Abstract
PROF. L. H. AHRENS1 has proposed that the frequency distribution of silica from 440 granitic rocks of Japan can be described in terms of two distributions. This conclusion implies that Japanese rocks are made up of two distinct population types, each having different silica content characteristics. Prof. Ahrens also states that “no specific statistical type has yet been assigned to these negatively skewed distributions”.
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References
Ahrens, L. H., Nature, 198, 373 (1963).
Jizba, Z. V., Geochim. et Cosmochim., 16, 79 (1959).
Johnson, N. L., Biometrika, 36, 149 (1949).
Hatton, H., Nozawa, R., and Saito, M., Int. Geophys. Cong., Proc. Sect. 14, 40 (1960).
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JIZBA, Z. Negatively Skewed Distributions of Silica and Potassium in Igneous Rocks. Nature 201, 1313 (1964). https://doi.org/10.1038/2011313a0
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DOI: https://doi.org/10.1038/2011313a0
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