Hostname: page-component-77c89778f8-n9wrp Total loading time: 0 Render date: 2024-07-21T07:28:23.286Z Has data issue: false hasContentIssue false
  • English
  • Français

Progressive Replacement of Limestone Inclusions in Granite at Ballynacarrick, Co. Donegal

Published online by Cambridge University Press:  01 May 2009

Amin R. Gindy
Amin R. Gindy
Affiliation:
Department of Geology, Imperial College, London, S.W. 7.
Get access Rights & Permissions [Opens in a new window]

Abstract

Limestone inclusions in granite show a skarn armour made up of definite mineral zones. From the limestone side these are in order: grossular zone (with or without idocrase), clinozoisite zone, plagio-clase-pyroxene zone, and finally a hornblendic or dioritic zone that passes into the biotite-granite or granodiorite of the district. These different zones were not static but moved into the limestone, each zone replacing the one preceding it and being replaced by the zone following it. A mechanism by which limestone inclusions disappear in granite is clearly exemplified.

Type
Articles
Information
Geological Magazine , Volume 90 , Issue 3 , June 1953 , pp. 152 - 158
Copyright
Copyright © Cambridge University Press 1953

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

REFERENCES

Gindy, A. R., 1952. The plutonic history of the region around Trawenagh Bay, County Donegal, Eire. Abstr. Proc. Geol. Soc., No. 1482, 8th 02, p. 30.Google Scholar
Joplin, G. A., 1935. Diorite-limestone reaction at Ben Bullen, New South Wales; a study in contamination. Geol. Mag., lxxii, 97.CrossRefGoogle Scholar
McConnell, D., 1939. Note on the chemical similarity of idocrase and certain garnets. Amer. Min., xxiv, 62.Google Scholar
Pitcher, W. S., 1950. Calc-silicate skarn veins in the limestone of Lough Anure, Co. Donegal. Miner. Mag., xxix, 126.Google Scholar