Abstract
THE palæomagnetism of the dyke system radiating outward in a south-easterly direction from the large Pilansberg eruptive centre has been studied by Gough1. The basic parts of the dykes show a high magnetic consistency and, on the assumption of a geocentric dipole field, place the north magnetic pole in latitude 7½° N., longitude 47½° E. at the time of cooling. This time has always been inferred from surrounding systems, themselves not dated by radioactive methods.
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References
Gough, D. I., Mon. Not. Roy. Astro. Soc., 7, 1956 (1956).
Cooke, H. B. S., South African J. Sci., 50, 123 (1953).
Schreiner, G. D. L., Proc. Roy. Soc., A (in the press).
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SCHREINER, G. Age of a Pilansberg Dyke of Palæomagnetic Significance. Nature 181, 1330–1331 (1958). https://doi.org/10.1038/1811330b0
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DOI: https://doi.org/10.1038/1811330b0
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