278 WYNNE: GEOLOGY OF KUTCH. [p ART 11. 



The sub-nummulitic or lateritic band can be traced all round the 

 outer base of the hills, and at their western termination a small re- 

 presentative of the nummulitic gronp itself reappears, with some of 

 its NummuUtes and AlveoUna. This is succeeded as elsewhere by a belt 

 of sands overlaid by the arrrillaceous or fossiliferous group, which 

 extends out into the plain until covered over towards the coast by the 

 upper tertiary beds. On the north side of the anticlinal all the beds 

 are more highly inclined than on the south, being sometimes vertical 

 and occasionally displaced by faults from the village of Kotera west- 

 wards. South-west of Noondatur, however, on 

 Noondatur. • i o i ■ • 



the northern side of the termination of the traps, 



the groups succeeding them are seen within a distance of 300 yards,* 

 the beds having been thrown into nearly vertical positions. Their 

 total thickness here hardly exceeds 800 feet, ? the full development 

 of each group not being apparent ; the nummulitic indeed has a thictness 

 of but a few feet, and one bed only of laterite was seen below it. The 

 beds of the upper group strike along the south bank of the river from 

 Noondatm', with a dip of 80° northward, and on the opposite side an 

 alluvial plain extends for miles. 



This northerly dip may be traced in the plain to beyond Sainra, 

 where fine yellow calcareous sandstone, sloping at 

 10° to 15° to north-10°-west, contains finely pre- 

 served casts of Cardium sp.. Gastropoda and Corals. 



In these beds is a bard pink claystone band two feet thick, both 

 rocks being quarried for building purposes. Softer sandstones and rubbly, 

 lumpy, calcareous beds also occur in the neighbourhood, the former 

 containing quantities of Strombus nodosus, GeritMum pseudo-corrugatwm, 



* It must be remembered that an unconformity is supposed to occur within these 300 

 vards, and many of the beds beside the greater portion of the nummulitic group are probably 

 unrepresented in the section, so that 800 feet cannot be taken even to indicate the general 

 thickness of the tertiary rocks in this part of the province. 



( 278 ) 



