Hydrothermal fluid pathways at the contact of the Beinn an Dubhaich epigranite, Isle of Skye

摘要: Synopsis Field observations and Sr Pb isotopic evidence point to the existence of two phases hydrothermal activity at margin Beinn an Dubhaich epigranite. An early flux magmatic fluids carried outwards from granite, passing along major channels in Durness Limestone form skarn deposits, but not penetrating into body rock. A later inward meteoric limestone margins where it penetrated small cooling joints grain boundaries, causing minor contamination.