By: DrSadhbh
License: Creative Commons Attribution ⧉

Uploaded: 5 Aug 2022
Last Updated: 16 Feb 2023

259 megapixels
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Garnet amphibolite sill in schists, cross cut by granitic dike. This is next to Rosbeg Pier in Co Donegal, Ireland. WS Pitcher notes in his ‘Masterclass guide to the Granites of Donegal’ that the outcrop deserves further study, as the schists have been adinolized (Na-rich metasomatised) by the intrusion of the gabbro.