KAKTllgUAKE OF CENTKAL JAPAN, 1891. 



:34<) 



produced by direct lateral pressure exerted at the ends of the bar;?.* 

 Besides the vertical inoveni-jnt. horizontal shiftiijo- of either side would 



take I'lace along" the same 

 -ü^^^Xl plane of f uilt, and the raised 



;]i;^-i^ ridg-e AV(3uld Ije much dis- 

 ■ '":^-.yC'^'i_5-^^^~Z turbed and become a con- 

 fused mass of clods of earth, 

 ^D?o'llQoâ?ïo^?,'i^°'^°0'^'" <>^ sh(jwn in the subioined 



^;'^'4,nXi:E:^^f,l^ w.)od-cut. The flexure in 

 V/^ //// / // this case had better be called 



the niONOcIinic diaijonal 

 // Tl'-'.ciiir. The peculiar scjft 



mound of earth, of which we 

 have often sp<jken. behjiigs t(j such a flexure. 



This unique track, though at first sight it seemed quite insigni- 

 ficant and was C(,)nse(piently usually overlooked by casual observers. 

 is of gTe;it geological bearing. Unlike other p.ccidental fissures it is 

 characterized ])y C(^n.<iancy of direction and regulai'itv of course. 

 Starting from Kataljira near the Kiso-gawa, it runs up its length 

 through the Xeo valk'y to Ilaku-san (a distance of 64 kilometres), 

 and then seems to proceed north-west up to the city <)f kukui. for the 

 extraordinary distan('e of 11 L^ kilometres, or l^S /•/. The one with 

 which we are nujst concerned, is the line of fault oi- displacement of 

 rock-complexes, along which, as I h:i\e repeatedly pointed out, the 

 ground on the Irj'l side lunl suhsiilrJ j'r.jiii | io G uuircx^ and ai iliv same 

 time been ]iori:onlalli/ s]iij'ied for 1| io :i iiwiirs in a nortli-icesierh/ 

 direction. The only exce[)lioii to the general rule was the fault in 

 Midori, where the land w^as hjwer on the west than on the east j the 

 manner in which this special condition may be supposed to have been 



See The cause of Monuclina! Flexure, by A. J. Jnkes-Browu, Geol. Mag. 1891, p. 505. 



