JOURNEYS THROUGH KOREA. 177 



on the other side of the So-paik-san range. The spatulate basin '^ 

 in the Cliyol-la province is tlie Mesozoic of the same type as in 

 the Tram- So-paik-san region. We find there exactly the same 

 rocks, viz., diabase-porphyrite and its breccia, and red and green 

 marls. Prof. Gottsghe found near Chyang-söng a dark marl with 

 gastropoda, ostracoda and plant-remains (p. 118). Comparing 

 Mr. Yabe's rocks of that region with mine of other areas, the 

 complex developed there seems to represent the red marl (No. 

 3), the black marl and green tnffite (No. 2) and the sheet of 

 porphyrite (No. 1). So far as the facts presented warrant a 

 generalization, I am inclined to believe that the ' spatnlate basin ' 

 is represented by a complete series (Nos. l-o) of the Upper, and 

 perhaps also the immber 4 horizon of the Lower Kyöng-sang 

 formation '\ though it is impossible for me to give cartographical 

 expression to this opinion. 



Uniform strikes and dips prevail here. The common strike 

 coincides with the main axis of the basin with southeasterly 

 dips. The conglomerate bed on the south margin consists of 

 the gravels of granite and porphyrite, representing the same bed 

 as that at the base of the No. 3 horizon (pp. 28 and 87). 



One more patch lies a little farther north in the environs 

 of Y'6ng-dong-'\ and I correlate this Mesozoic with No. 4 of the 

 Kyöng-sang formation. ^ 



B) The Kißng-sang formation and its Japanese equivalent 



Before passing to another subject, let me say a few words 

 about the Kyöng-sang formation on the opposite side of the Sea 



1) See ante, pages 114-121 and 123-125. 2) See table, page 170. 

 3) ^I^ It lies oiitside the present area. 



