PHUXG. 



] 32 ART. 2. — B. KOTO : 



recess of which is located an old and noted monastery with a 

 few relics of the Sil -la civilization. The high Ka-ija-san is built 

 np of gneiss -granite, and is the northeastern outpost of the 

 easternmost ridge of tlie Chiri-san sphenoid. Tlie ridge suddenly 

 lowers on the north to a hilly tract througli which the Seonl- 

 Fusan railway traverses the peninsula. It is the land-feature that 

 separates the granitic region from the sedimentary terrane, and 

 commands a view of the entire southeastern Ky'ông-sang-Do. 



Oar road then led eastwards along the river where we found 

 exposed thick beds of red marl (Wellenschiefer) alternating with 

 massive strata of a gray muscovite-l)earing sandstone, striking 

 N. 30 E. and dipping slowly 20 S.E. The complex was still tlie 

 Fied Marl series. At last we found ourselves once more ^' on the 

 bank (Pi. XXX. %. 3) of the Nalî-toiuj-gang at Kuel-plio "-' (20 m). 

 A splendid exposure of the " red series " on the Nak-tonfi-gang con- 

 sits of an alternation of three rocks, — a strongly effervescent red 

 marl and a reddish sandy tuffite, the latter consisting of splinters of 

 plagioclase, orthoclase, quartz, and fragments of red porphyrite, 

 cemented with sesquioxide of iron, while the third is a light- 

 green arkose sandstone or rather tuffite consisting likewise of 

 splinters of quartz, orthoclase, plagioclase, and flakes of biotite 

 and muscovite, cemented with calcareous and chloritic sub- 

 stances. 



After having crossed the river at tlie ferry (PI. XXXI. fig. 

 1) of lIol-gäi''\ we found ourselves in the eumnai of Hißn- 

 phung *^ which is still in the " red series." Looking back towards 

 the west, the rugged, serrated ridge of Ka-j/a-san was seen with 

 foothills of the red formation, wiiile in the east we looked up 



1) See pages 16 and 87. 2) m îi 3) .^, m t) ^ H I'l- XXXI. fiO- 2. 



