SEC. 10.] NORTH-WESTERN KUTCH. 227 



ness, whicli is highly fossiliferous. Here lUiynchonella myriaeantlia is 

 very numerous with large and small Ammonites of undetermined species, 

 a very large Teeten 7 inches by 8, and a large shell resembling an 

 Astarte, 5 inches wide; Trigonia eostata, a TerehmUda, Bekmnites, 

 &c., occur. 



Below these are coarse purple sandstones with separate grains of 

 white quartz, alternating with light gray or brownish flaggy beds, and 

 shales which waste away to mud, the beds becoming more shaly and 

 flaggy downwards until the shaly ground overlooked by Soorka and the 

 Jarra cliffs is reached. 



In the neighbourhood of Moondan, coarse and ferruginous sandstones, 

 with some beds of slightly micaceous shale, form 

 a small open valley and broken or hilly ground 

 around it. The shaly beds as usual contain plant fragments, but other 

 fossUs are rare. On a rocky ridge running east and west, part of which 

 forms the north side of this valley, similar coarse and some thinner 

 bedded sandstones dip to the southward at 30°, the thicker brown bands 

 being speckled with small white grains of quartz. A gorge which crosses 

 this ridge north of Moondan exposes thick, soft, brownish sandstone, 

 fretted into pillars and cavernous hollows, parts of which contain 

 large strongly ribbed casts of thick bivalve shells matted together, often 

 very imperfectly preserved and difficult to extract from the matrix. 



Sandy shales 100 feet in thickness overlie these, and there is 

 evidence of disturbance and faulting both north and south of the ridge. 



Further west near Sairee, there is reason to believe that a fault 

 passes along the base of the ridge in the low ground near the Runn 

 and a curvature of the beds along it allows the fossiliferous rocks of the 

 lower beds to appear. They contain Bekmnites, oysters, and a few 



( 327 ) 



