Subject ASC0003th2
The geological magazine, or, Monthly journal of geology.
Decade 3:v. 9 (1892), Page 387 (1864)
Smithsonian Libraries
BHL Page 30858473
Keywords
map south russia orel mountain archaean carboniferous permian cretaceous jurrasic granite gneiss shale sandstone limestone boundary tertiary South Russia geology Russia Tchernigof Kursk Voronesh Poltava Ekate rinoslav. south russia