Koto : Nepheline-basalt. 



Jour. Sei. Coll. Vol. XXXII. Art. 6. PI. II. 



GEOLOGIC MAP OF THE YINGEMEN AREA 



HEI-\IU GOLD FIELD s„u^^ «y //u„:h^ 



1 : 1< «)<>.( M t 



SMHi E]M1 



