Subject ASC00012ob
The Quarterly journal of the Geological Society of London.
v.50 (1894), Page 582 (1894)
Smithsonian Libraries
BHL Page 39089384
Keywords
geology geological section railway Llyn Padarn Wales lake moraine-dammed lake Snowdonia Geology cross section rock types crosssection cross-section diagrammatic section Railway Cambrian bed post-Llanberis bed quartz-felsite greenstone conglomerate slate grits argillite faults Greenstone dyke Cambrian post-Llanberis beds