Abstract
Basalts, radiometrically dated at 263 ± 5 m.y., have stable remanent magnetization with normal polarity. This demonstrates the existence of a previously unrecognized event within the Late Palaeozoic Interval of reversed geomagnetic polarity.
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CREER, K., MITCHELL, J. & VALENCIO, D. Evidence for a Normal Geomagnetic Field Polarity Event at 263 ± 5 m.y. BP within the Late Palaeozoic Reversed Interval. Nature Physical Science 233, 87–89 (1971). https://doi.org/10.1038/physci233087a0
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DOI: https://doi.org/10.1038/physci233087a0
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