1 6(2 KRAFFT: EXOTIC BLOCKS OF MALLA JOHAR. 



shales (4b). Block 4 is made up of almost horizontal strata of concre- 

 tionary limestones, the lower beds being grey, the upper red. I found 

 no fossils in these, but the lithological character of the rock makes 

 its liassic age pretty certain. 



Block 5 is a massive, much altered, red limestone, very poor in 

 fossils. It has yielded one ammonite strongly resembling Sageceras 

 and appears thus to be di middle or upper triassic age. 



Block 6 yielded some specimens of Arietites. Belemnites and ill- 

 preserved bivalves are common in certain earthy layers. The beds 

 have a low dip towards north. I united this block on the map with a 

 small outcrop of presumably liassic limestone to the south-west of it, 

 which is completely unfossiliferous and shows vertical beds. 



Block 7 yielded an ill-preserved specimen of Phylloceras. Seeing 

 that the dip is the same as in the neighbouring block 6, the two may 

 be connected subterraneously. 



It is clear that the occurrence of these igneous rocks and exotic 

 block in the midst of the upper flysch must be due ^disturbances. 

 Similar instances will be described below from the area south of the 

 Kiogarh plateau (see also " Results "). 



(0 The area south of the Kiogarh Plateau (Plates 4, 8, 9, 

 and sections 3 and 4 on plate 13). 



/. — Structural features. 



South of the Kiogarh plateau the structure assumes a more com- 

 plicated character. 



Triasso-jurassic anticline. — There is to the west the triasso- 

 jurassic anticline, which, appearing underneath the Spiti shales in 

 the ravine of the Kiogarh river somewhat below Talla Kiogarh I. E.G., 

 gradually ascends towards the high peak Lahur (app. 18,000 feet). 

 ( 36 ) 



