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III.—The Principle of Saturation in Petrography

Published online by Cambridge University Press:  01 May 2009

S. J. Shand
Affiliation:
Professor of Geology, Victoria College, Stellenbosch, South Africa.

Extract

In a recent number of this journal I advocated the systematic employment of a certain criterion in connexion with the classification and nomenclature of igneous rocks, that criterion being the ‘saturated’ or ‘unsaturated’ character of the minerals constituting a given rock. The terms saturated, unsaturated, and their derivatives oversaturated, undersaturated, and partsaturated, were not used in a strict chemical sense, but in a special mineralogical sense which was fully explained.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1914

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References

page 485 note 1 Geol. Mag., November, 1913, pp. 508–14.

page 486 note 1 Geol. Mag., July, 1914, p. 319.

page 488 note 1 Rock Minerals, 1911.

page 488 note 2 Tschermaks Min. Pet. Mitt., xix et seq.

page 488 note 3 Cf. Cross in The Quantitative Classification of Igneous Rocks.

page 488 note 4 Igneous Rocks, vol. ii, 1913.

page 488 note 1 Text-book of Petrology, 1909, 1914.

page 488 note 2 Journal of Geology, xxi, 1913.

page 491 note 1 Les Enclaves des Roches Volcaniques, p. 43.

page 491 note 2 Geol. Mag., November, 1913.

page 491 note 3 Ibid., July, 1909, p. 299.

page 491 note 4 Cited by Lacroix, loc. cit., p. 498.

page 491 note 5 Amer. Journ. Sci., xxxvii, and Zeit. Anorg. Chem., lxxxvii, 1914.

page 492 note 1 Recherches sur l'exhalaison volcanique, ch. vi.

page 492 note 2 R. B. Sosman & H. E. Merwin, Journ. Washington Acad. Sci., 1913.

page 492 note 3 Die Gesetze der Gesteinsmetamorphose, Christiania, 1912.

page 492 note 4 Igneous Rocks, vol. ii, 1913.

page 492 note 5 Journal of Geology, 1914.