Subject ASC00026ab
The Quarterly journal of the Geological Society of London.
v.4 (1848), Page 199 (1848)
Smithsonian Libraries
BHL Page 37048680
Keywords
Cheviot Porphyry Sandstone Greywacke cheviot porphyry sandstone rock greywacke strata layer earth cross esction section scotland mountain Landscape Geology rocks sediment Geological society