Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-26T05:55:22.107Z Has data issue: false hasContentIssue false
  • English
  • Français

Metamorphism and metasomatism of rocks of the Moine Series by a dolerite plug in Glenmore, Ardnamurchan (Plate XIX)

Published online by Cambridge University Press:  14 March 2018

B. C. M. Butler
B. C. M. Butler*
Affiliation:
Dept. of Geology and Mineralogy, University Museum, Oxford
Get access Rights & Permissions [Opens in a new window]

Summary

A small dolerite plug in Glenmore, Ardnamurchan, has metamorphosed and partially vitrified the adjacent Moine arkoses up to a distance of 6 ft. from the contact. Chemical analyses show that the glasses produced by the metamorphism have compositions close to the ternary minimum in the system NaAlSi3O8-KAlSi3O8-SiO2, indicating that they were formed by fractional fusion of a lowest-melting composition from the arkose. Alkali metasomatism in the metamorphosed arkoses resulted in an increase of Na2O and a decrease of K2O as the contact with the dolerite is approached, while an associated pelitic horizon shows an increase of K2O content. A review of other examples of thermal metamorphism of quartzo-feldspathic rocks by basic intrusions shows that movements of alkalis are very common in this type of environment, and the possible relations of the metasomatism and the fusion are discussed.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 32 , Issue 254 , September 1961 , pp. 866 - 897
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1961

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

Ackermann, (P. B.) and Walker, (F.), 1960. Quart. Journ. Geol. Soc., vol. 116, p. 239.CrossRefGoogle Scholar
Agrell, (S. O.), 1939. Min. Mag., vol. 25, p. 305.Google Scholar
Carmichael, (I. S. E.), 1960. Journ. Petrology, vol. l, p. 309.Google Scholar
Chayes, (F.), 1952. Amer. Min., vol. 37, p. 337.Google Scholar
Childe, (V. G.) and Thorneycroft, (W.), 1937. Proc. Soc. Antiquaries Scotland, vol. 72, p. 44.Google Scholar
Davidson, (C. F.), 1935. Trans. Roy. Soc. Edin., vol. 58, p. 375.Google Scholar
Davidson, (C. F.) 1936. Proc. Soc. Antiquaries Scotland, vol. 70, p. 448.Google Scholar
Davies, (R. G.), 1956. Geol. Mag., vol. 93, p. 153.Google Scholar
Day, (A. L.) and Allen, (E. T.), 1905. Amer. Journ. Sci., ser. 4, vol. 19, p. 93.Google Scholar
Elliott, (R. B.), 1956. Min. Mag., vol. 31, p. 245.Google Scholar
Flett, (J. S.), 1908. The geology of the country near Oban and Dalmally, Mem. Geol. Surv., p. 124.Google Scholar
Frankel, (J. J.), 1950. Trans. Roy. Soc. South Africa, vol. 32, p. 287.Google Scholar
Goldschmidt, (V. M.), 1914. Neues Jahrb. Min., Beil.-Bd. 39, p. 193.Google Scholar
Guppy, (E. M.) and Hawkes, (L.), 1925. Quart. Journ. Geol. Soc., vol. 81, p. 325.Google Scholar
Guppy, (E. M.) and Sabine, (P. A.), 1956. Chemical analyses of igneous rocks, metamorphic rocks and minerals, 1931-1954. Mem. Geol. Surv.Google Scholar
Hawkes, (L.) and Harwood, (H. F.), 1932. Min. Mag., vol. 23, p. 163.Google Scholar
Holmes, (A.), 1936. Min. Mag., vol. 24, p. 408.Google Scholar
Holmes, (A.) and Harwood, (H. F.), 1932. Quart. Journ. Geol. Soc., vol. 88, p. 370.Google Scholar
Kahma, (A.), 1951. Bull. Comm Géol. Finlande, vol. 26, p. 1.Google Scholar
Kennedy, (W. Q.), 1951. Geol. Mag., vol. 88, p. 257.Google Scholar
Knopf, (A.), 1938. Amer. Journ. Sci., ser. 5, vol. 36, p. 373.Google Scholar
Lacroix, (A.), 1893. Les enclaves des roches volcaniques, Ann. Acad. Mâcon vol. 10.Google Scholar
Larsen, (E. S.) and Switzer, (G.), 1939. Amer. Journ. Sci., vol. 237, p. 562.Google Scholar
McLintock, (W. F. P.), 1932. Min. Mag., vol. 23, p. 207.Google Scholar
Mountain, (E. D.), 1944. Trans. Geol. Soc. South Africa, vol. 47, p. 107.Google Scholar
Mountain, (E. D.) 1960. Ibid., in press.Google Scholar
Reynolds, (D. L.), 1937. Proc. Geol. Assoc., vol. 48, p. 247.Google Scholar
Reynolds, (D. L.) 1940. Geol. Mag., vol. 77, p. 461.Google Scholar
Reynolds, (D. L.) 1941. Quart. Journ. Geol. Soc., vol. 97, p. 1.Google Scholar
Richarz, (S.), 1924. Journ. Geol., Chicago, vol. 32, p. 685.CrossRefGoogle Scholar
Richey, (J. E.) et al., 1931. Summ. Progr. Geol. Surv., p. 63.Google Scholar
Richey, (J. E.) 1938. Summ. Progr. Geol. Surv., p. 71.Google Scholar
Ross, (C. S.) and Smith, (R. L.), 1955. Amer. Min., vol. 40, p. 1071.Google Scholar
Thomas, (H. H.), 1922. Quart. Journ. Geol. Soc., vol. 78, p. 229.Google Scholar
Tidmarsh, (W. G.), 1932. Quart. Journ. Geol. Soc., vol. 88, p. 712.Google Scholar
Tilley, (C. E.), 1957. Geol. Mag., vol. 94, p. 329.Google Scholar
Tuttle, (O. F.) and Bowen, (N. L.), 1958. Mem. Geol. Soc. Amer., vol. 74.Google Scholar
Tuttle, (O. F.) and England, (J. L.), 1955. Bull. Geol. Soc. Amer., vol. 66, p. 149.Google Scholar
Venkatesh, (V.), 1952. Amer. Min., vol. 37, p. 831.Google Scholar
Wager, (L. R.), Weedon, (D. S.), and Vincent, (E. A.), 1953. Min. Mag., vol. 30, p. 263.Google Scholar
Walker, (F.), 1935. Min. Mag., vol. 24, p. 131.Google Scholar
Walker, (F.) 1958. Trans. Edin. Geol. Soc., vol. 17, p. 113.Google Scholar
Walker, (F.) and Poldervaart, (A.), 1949. Bull. Geol. Soc. Amer., vol. 60, p. 591.CrossRefGoogle Scholar
Winkler, (H. G. F.), 1957. Geochimica Acta, vol. 13, p. 42.Google Scholar
Winkler, (H. G. F.) and von Platen, (H.), 1958. Ibid., vol. 15, p. 91.Google Scholar
Winkler, (H. G. F.) and von Platen, (H.) 1960. Ibid., vol. 18, p. 294.Google Scholar
Wyllie, (P. J.), 1959. Amer. Min., vol. 44, p. 1039.Google Scholar
Wyllie, (P. J.) 1961. Journ. Petrology, vol. 2, p. 1.Google Scholar