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Palaeomagnetism and the Globorotalia truncatulinoides Datum in the Tasman Sea and Southern Ocean

Abstract

THEYER1,2 recently presented palaeomagnetic and micropalaeontological data from four Eltanin sedimentary cores from the Tasman Sea and adjacent subantarctic region. His interpretation of these data, if accepted, would force re-evaluation, and even rejection, of several previous studies of the palaeo-oceanography of the Southern Ocean3–6, as well as late Cainozoic correlations in New Zealand7–11. Because of these serious implications, we wish to comment on the data which Theyer1 has presented, and on its interpretation. We believe that the conclusions presented1 are wrong.

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WATKINS, N., KENNETT, J. & VELLA, P. Palaeomagnetism and the Globorotalia truncatulinoides Datum in the Tasman Sea and Southern Ocean. Nature Physical Science 244, 45–47 (1973). https://doi.org/10.1038/physci244045a0

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