42 BUjSTDELCUND. 



Although the eastern division of the Bijawur area is from 8 to 10 



miles wide, I could not present with any confi- 



Upper Bijawurs. , . t , o ^ i , • , , ^^^ 



dence, a continuous list ol beds amounting to 1,000 



feet thick. White, grey and red, sandstones and shales are found within 

 a few yards of the lower junction, conformable with the bottom-rock, 

 just such are met with near the southern boundary also ; a rock undis- 

 tinguishable from the jaspideous breccia so often noticed as a bottom 

 rock may be met with in any part of the area. For some distance south 

 of the north bounding ridge the rocks have been quite denuded, the 

 upper Semri flowing through a tolerably open valley. Whenever a rock 

 does show in this region, it is almost invariably the red breccia, as at 

 Durrempoora and Berheri. It is near the Semri scarp that the best 

 opinion can be formed of the normal rocks and the nature of their dis- 

 turbance, and no where so well as in the gorge through which the Semri 

 passes to the inner valley. 



Where the Semri sandstone first cuts the river, another stream from 

 S. W. joins the Semri ; both flow along the strike for some little way 

 and then turn off to E. by S. ; for the first 200 yards up the Semri, the 

 rocks are thin alternating layers of hard sandstone showing a ripple- 

 mark, and of a stone like the millstone noticed at Bussour ; these are 

 associated below with fine white siliceous shales — they all have a very 

 disturbed rolling dip of 20°-30° to S. W. At the bend of the river, the 

 dip increases suddenly, and the top beds are smashed up and recemented 

 into a siliceous breccia. 



The Semri sandstone rests against, and on these, quite undisturbed 

 from the moderate slope of deposition ; at the west end of the section 

 these underlying strata are twisted sharply down, against a mass of a 

 more compound breccia, hard, red, and yellow, jaspery : this is a huge 

 amorphous mass, underlying at a high angle to N. W. About 100 yards 

 above it in the river, there are coarse purple sandstones going at 50° to 

 N. W.j then red sandy shales with same dip, but 30 yards on, the. same 



