Summary
This paper contains a summary of all the published palaeomagnetic observations from rocks of Pre-Tertiary age.
Evidence is produced which shows that the ancient latitude deduced from the palaeomagnetic observations in several regions of the world, is similar to the latitude indicated for these same regions by palaeoclimatology. Thus it is reasonable to suppose that the magnetic and rotational axes of the Earth have approximately coincided since the Palaeozoic, as they are known to have done during the past 20 million years.
On the basis of this assumption two further points are made:
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1)
In Pre-Tertiary times the pole was a great distance away from the present position, but the pole positions given by data from Pre-Tertiary rocks from four continents do not agree one with another.
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2)
Although the palaeomagnetic and palaeoclimatic observations from thesame region agree, this is not so when palaeomagnetic observations from one region are compared against palaeoclimatic evidence from a distant region.
Both these results suggest that prior to Tertiary times the pole has not only shifted its position with respect to certain land-masses, but also that these land-masses have moved relative to one another.
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References
Bullard, E. C.:The Magnetic Field within the Earth, Proc. Roy. Soc. A., vol. 147, p. 433.
Runcorn, S. K.:The Earth’s Core, Trans. Amer. Geophys. Union, vol. 35, No 1, pp. 49–63 (1954).
Gold, T.:Instability of the Earth’s axis of Rotation Nature, vol. 175, pp. 526–529 (1955).
Fisher, R. A.:Dispersion on a sphere, Proc. Roy. Soc. A., vol. 217, pp. 295–306 (1953).
Runcorn, S.Rock magnetism-Geophysical aspects, Advances in Physics, suppl. Phil. Mag., vol. 4, No 14, pp. 244–291 (1955).
Neel, L.:L’inversion de l’aimantation permanente des roches, Ann. Geophys., vol. 7, pp. 90–102 (1951).
Graham, J. W.:The stability and significance of magnetism in sedimentary rocks, J. Geophys. Res., vol. 54, No 2, pp. 131–167 (1949)
Hospers, J.:Rock magnetism and polar wandering, J. Geol., vol. 63, No 1, pp. 59–73 (1955).
Chevallier, R.:L’aimantation des laves de l’Etna, Ann. de Phys., Paris (10) vol. 4, pp. 5–162 (1925).
Roche, A.:Sur les inversions de l’aimantation remanentes des roches volcaniques dans les monts d’Auvergne, C. R. Acad. Sci., Paris, vol. 233, pp. 1132–1134 (1951).
Bruckshaw, J. M. &Robertson, E. I.:The magnetic properties of tholeiitic dykes of N.W. England, Mon. Not. Roy. Astr. Soc. Geophys. Sup., vol. 5, pp. 308–320 (1949).
Bruckshaw, J. M. &Vincenz, S. A.:The permanent magnetisation of the Mull lavas, Mon. Not. Roy. Soc. Geophys. Sup., vol. 6, pp. 579–589 (1954).
Hospers, J. &Charlesworth, H. A. K.:The natural permanent magnetism of the Lower Tertiary basalts of Northern Ireland, Mon. Not. Roy. Astr. Soc. Geophys. Suppl., vol. 7, No 1, pp. 32–43 (1954).
Roche, A.:Sur les caractères magnétiques du system éruptif de Gergovie, C. R. Acad. Sci., Paris, vol. 230, pp. 113–115 (1950).
Clegg, J. A., Almond, M. &Stubbs, P. H. S.:The remanent magnetisation of some sedimentary rocks in Britain, Phil. Mag., Ser. 7, vol. 45, pp. 583–598 (1954).
Creer, K. M., Irving. E. & Runcorn, S. K.:The direction of the geomagnetic field in remote epochs in Great Britain, J. Geomagn. Geoelec, vol. 6. No. 4, (1954).
Whittard, N. F.:The Geology of South Shropshire, Proc. Geol. Assoc., vol. 63, p. 143 (1952).
Irving, E.:The palaeomagnetism of the Torridonian sandstone series, Thesis, Cambridge (1954).
Runcorn, S. K.:Palaeomagnetism of sediments from the Colorado Plateau, Nature, vol. 176, p. 505 (1955).
Graham, J. W.:Evidence of polar shift since Triassic times, J. Geophys. Res., vol. 6, No 3, p. 329 (1955).
Doell, R. R.:Palaeomagnetic study of rocks from the Grand Canyon of the Colorado river, Nature, vol. 176, No 4494, p. 1167 (1955).
Day, A. A. &Runcorn, S. K.:Polar wandering — Report of discussion in Cambridge, Nature, vol. 67, No 4479, pp. 422–426 (1955).
Jaeger, J. C. &Joplin, G.:Rock magnetism and the differentiation of a dolerite sill, J. Geol. Soc. Aust., vol. 2, pp. 1–19 (1955).
Irving, E.:The magnetisation of the Tasmanian dolerites, Proc. Roy. Soc. Tasmania, vol. 90 (1956).
Graham J. W.:Changes of ferromagnetic minerals and their bearing on the magnetic properties of rocks, J. Geophys. Res., vol. 58, No 2, pp. 243–260 (1953).
du Bois, P. M.:Palaeomagnetic measurements of the Keweenawan. Nature, vol. 176, p. 506 (1955).
Anderson, E. M.:The geology of the schists of the Schichallion district, Quart. J. Geol. Soc., vol. 79, p. 423 (1923).
Dunbar, C. O.:Historical geology, John Wiley, New York (1949).
David, T. W. E.:Geology of the Commonwealth of Australia, Arnold, London (1950).
Whitehouse, F. W.:Cretaceous Ammonoids of Eastern Australia, Mem. Qld. Mus., vol. 5, p. 195 (1926).
Du Toit, A. L.,Our wandering continents. Oliver & Boyd, London (1937).
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Mr. E.Irving, Australian National University,Canberra, A.C.T. (Australia).
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Irving, E. Palaeomagnetic and palaeoclimatological aspects of polar wandering. Geofisica Pura e Applicata 33, 23–41 (1956). https://doi.org/10.1007/BF02629944
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DOI: https://doi.org/10.1007/BF02629944