TY  - SER
AU  - Dewey, J. F. 
TI  - A Note Concerning the Age of the Metamorphism of the Dalradian Rocks of Western Ireland
KW  - Dalradian rocks - Western Europe
KW  - Petrology - Western Europe
N2  - Abstract
Evidence is adduced to relate the published minimum absolute date of — 475 m.y., for the metamorphism of the Connemara Schists, to its correct position in the Lower Palaeozoic stratigraphy of Western Ireland. The metamorphism pre-dates the Didymograptus extensus zone of the Arenig in Connemara and South Mayo and an Upper Cambrian or Tremadocian age is considered likely
ER  -