SEC, 5.] LODAEE AND JOORUN EANfiE. 145 



Throughout this eastern portion of the range rocks similar to thosij 

 of the above section frequently recur, those of the hills being generally 

 shaly and flaggy, with obscure plant impressions and some thick bauds 

 of sandstone in their upper part, while below associated with the shales 

 are thin bands having a texture and colour not unlike a bluish gray 

 quartzite. Ferruginous beds are very common among what have been 

 indicated as passage beds in the above section, while the uppermost seen 

 are coarse, rough, and fine white sandstones. 



Some red and chalky white variegated and gypseous shales being the 

 last rocks seen towards the Rimn in the above section probably repre- 

 sent the sub-nummulitic group. 



In the neighborhood of Joorun the deep glens which intersect the 

 range afford good opportunities for observing its 



Joorun. 



structure. A commanding summit called Roha 

 hill rises to a height of 533 feet above the Runn (aneroid) in the centre 

 of the range, but to the south of its anticlinal axis, the beds forming the 

 hill having a steady di^D to the south. The range still preserves its double 

 character, other hills aligning themselves with this on the east and west, 

 and a minor chain flanking them to the north passing close to the town 

 of Joorun. South of all a small but bold group of rugged, serrated, 

 conical, and flat-topped elevations rises abruptly from the sandy plains. 



The glens east and west of Roha hill expose black and dark-gray 



shales sometimes variegated with red, occupying 

 West of Roha hiD. pit- , i , ■, 



the centre ot the chain and doubtless, from theu- 



softness as compared to the neighboring rocks, having tended to produce 



under erosion the depression along the middle of the range. 



The rocks on the northern flanks of the hills near Joorun are 

 frequently contorted or vertical, undulating along 



Northern flanks of hills. 



their strike. They consist of raggy beds, inter- 

 calated with which are thin flags and coarse friable whitish sandstones, 



( 145 ) 



