Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-24T04:08:42.604Z Has data issue: false hasContentIssue false

The Northern Aureole of the Ardara Pluton of County Donegal

Published online by Cambridge University Press:  01 May 2009

M. K. Akaad
Affiliation:
Department of Geology, Imperial College, London, S.W. 7.

Abstract

The contact aureole on the northern side of the Ardara granitic pluton is made up of an outer part where contact effects are slight, and an inner part in which a broad zone of andalusite hornfelses is succeeded towards the contact by a narrower zone of sillimanite hornfelses. The textures of the hornfelses indicate that several phases of recrystallization, some of them associated with phases of movement, took place during contact metamorphism. Certain phases can be correlated with particular episodes in the evolution of the pluton itself.

Type
Articles
Copyright
Copyright © Cambridge University Press 1956

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

Akaad, M. K., 1956. The Ardara Granitic Diapir of County Donegal, Ireland. Proc. Geol. Soc. (Quart. Journ. Geol. Soc., in the press).Google Scholar
Iyengar, S. V. P., Pitcher, W. S. and Read, H. H., 1954. The plutonic history of the Maas Area, Co. Donegal. Quart. Journ. Geol. Soc., cx, 203230.CrossRefGoogle Scholar
MacDonald, G. A. and Merriam, R., 1938. Andalusite in Pegmatite from Fresno County, California. Amer. Min., xxiii, 588594.Google Scholar
Read, H. H., 1923. The Geology of the Country round Banff, Huntly, and Turriff. Mem. Geol. Surv. Scotland.Google Scholar
Read, H. H. 1933. On Quartz-Kyanite Rocks in Unst, Shetland Islands, and their bearing on Metamorphic Differentiation. Miner. Mag., xxiii, 317338.Google Scholar
Read, H. H. 1936. The Stratigraphical Order of the Dalradian Rocks of the Banffshire Coast. Geol. Mag., lxxiii, 468476.CrossRefGoogle Scholar