212 WYNNE : GEOLOGY OP KUTCH, [pART II. 



specimen was with difficulty obtained, in a fragmentary state, which 

 had originally a diameter of rnore than 2 feet (Lytoceras rex, Waagen, 

 Mss.) Among the fossils found here are — 



Flmflloceras dispufahile. 

 Lytoceras Adelaides. 

 Oppelia subcostaria. 

 Uarpoceras ignolile. 

 S. ... Hecticum. 



StephaTiOoeras macroeepTialum. 

 S. ... iumidum. 



S. ... Grantianum. 



S. ... Opis. 



PerispMnctes arthriticus. 

 JP. ... calvus. 



P. ... curvicosfa. 



Pholadomya inornata. 

 Astarte pisiformis. 

 Trigonia cosiata. 

 T. ... interlcevigata. 

 CucttUea virgata. 

 Nucula cuneiformis. 

 N. ... Jtemistriaia, 

 Ctenostreon pecUniforme, 

 Ostrea Marshii and many other species 

 of Pelecypods and BracMopods. 



The Manjal hiUs south of Nurrha present another example of 



oval arrangement of the beds, caused by vertical 

 Manjal hills. 



distortion and flexion on the anticlinal axis of 



this coast range. 



The locality is one of great disturbance, and the quaquaversal 

 contortion, like those of the three cases already mentioned, has its axis 

 lying east and west, so as to cross obliquely here the main north-westerly 

 axis of the larger anticlinal, denuded portions of which form the chief 

 hills in this part of the province. The core or centre of the hills is 

 formed by a great intrusion of coarsely crystalline, doleritic trap, with 

 pinkish and light-colored felspar, sometimes separately crystallized so 

 as to give the rock when weathered a coarse, syenitic-looking surface ; 

 its general structure and appearance being the same as that of the long 

 Arrara intrusion south-east of Dhenodur. In the centre of this trap, 

 great masses of the calcareous lower Jurassic beds are enclosed, so highly 

 altered at their junction in some spots, that although one hand may 

 be placed on the trap and the other on part of the enclosed mass, 

 no definite line of demarcation can be seen. In one section where 

 this intense alteration takes place on the north side of the hills, 



( 212 ) 



