Subject ASC0001djz
The Quarterly journal of the Geological Society of London.
v.49 (1893), Page 444 (1893)
Natural History Museum Library, London
BHL Page 45959084
Keywords
section Mineral railway cross-section chart Llyn Padarn minerals mineral Felsitc Greenstone Conglomerate Unconformable Halleflinta Grit Slate-breccia Felsitic Rock geology conglomerate felsite greenstone dyke Caernarvonshire. Section along the mineral railway north east of Llyn Padarn