Premium
Low‐grade metamorphism within the Welsh sector of the paratectonic Caledonides
Author(s) -
Bevins R. E.,
Rowbotham G.
Publication year - 1983
Publication title -
geological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.721
H-Index - 54
eISSN - 1099-1034
pISSN - 0072-1050
DOI - 10.1002/gj.3350180206
Subject(s) - metamorphism , conodont , geology , geochemistry , facies , metamorphic facies , welsh , paleontology , archaeology , geography , biostratigraphy , structural basin
Mineral assemblages within metabasites from the paratectonic Caledonides of Wales show that the grade of metamorphism was predominantly within the prehnite‐pumpellyite facies, although green‐schist fades assemblages occur in the more central parts of the region. General agreement with this pattern of metamorphism is seen in recent studies of illite crystallinity and conodont colour. Comparison with other regions suggests that all of the paratectonic Caledonides of the British Isles has suffered a low‐grade of regional metamorphism during late Caledonian times.