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Palaeomagnetism of Late Precambrian or Cambrian diorites from Leicestershire, U.K.

Published online by Cambridge University Press:  01 May 2009

B. A. Duff
B. A. Duff
Affiliation:
Department of Geology, Australian National University, PO Box 4, Canberra, A.C.T. 2600, Australia
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Summary

Af demagnetization of the Late Precambrian or Cambrian diorites of Leicestershire reveals at least two components of magnetization in sites with stable, coherent NRM. A high remanentcoercivity component yields a palaeomagnetic pole at 141° E 63° N (A959 = 9°) in agreement with results from other Late Precambrian or Cambrian rocks in North Wales and Norway. A softer component may be of recent viscous origin, or have been acquired during Cambrian remagnetization.

Type
Articles
Information
Geological Magazine , Volume 117 , Issue 5 , September 1980 , pp. 479 - 483
Copyright
Copyright © Cambridge University Press 1980

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References

Briden, J. C. 1972. A stability index of remanent magnetization. J. geophys. Res. 77, 1401–5.CrossRefGoogle Scholar
Cribb, S. J. 1975. Rubidium-strontium ages and strontium isotope ratios from the igneous rocks of Leicestershire. Jl geol. Soc. Lond. 131, 203–12.CrossRefGoogle Scholar
Fisher, R. A. 1953. Dispersion on a sphere. Proc. R. Soc. Lond. A 217, 295–305.Google Scholar
Hill, E. & Bonney, T. G. 1878. On the pre-Carboniferous rocks of Charnwood Forest. Q. Jl geol. Soc. Lond. 34, 199–239.Google Scholar
Lambert, R. St J. & Rex, D. C. 1966. Isotopic ages of minerals from the Precambrian complex of the Malverns. Nature, Lond. 209, 605–6.Google Scholar
Poorter, R. P. E. 1972. Preliminary palaeomagnetic results from the Fen Carbonatite complex, South Norway. Earth Planet. Sci. Lett. 17, 194–8.CrossRefGoogle Scholar
Watson, G. S. & Irving, E. 1957. Statistical methods in rock magnetism. Mon. Not. Roy. Astron. Soc. Geophys. Supp. 7, 289–300.Google Scholar