Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-13T01:53:02.248Z Has data issue: false hasContentIssue false
  • English
  • Français

The Inishdawros meta-peridotite, Callow, Ballyconneely, Connemara, Western Ireland

Published online by Cambridge University Press:  05 July 2018

A. A. Ahmed  and
B. E. Leake
A. A. Ahmed
Affiliation:
Department of Geology, Assiut University, Egypt
B. E. Leake
Affiliation:
Department of Geology, University, Glasgow G12 8QQ
Get access Rights & Permissions [Opens in a new window]

Summary

The chemistry and petrography of a meta-ultrabasic lens containing peridotite with poikilitic pyroxenes and hornblende, both of probable igneous origin, are given. The body also contains feldspathic-bearing hornblende meta-gabbros and is a tectonic fragment in hornblende-plagioclase rock belonging to the same Errismore intrusion. Chemical analyses fail to discern any appreciable systematic differentiation trend across the body despite modal variation to hornblende plagioclase layers. The high Niggli mg near the structural bottom of the intrusion suggests that this part of the Errismore intrusion is right way up, contrary to a previous suggestion.

Type
Research Article
Information
Mineralogical Magazine , Volume 42 , Issue 321 , March 1978 , pp. 69 - 74
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1978

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

Janardhanan, (A. S.) and Leake, (B. E.), 1975. J. Geol. Soc. India, 391 408.Google Scholar
Leake, (B. E.), 1958. Proc. R. Irish Acad. 59, B, 155–203.Google Scholar
Leake, (B. E.), 1970. The fragmentation of the Connemara basic and ultrabasic intrusion. In Mechanism of lgneous Intrusion, 103-22; eds. Newall, G. and Rast, N.. Seel House Press, Liverpool.Google Scholar
Morton, (W. H.), 1964. The petrology and structure of the basic igneous complex at Roundstone, Co. Galway. Ph.D. thesis, University of Manchester.Google Scholar
Wager, (L. R.), 1932. Proc. R. Irish Acad. 41, B, 46–72.Google Scholar