Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-29T03:18:38.719Z Has data issue: false hasContentIssue false
  • English
  • Français

The problem of the potash-rich basaltic rocks

Published online by Cambridge University Press:  14 March 2018

Germaine A. Joplin
Germaine A. Joplin*
Affiliation:
Department of Geophysics, Australian National University
Get access Rights & Permissions [Opens in a new window]

Summary

It is suggested that the name shoshonite be revived for a group of potash-rich basalts and that the magma from which monzonites, potash-rich syenites, many lamprophyres, nepheline monzonites, shonkinites, eovites, ijolites, leucite basalts, leucitophyres, etc., have crystallized be called the shoshonite magma-type. This series shows parallels with the alkali basalt magma series, and the question of the relation of the two magma-types is discussed.

The name latite is discussed and rejected as a name for this potash-rich magma type. It is further shown that rocks of this composition invade geosynelinal regions that have been recently stabilized, one group of shoshonites being associated with an environment that is still subjected to minor folding and showing some relation to the cale-alkaline rocks, the other a true alkaline suite associated with non-orogenic conditions.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 34 , Issue 268 , 1965 , pp. 266 - 275
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1965

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

Bowen, (N.L.), 1928. The evolution of the igneous rocks, fig. 59. Princeton Univ. Press, Princeton.Google Scholar
Brown, (I.A.), 1930. Proc. Linn. Soc. N.S.W., vol 55, p. 637.Google Scholar
Card, (G.W.) and Jaquet, (J.B.), 1903. Rec. Geol. Surv. N.S.W., vol. 7, p. 103.Google Scholar
Edwalcds, (A.B.), 1947. Proc. Roy. Soe. Vie., N.s., vol. 58, p. 81.Google Scholar
Evernden, (J.P.) and Richards, (J.R.), 1962. Journ. Geol. Soc. Aust., vol. 9, p.1.Google Scholar
Harper, (L.F.), 1919. Mere. Geol. Surv. N.S.W., vol. 7, p. 290.Google Scholar
Hills, (E.S.), 1959. Sonder. Geol. Rund., vol. 47, p. 543.Google Scholar
Iddings, (J.P.), 1895. Journ. Geol., vol. 3, p. 935.Google Scholar
Iddings, (J.P.), 1913. Igneous rocks, vol. 2. Wiley & Sons, New York.Google Scholar
Jaquet, (J.B.), Card, (G.W.), and Harper, (L.F.), 1905. Rec. Geol. Surv. N.S.W., vol. 8, p. 14.Google Scholar
Johannsen, (A.), 1931. A descriptive petrography of the igneous rocks, I. Chicago Univ. Press.Google Scholar
Joplin, (G.A.), 1958. Journ. Roy. Soc. N.S.W., vol. 91, p. 120.Google Scholar
Joplin, (G.A.), 1964. A petrography of Australian igneous rocks. Angus & Robertson, Sydney.Google Scholar
Larsen, (E.S.), 1940. Bull. Geol. Soc. Amer., vol. 51, p. 887.Google Scholar
Muir, (I.D.) and Tilley, (C.E.), 1961. Journ. Geol., vol. 69, p. 186.Google Scholar
Nockolds, (S.R.), 1954. Bull. Geol. Soe. Amer., vol. 65, p. 1007.Google Scholar
Nockolds, (S.R.), and Allen, (R.), 1953. Geochim. Cosmochim. Acta, vol. 4, p. 105.Google Scholar
Nockolds, (S.R.), 1954. Ibid., vol. 5, p. 245.Google Scholar
Ogilvie Gordon, (M.), 1903. Trans. Roy. Soe. Edin., vol. 8, p. 175.Google Scholar
Ransome, (F.L.), 1898. Amer. Journ. Sei., 4th series, vol. 5, p. 355.Google Scholar
Thom, (W. T., Jr.), 1955. Geol. Soc. Amer. Spee. Paper 62, p. 374.Google Scholar
Voisey, (A.H.), 1959. Aust. Journ. Sci., vol. 22, p. 193.Google Scholar
Washington, (H.S.), 1897. Journ Geol., vol. 4, p. 35.Google Scholar