Hostname: page-component-7dd5485656-kp629 Total loading time: 0 Render date: 2025-10-31T11:59:26.906Z Has data issue: false hasContentIssue false
  • English
  • Français

Some curious garnet clusters from the Garnetiferous Beds of the Leinster Granite Aureole

Published online by Cambridge University Press:  01 May 2009

P. S. Kennan
P. S. Kennan*
Affiliation:
Geology Department, University College, Dublin 4
Get access Rights & Permissions [Opens in a new window]

Summary

Hollow, often ellipsoidal, clusters of small manganiferous garnets are described. They occur as discrete entities in the normal garnet–quartz coticule fabric of the Garnetiferous Beds, an important group of metamorphosed manganese-rich sediments found within the aureole of the Leinster Granite. The clusters are thought to represent small original sedimentary concretions, subsequently completely reconstituted.

Information

Type
Research Article
Information
Geological Magazine , Volume 109 , Issue 2 , March 1972 , pp. 165 - 170
Copyright
Copyright © Cambridge University Press 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.)

Article purchase

Temporarily unavailable

References

Brindley, J. C. 1954. The Garnetiferous Beds of the Leinster Granite aureole and their small-scale structures. Scient. Proc. R. Dubl. Soc. 26, 245–62.Google Scholar
Brindley, J. C. 1957. The Aureole Rocks of the Leinster Granite in South Dublin, Ireland. Proc. R. Ir. Acad. 59, 1–18.Google Scholar
Clifford, T. N. 1960. Spessartite and magnesian biotite in coticule-bearing rocks from Mill Hollow, Alstead Township, New Hampshire, U.S.A. Neues Jb. Miner. Abh. 94, 1369–1400.Google Scholar
Kennan, P. S. 1971. Porphyroblast rotation and the kinematic analysis of a small fold. Geol. Mag. 108, 221–8.CrossRefGoogle Scholar
Schiller, E. A. & Taylor, F. C. 1965. Spessartite–quartz rocks (coticules) from Nova Scotia. Am. Miner. 50, 1477–81.Google Scholar
Smith, W. E. 1957. Pyrite nodules in the Hythe Beds of the Tilburstow Hill Area, Surrey. Proc. Geol. Ass. 68, 45–52.CrossRefGoogle Scholar
Woodland, A. W. 1939. The petrography and petrology of the Lower Cambrian Manganese Ore of West Merionethshire. Q. Jl geol. Soc. Lond. 95, 1–35.Google Scholar