Ordovician (Caradoc) marginal basin volcanism in Snowdonia (north-west Wales)
By: M.F. Howells, A.J. Reedman and S.D.G. Campbell.
Contributors: Reedman, Anthony John.; Campbell, S. D. G.; British Geological Survey.
Publisher: HMSO
Published: 1991
Place of publication: London
Language: eng
Number of pages: 191
Subjects: Geology, Stratigraphic -- Ordovician.; Volcanic ash, tuff, etc. -- Wales -- Snowdonia.; Geology -- Wales -- Snowdonia.
Notes: Includes bibliographical references (p. 168-176) and index.
At head of title: British Geological Survey.