222 GR1ESBACH: GEOLOGY OF THE CENTRAL HIMALAYAS. 



In the narrow valley of the lower Pin river greatly contorted (see 

 section in pi. i) sections of the trias and rhaetic is seen and in the 

 valley of the Spiti river itself just below the wooden bridge across 

 the river, a fine anticlinal may be observed. Portions of carboniferous 

 white quartzite (8) is brought up with associated hard grey limestone 

 (8, a) and is overlaid by the dark Productus shales (g\ which is 

 followed by the remainder of the trias-rhaetic group, above Dangkhdr. 



My chief object was attained when I successfully pieced together 

 Stoliczka's surveys with my own, and I did not proceed to map the 

 Spiti trias in detail. Proceeding down the Spiti river, I left the valley 

 near the village Mani, and from there began the ascent of the Mani- 

 rang pass, which leads all the way through beds of the trias and 

 rhaetic, wonderfully contorted. 'J he latter, twisted into complicated 

 folds, form the very saddle of the Manirang pass itself, see fig. 31. 



Fig. 31. Folded rhaetic beds, top of Manirang pass. 



A profile of the Spiti river anticlinal with flanking fixures will be 

 seen in the last view of pi. 1, which was taken east of Mani. 



The descent from the Manirang pass to Pamachang into the 

 ( 222 ) 



