Subject ASC0000zlp
The Quarterly journal of the Geological Society of London.
v.37 (1881), Page 159 (1881)
Smithsonian Libraries
BHL Page 43971369
Keywords
Digram cross-section Central Wales Metalliferous slates Rhyader pale slates Aberystwyth grits Plynlimmon grits Geology central wales wales rhyader plynlimmon aberystwyth mid wales slates Wales Plynlimmon Rhyader Aberystwyth geology