\n OROGK \ I'll I C SKETCH - »F KOREA 57 



blocks sweeping along the coasl of the Sea of Japan, from which the 

 right wing was successively thrown down to the sea-bottom, as if if 

 originated in disjunctive faults as an after-effect of the piling and 

 pressing up of Hondo (Japan) toward the Pacific Ocean. (Pages 

 17-22.) 



b. The second or Syo-Päik-san subgroup is also composed of 

 fault-scarps which trend south of south-west. This sub-group builds 

 the water-parting and boundary-wall between Kyöng-syang on the 

 one side and ChyoT-la and Chhvung-chhvong on the other. Instead 

 of maintaining the nearly parallel course of the members of the Thai- 

 Päik-san, the four component-ridges of the Syo-Päik-san diverge from 

 near the pass of Chhyu-phung-nyöng in feather form in South 

 ChyoT-la Do. In its north-eastern course the Syo-Päik-san is cut off 

 by the Thai- Paik-sau, exactly as the fold- crest of No-ryöng, already 

 described, which, however, differs slightly in direction and greatly in 

 its structure from the Syo-Päik-san members. (Pages 22-26.) 



iv. Xo less remarkable than the preceding is the direction of 

 the Han-san Bange which chiefly confines itself to the southern border 

 of South Korea. \\ trends from W.S.W. to E.N.E.; and corresponds 

 well with the north side of Sont h Japan, but as regards its western 

 prolongation it is no easy matter to conjecture what will be its 

 probable continuation. I simply suggest the idea that we might look 

 for its linear extension in the basin-ranges that govern the. course of 

 the Lower \ r ang-tze Kiang. These low ranges seem to belong 

 neither to the Kuen-lun, nor to the Sinian. (Page 31.) 



The Han-san Range resulted from a, later geologic event than 

 that which produced the Korean System. The former is composed of 

 a number of tilted edges of faults which threw down block after block 

 to the Southern Sea. The sea-coast is dotted with an innumerable 

 number of i<lets and rocks, and describes complicated in-and-out 



