Subject ASC0001402
The Quarterly journal of the Geological Society of London.
v.29 (1873), Page 40 (1873)
Smithsonian Libraries
BHL Page 39050886
Keywords
Section northern Ramsey Island Lingula-flags Tremadoc Arenig Fault section geology strata cross-section lingula-flags tremadoc rocks arenig rocks fault Tremadoc rocks Arenig rocks stratigraphy ramsey island