Subject ASC00014pj
The Quarterly journal of the Geological Society of London.
v.26 (1870), Page 152 (1870)
Smithsonian Libraries
BHL Page 39017689
Keywords
basalt iron-ore layers of earth island magee Section at Belumford geology UK iron ore Belumford section columnar basalt pisolitic iron-ore Bole Yellow Ochre Blue lithomarge Island Magee Section ferruginous ochre Lithomarge geologic section rock types strata Magee