Tin-: GItEAT F-lUTT OS OF SAKUlîA-JIMA IX 1914. 



11 



o) The iiortluriiiiiost '/.vno is bnilt u|) of the oldest foi'iUHtioiis of 

 Gneiss {Ar hi Fig-. 2), variously intruded and assimilated by granitio 

 magma. The region is for a greater part occupied by the equatorial 

 Inland Sea or Seto-uchi, and the K^aishû portion of it is hoav hiddtai 

 mider the superimposed ^"olcauic masses.^-' 



h) The next in the order of age Hes to the south of the first zone 

 in a narrow contracting band ; and in northern Kyîisliû it reappears on 

 the north side of the 



first zone. It is tlu; 

 green schistose Samba- 

 gawa-Mikabu complex 



(Sc in Fig. 2) of earher 

 Paleozoic age already' 

 refeiTed to.-^ 



e) Small patches 

 of Cretaceous bed Cr 

 occupy a narrow space 

 between a and b zones 

 on the east ; Ijut on the 

 A\(^st coast of Kyûshù 

 it covers the submerged 



Jans: ça —SnijTu^ 



YoJcti^S 



area of the Gneiss zone 

 in the Amakusa islands 

 at the south of Nagasaki. 



d) Next comes on 

 the south side a broad 

 band of Paleozoic 

 graywacke formation 

 P<(, devoid of fossils. 



é) The southernmost zone is the sandy slate formation M of probably 

 Mesozoic age. It is this formation which covers the three provinces of 



Fig. 2. — Geologic sketch-map of Southern Kyûshù 

 scale , 1 : 2,000,000 



Volcanots : /I'l-Kaimon, S-Salaira-jima, ^T-Kirishima, ^-Aso, 

 Jifi-Kujû-san, F-Yufu and Tsurumi, F-Futago, ^-Kibô- 

 zan near Kumamoto, L'-Unzen, T-Tara-daké. 



Formations : (r-Granite, Ar-Archean, Sc-Sambagawa-ililcabu 

 Schists, Pa-Paleozoic, Cr-Cretaceoiis, il-lMesozoic, T- 

 Tertiary, La-Platcau Formation. 



1) These surficial volcanic masses are left out in Fig. 2. 



2) See page 6, footnote (3). 



