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Published January 1991 | public
Journal Article

Atoll magnetostratigraphy: calibration of their eustatic records


Results of palaeomagnetic measurements of a core from Mururoa atoll, French Polynesia, led us to document for the first time the atoll's magnetostratigraphy. Periods of slow aggradation, correlated with sea-level low-stands, show that atolls are accurate recorders of sea level fluctuations. The timing and amplitude of sea level fluctuations may be reconstructed on the basis of precise dating of atolls and shallow-water platforms. Magnetostratigraphy is therefore a first step towards a quantitative calibration of the eustatic records of coral atolls.

Additional Information

© 1991 John Wiley & Sons, Inc. Manuscript received 24 July 1990; revision accepted 26 October 1990. Article first published online: 6 Jul. 2007. Thanks to the French CEA and colleagues Y. Caristan, J.-F. Sornein, D. Buigues for help and fruitful discussion, and to Terra reviewers, E.A. Hailwood and S.G. Robinson. This is a contribution # 4934 from the California Institute of Technology.

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