Chap. II.] 



THE HIMALAYAN SERIES. 



63 



13 1 



<! H " 1 



SB <j 



a . 



pi Is 



Section by Clioari 

 and Chumba. 



The foliation, and the changes of texture and of composition, indicate 

 throughout a high underlie to north-north-east. From the top of the 

 ridge at the Murrumghattee I saw to the east and the west, reaching high 



up on the northern spurs, thin- 

 bedded, dark-coloured rocks, 

 apparently but little metamor- 

 phosed, and resting at a mode- 

 rate inclination upon the gra- 

 nitoid rocks. Fig. 8 represents 

 the features of this section. 



To the west of Dhurmsala 

 the Sub-Himalayan boundary 

 recedes slight- 

 ly southwards ; 

 the area to the south of the 

 Dhaoladhar, occupied by the 

 outer rocks, being much wider 

 than at Dhurmsala. This ex- 

 pansion occurs principally in the 

 calcareous, slaty, and trappean 

 series. The trappean rock here, 

 as elsewhere, shows a disposition 

 to keep separate rather than to 

 mix indiscriminately with the 

 sedimentary rocks, but through- 

 out this area west of Dhurmsala 

 the more trappean band occurs 

 outside the calcareous band instead of inside, as we have seen it to the 

 east. In the streams south of Choari several excellent contact sec- 

 tions are exposed. There is first a great thickness of soft green schist 

 with a steady north-north-east dip, and over these comes the limestone, 



CO -3 



GO 



s s 



°S 

 r a 



« 3 



OS 



. a 



03 S 

 W «2 



W 



§ 1 



->! b 



« 



