Abstract
DURING the past few years there has been active interest in the problem of alternative explanations other than layers of different composition in the Earth to explain seismic data. The most important of these arises from an early suggestion by Bernal1 regarding the possible inversion of the orthorhombic mineral olivine to a dense form with the spinel structure. An actual example of this inversion from the spinel to the olivine had been reported by Goldschmidt2 for the compound Mg2GeO4. However, there have always been some doubts regarding this observation, since it was mentioned only in a footnote and could not be repeated.
Similar content being viewed by others
Article PDF
References
Bernal, J. D., Geophys. Dis. Roy. Astro. Soc., No. 748, 267 (1936).
Goldschmidt, V. M., Nacht. Gesell. Wissensch. Göttingen, Math. Phys. Kl., Fachgr. IV, Bd. 1, 184, 190 (1931).
Urey, H. C., “The Planets”, 69 (Yale University Press, New Haven, 1952). Romeijn, F. C., Phillips Res. Rep., 8, 321 (1953). Bertaut, E. F., Durif-Varambon, A., and Pauthenet, E., “Propriétés Cristallographiques et Magnétique de Quelques Nouvelles Séries de Spinelles Mistes”, Third Int. Cong. Cryst., Paris (1954). Ringwood, A. E., Amer. J. Sci., 254, No. 11, 707 (1956).
Roy, D. M., and Roy, R., Amer. Min., 39, 957 (1954).
Dachille, F., and Roy, R., Bull. Geol. Soc. Amer., 67, 1682 (1956) (Abstract).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
DACHILLE, F., ROY, R. The Spinel–Olivine Inversion in Mg2GeO4 . Nature 183, 1257 (1959). https://doi.org/10.1038/1831257a0
Issue Date:
DOI: https://doi.org/10.1038/1831257a0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.