Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-22T06:21:57.484Z Has data issue: false hasContentIssue false
  • English
  • Français

The Nomenclature of the Spilitic Suite. Part I: The Keratophyric Rocks

Published online by Cambridge University Press:  01 May 2009

Alfred Kingsley Wells
Get access Rights & Permissions [Opens in a new window]

Extract

The petrologist who attempts the systematic investigation of igneous rocks is unfortunately too familiar with the difficulty of naming the rocks examined. The discovery of a border-line type necessitates a choice of two alternatives: either the introduction of a new name to a science already overburdened with such, or the widening of the definition of the nearest established type to include the newly described rock. The decision is no easy one to make, especially if the petrographer is young and eager for the transient fame won by the discovery of something new. In such a case the temptation to create a new name is very strong. As a result, both student and teacher spend tedious hours in trying to discover differences between rocks bearing different names, differences which, however, have been magnified out of all proportion to their importance as diagnostic characters.

Type
Original Articles
Information
Geological Magazine , Volume 59 , Issue 8 , August 1922 , pp. 346 - 354
Copyright
Copyright © Cambridge University Press 1922

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

page 347 note 1 Hatch, , Text Book of Petrology, part i, Igneous Rocks, 1913, p. 223.Google Scholar

page 347 note 2 Harker, , Petrology for Students, 5th ed., p. 117.Google Scholar

page 347 note 3 Cox, , Rep. Brit. Assoc. Birmingham, 1913, p. 496.Google Scholar

page 347 note 4 Gümbel, , Die paläolithischen Eruptivgesteine der Fichtelgebirge, 1884, p. 45.Google Scholar

page 348 note 1 Lossen, , Jahrb. k. preuss. Geol. Landesanst. fur 1884 (1885), p. 21.Google Scholar

page 348 note 2 Teall, , British Petrography, 1888, p. 369.Google Scholar

page 348 note 3 Flett, , “Geol. of the Country around Newton Abbot”: Mem. Geol. Surv., 1913, p. 57.Google Scholar

page 348 note 4 Hatch, , GEOL. MAG., 1889, p. 70.Google Scholar

page 348 note 5 Thomas, , Quart. Journ. Geol. Soc., vol. lxvii, 1911, p. 193.Google Scholar

page 349 note 1 Thomas, , Quart. Journ. Oeol. Soc., vol. lxvii, 1911, p. 214.Google Scholar

page 349 note 2 Cox, , Rep. Brit. Assoc. Birmingham, 1913, p. 496; also Quart. Journ. Geol. Soc., vol. lxii, 1915, p. 316.Google Scholar

page 349 note 3 Heddle, , Min. Mag., 1884, p. 141.Google Scholar

page 349 note 4 “Geology of the Lizard and Meneage”: Mem. Geol. Surv., 1912, p. 186.Google Scholar

page 349 note 5 “Geology of Knapdale, etc.”: Mem. Geol. Surv., 1911, pp. 93 and 94.Google Scholar

page 349 note 6 Geology of the, South Wales Coalfield, part ii, Milford, p. 41Google Scholar

page 349 note 7 Proc. Liverpool Geol. Soc., 1915, p. 79.Google Scholar

page 350 note 1 Brögger, , Quart. Journ. Geol. Soc.., vol. 1, 1894, p. 23.Google Scholar

page 350 note 2 Elsden, , Quart. Journ. Geol. Soc., vol. lxi, 1905, p. 594.Google Scholar

page 350 note 3 Reynolds, , & Gardiner, , Quart. Journ. Geol. Soc., vol. lxviii, 1912, p. 92.Google Scholar

page 350 note 4 Cox, , Quart. Journ. Geol Soc., vol. lxxi, 1915, pp. 312–14.Google Scholar

page 350 note 5 Harker, , Nat. Hist. Igneous Rocks, 1909, p. 369.Google Scholar

page 350 note 6 Crook, , Min. Mag., vol. xvii, 1914, p. 72.Google Scholar

page 350 note 7 Cox, , Rep. Brit. Assoc. Birmingham, 1913, p. 496; and Dewey & Flett, Geol. Mag., 1911, p. 207.Google Scholar

page 351 note 1 “Geology of Knapdale, etc.”: Mem. Geol. Surv., 1911, pp. 92–3.Google Scholar

page 351 note 2 Geology of the South Wales Coalfield, part xi, Haverfordwest, p. 6.Google Scholar

page 351 note 3 Ibid., p. 22.

page 353 note 1 Washington, Chemical Analyses of Igneous Rocks, p. 146.Google Scholar

page 353 note 2 Iddings, Igneous Rocks, vol. ii, p. 160.Google Scholar

page 353 note 3 Report on British Petrographic Nomenclature, 1921, p. 144 (see “trachyte”).Google Scholar

page 353 note 4 Hatch, , Text Book of Petrology, part i, Igneous Rocks, 1913, p. 239.Google Scholar