Palaeoproterozoic prograde metasomatic-metamorphic overprint zones in Archean tonalitic gneisses, eastern Finland

• Published in: Bulletin of the Geological Society of Finland
• Main Authors: M. Pajunen, M. Poutiainen
• Format: Article in Journal/Newspaper
• Language: English
• Published: Geological Society of Finland 1999
• Subjects: Archean; Paleoproterozoic; tectonics; reactivation; overprint; metamorphism; metasomatism; P-T path; mineral reaction; fluids; fluid inclusions; kyanite; cordierite; xenotime; U/Pb age; eastern Finland; Geology; QE1-996.5; Kainuu; karelia*
• Online Access: https://doi.org/10.17741/bgsf/71.1.005; https://doaj.org/article/ca41137158b3426f902a3dd45525cf77

Several occurrences of coarse-grained kyanite rocks are exposed in the Archaean area of eastern Finland in zones trending predominantly northwest-southeast that crosscut all the Archaean structures and, locally, the Palaeoproterozoic metadiabase dykes, too. Their metamorphic history illustrates vivi...