, PA2214. https://doi.org/10.1029/2012PA002308

Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin : Constraints for paleoceanographic reconstruction. / Tauxe, L.; Stickley, C. E.; Sugisaki, S.; Bijl, P. K.; Bohaty, S. M.; Brinkhuis, H.; Escutia, C.; Flores, J. A.; Houben, A. J.P.; Iwai, M.; Jiménez-Espejo, F.; McKay, R.; Passchier, Sandra; Pross, J.; Riesselman, C. R.; Rhl, U.; Sangiorgi, F.; Welsh, K.; Klaus, A.; Fehr, A.; Bendle, J. A.P.; Dunbar, R.; Gonzlez, J.; Hayden, T.; Katsuki, K.; Olney, M. P.; Pekar, S. F.; Shrivastava, P. K.; Van De Flierdt, T.; Williams, T.; Yamane, M.

In: Paleoceanography, Vol. 27, No. 2, PA2214, 01.06.2012.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Chronostratigraphic framework for the IODP Expedition 318 cores from the Wilkes Land Margin

T2 - Constraints for paleoceanographic reconstruction

AU - Tauxe, L.

AU - Stickley, C. E.

AU - Sugisaki, S.

AU - Bijl, P. K.

AU - Bohaty, S. M.

AU - Brinkhuis, H.

AU - Escutia, C.

AU - Flores, J. A.

AU - Houben, A. J.P.

AU - Iwai, M.

AU - Jiménez-Espejo, F.

AU - McKay, R.

AU - Passchier, Sandra

AU - Pross, J.

AU - Riesselman, C. R.

AU - Rhl, U.

AU - Sangiorgi, F.

AU - Welsh, K.

AU - Klaus, A.

AU - Fehr, A.

AU - Bendle, J. A.P.

AU - Dunbar, R.

AU - Gonzlez, J.

AU - Hayden, T.

AU - Katsuki, K.

AU - Olney, M. P.

AU - Pekar, S. F.

AU - Shrivastava, P. K.

AU - Van De Flierdt, T.

AU - Williams, T.

AU - Yamane, M.

PY - 2012/6/1

Y1 - 2012/6/1

N2 - The Integrated Ocean Drilling Program Expedition 318 to the Wilkes Land margin of Antarctica recovered a sedimentary succession ranging in age from lower Eocene to the Holocene. Excellent stratigraphic control is key to understanding the timing of paleoceanographic events through critical climate intervals. Drill sites recovered the lower and middle Eocene, nearly the entire Oligocene, the Miocene from about 17Ma, the entire Pliocene and much of the Pleistocene. The paleomagnetic properties are generally suitable for magnetostratigraphic interpretation, with well-behaved demagnetization diagrams, uniform distribution of declinations, and a clear separation into two inclination modes. Although the sequences were discontinuously recovered with many gaps due to coring, and there are hiatuses from sedimentary and tectonic processes, the magnetostratigraphic patterns are in general readily interpretable. Our interpretations are integrated with the diatom, radiolarian, calcareous nannofossils and dinoflagellate cyst (dinocyst) biostratigraphy. The magnetostratigraphy significantly improves the resolution of the chronostratigraphy, particularly in intervals with poor biostratigraphic control. However, Southern Ocean records with reliable magnetostratigraphies are notably scarce, and the data reported here provide an opportunity for improved calibration of the biostratigraphic records. In particular, we provide a rare magnetostratigraphic calibration for dinocyst biostratigraphy in the Paleogene and a substantially improved diatom calibration for the Pliocene. This paper presents the stratigraphic framework for future paleoceanographic proxy records which are being developed for the Wilkes Land margin cores. It further provides tight constraints on the duration of regional hiatuses inferred from seismic surveys of the region.

AB - The Integrated Ocean Drilling Program Expedition 318 to the Wilkes Land margin of Antarctica recovered a sedimentary succession ranging in age from lower Eocene to the Holocene. Excellent stratigraphic control is key to understanding the timing of paleoceanographic events through critical climate intervals. Drill sites recovered the lower and middle Eocene, nearly the entire Oligocene, the Miocene from about 17Ma, the entire Pliocene and much of the Pleistocene. The paleomagnetic properties are generally suitable for magnetostratigraphic interpretation, with well-behaved demagnetization diagrams, uniform distribution of declinations, and a clear separation into two inclination modes. Although the sequences were discontinuously recovered with many gaps due to coring, and there are hiatuses from sedimentary and tectonic processes, the magnetostratigraphic patterns are in general readily interpretable. Our interpretations are integrated with the diatom, radiolarian, calcareous nannofossils and dinoflagellate cyst (dinocyst) biostratigraphy. The magnetostratigraphy significantly improves the resolution of the chronostratigraphy, particularly in intervals with poor biostratigraphic control. However, Southern Ocean records with reliable magnetostratigraphies are notably scarce, and the data reported here provide an opportunity for improved calibration of the biostratigraphic records. In particular, we provide a rare magnetostratigraphic calibration for dinocyst biostratigraphy in the Paleogene and a substantially improved diatom calibration for the Pliocene. This paper presents the stratigraphic framework for future paleoceanographic proxy records which are being developed for the Wilkes Land margin cores. It further provides tight constraints on the duration of regional hiatuses inferred from seismic surveys of the region.

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DO - 10.1029/2012PA002308

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