Subject ASC0000zx3
The Quarterly journal of the Geological Society of London.
v.58 (1902), Page 672 (1902)
Smithsonian Libraries
BHL Page 41676195
Keywords
granite vein diorite Craig-yr-Allor foliation plutonic complex central anglesey granite phenocrysts hornblende black mica fluxion structure vein foliated crag plutonic complex central Anglesey island Wales fossil rock