Hostname: page-component-84b7d79bbc-lrf7s Total loading time: 0 Render date: 2024-07-30T22:34:24.306Z Has data issue: false hasContentIssue false
  • English
  • Français

Plagioclase-Ca-rich-nepheline intergrowths in a syenite from the Marangudzi complex, Rhodesia

Published online by Cambridge University Press:  05 July 2018

C. M. B. Henderson  and
F. G. F. Gibb
C. M. B. Henderson
Affiliation:
Department of Geology, The University, Manchester M13 9PL, England
F. G. F. Gibb
Affiliation:
Department of Geology, The University, Manchester M13 9PL, England
Get access Rights & Permissions [Opens in a new window]

Summary

Nepheline in a basic syenite from the Marangudzi complex is relatively Ca-rich with CaO from 1·9 to 2·4 (wt) %. This Ca-rich nepheline sometimes occurs in intimate intergrowths with plagioclase (andesine). These intergrowths are thought to have formed at temperatures in the order of 750°–850°C by resorption of plagioclase with simultaneous replacement by nepheline.

Type
Research Article
Information
Mineralogical Magazine , Volume 38 , Issue 298 , June 1972 , pp. 670 - 677
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1972

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

Bannister, (F.A.) and Hey, (M.H.), 1931. Min. Mag. 22, 569.Google Scholar
Bowen, (N.L.), 1912. Amer. Journ. Sci. 33, 551-73.CrossRefGoogle Scholar
Carmichael, (I.S.E.), 1965. Min. Mag. 34, 107-25.Google Scholar
Davidson, (A.), 1970. Canad. Min. 10, 191-206.Google Scholar
Edgar, (A.D.), 1963. Unpublished Ph.D. Thesis, Univ. of ManchesterGoogle Scholar
Gummer, (W.K.) and Burr, (S.V.), 1946. Journ. Geol. 54, 137-68.CrossRefGoogle Scholar
Hamilton, (D.L.), 1961. Ibid. 69, 321- 9.Google Scholar
Hamilton, (D.L.), and Mackenzie, (W. S.), 1965 . Min. Mag. 34, 214-31.Google Scholar
Henderson, (C.M.B.), 1968. Papers Proc. 5th Gen. Meeting LM.A., Cambridge 1966. 291–304 .Google Scholar
Iiyama, (J.T.), 1966. Bull. Soc.franr Min. Crist. 89, 442-54.Google Scholar
Mackenzie, (W.S.) and Rahman, (S.), 1969. Amer, Journ. Sci. 267A, 391–406.Google Scholar
Perchuk, (L.L.) and Ryabchikov, (I.D.), 1968. Journ. Petr. 9, 123-67.CrossRefGoogle Scholar
Shand, (S.J.), 1946. Journ. Geol. 54, 398-401.CrossRefGoogle Scholar
Subbarao, (K.V.), 1969. Canad. Min. 9, 721-3.Google Scholar
Tilley, (C.E.), 1954. Amer. Journ. Sci. 254, 65-75.CrossRefGoogle Scholar
Tilley, (C.E.), 1957. Quart. Journ. Geol. Soc. 113, 323-60.CrossRefGoogle Scholar
Tilley, (C.E.), and Gittins, (J.), 1961. Journ. Petr. 2, 38-48.CrossRefGoogle Scholar
Wright, (T.L.) and Stewart, (D.B.), 1968. Amer. Min. 53, 38-87.Google Scholar