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GRIESBACH : GEOLOGY OF THE CENTRAL HIMALAYAS. 



more complicated. The river has scooped out the carboniferous 

 down to the lowest beds of this system which has been laid into one 

 or more folds, in one of which (3, pi. 7) some remnant of the Pro- 

 ductus shales is left. The situation is east of north-east, opposite the 

 synclinal already described above (see pi. 15). 



The range forms a steep but net inaccessible cliff, and where not 

 obstructed by the enormous undercliff of debris, exposes a very clear 

 section (fig. 24). It forms an ascending section to about two-thirds 

 of its height, where it passes through the axis of a reversed anticlinal 

 and becomes rather more confused, till one reaches the synclinal 

 trough, and the south-eastern continuation of the permo-trias section 

 above described. From the strip of Produchis shales (9) through the 

 white quartzite (8), and the underlying red Crinoid limestone (7, a) 

 the section is fairly good and I found in descending order: — 



Systems. 



Lower Trias . 



Permian . 



Upper Carbon- 



iferous. 



Numbers 



in section, 



p!.7. 



{ 



Lower Carbjn- 



IFEROUS. \ 



10 



Description of strata. 



7, a 



Remains of limestone beds, much crushed, but yielding 

 fragments of fossils of Otoceras stage. 



Black shales with Productus semi-reiiculatus. 



f. White quartzite in thin beds, about 50 feet. 



e. White quartzite, with calcareous sandstone partings 

 and some irregular inclosures of earthy shales, 

 which weather brown ; about 30 feet. 



d. White quartzite in massive beds, with scarcely any 

 bedding visible. About 300 feet. 



c. Dark red Crinoid limestone with dark crumbling 

 shales. 



b Grey earthy limestone with red Crinoid limestone 

 beds ; b and c together about 400 feet. 



a. Bright light bluish grey earthy limestone with 

 Ctinoids. 



Obscured by the undercliff. 



Bluish grey limestone. 



( 174 ) 



