2-2^ WYNNE : GEOLOGY OF KUTCH. [PAET II. 



stratification were observed, and the sides of the trappean portions are 

 60 shot over by spilled blocks that their intrusive character is equally 

 concealed. 



The open plain west of the GS,ndara hills is occupied by the upper 

 jura sandstones, but these are sometimes quite hidden by their own 

 superficial debris. 



Between the base of the hills and the village of Lakapoor, a four- 

 foot band of rather ashy-looking and more 

 Lakapoor. 



solid trap is intercalated with nearly horizontal 



light coloured sandstones and ferruginous grits, while intrusive traps 

 in this part of the country have so frequently an interbedded appear- 

 ance that this cannot be asserted to be contemporaneous. 



The great intrusion expands north-west of Lakapoor and becomes 



so complicated by passing between the Jurassic 

 Infi-a-trappean. 



beds and enclosing considerable portions of them 



that its general outline only has been attempted to be shown upon the 

 map. It forms a narrow ridge near Lakapoor, on the north-east side of 

 which are some peculiar soft mottled sandstone beds, of coarse grain, 

 resembling the infra-trappean grits of Bhoojia hill and other places. 

 They contain silicious masses obscurely like fossil trunks of large trees. 

 Some gray sandy shale in these beds has the appearance of being re- 

 composed from the detritus of tmp, and the whole group with a very 

 slight southerly inclination has a thickness of about 100 feet. 



The Jurassic sandstones of this country are generally very coarse, 



sometimes white, sometimes oolitic, and often con- 

 Lower jura fossils. -■ <■ • , 3 -u j. ^, 

 glomeratic, tormmg rough ground between the 



intrusion and the anticlinal to the north-east, from which they dip at 



angles of 10° to 25°. At one spot west by north from Soorka peak, 



the beds coming directly from thence contain a greenish, shaly, oolitic 



and sandy band, calcareous in places, and about 50 feet in thick- 



( 226 ) 



