JOURNEYS THROUGH KOREA. 157 



as far as the feny of Chjjok-s'ôiuj '^ between San-clihyang '^ and 

 Nam-uöii^^, where a splendid profile is exposed for the detailed 

 study of this series (the strike N. 20 E., the dip SO^S.K). 

 Near-by is the gold placer of Chho-gyol-san^^, where Mr. Ixouyk 

 found black and green phyllites as members of this series. 



II. h. About 5 G hm northeast of the locality of Cliyök- 

 söng last mentioned, there occurs at Mid-k'ô-sil lying to the east 

 of Ch'm-an (p. 120) a patch of gray zigzag -lamellar mica-schist 

 of sedimentary origin with white spots in the equant, interdigi- 

 tate or honey-comb aggregate. The spots (1-2 cm) are a pinitoid 

 substance, probably altered from andalusite, cordierite, or ortho- 

 clase. It is probably a prolongation of the preceding mica-schist 

 of Kang-jui. This contact schist has the strike N. 40"" E. and the 

 dip N.W., and occurs between hornblende-porphyrite and biotite- 

 orthogneiss. The relation of the three rocks is not at all clear 

 to me. Perhaps tlie schist is the pinched relic of thnist-blocks. 



///. The ^hyllitc Scries 



Under this head are included the a) Kun-san and b) Phyllite 

 formations, the divisions proposed by Mr. Inouye "\ The former is 

 exclusively developed near the free part of Kun-san and is 

 characterized by highly metamorphosed schists ; the latter is the 

 designation given to similar rocks of the peninsula though less 

 metamorphosed as compared with the former, and according to 

 Inouye seems to represent a certain horizon of the late Baron v. 

 Eichthofen's Tahu-slian formation. From the close resemblance 



1) % ^ox %,m. See anti-. puge 77. 2) -^ ^ 3) pg Jf; 

 4) f^ '1^ UJ 5) hoc. clt. p. 20. 



