Caledonian metamorphism in part of northwest County Mayo, Ireland

✍ Scribed by M. D. Max

• Book ID: 102846648
• Publisher: John Wiley and Sons
• Year: 1973
• Tongue: English
• Weight: 631 KB
• Volume: 8
• Category: Article
• ISSN: 0072-1050
• DOI: 10.1002/gj.3350080213

✦ Synopsis

Abstract

Lewisian gneisses, Moinian and Dalradian sediments, and dolerites have been deformed and metamorphosed under Amphibolite Fades conditions. The metamorphic climax, with the growth of kyanite and staurolite, occurred after the cessation of the second deformational episode and before the onset of the third. Plagioclase growth ceased at or about the time of kyanite and staurolite nucleation.

Metamorphic effects become less to the south and southeast while the most advanced stages occur around Inver. A single heat pulse appears to be not directly related to any structure.