228 WYNNE : GEOLOGY OF KCTCH. [PAET II. 



Southward of this place, and south-west of Moondan, curious 



partial patches and heaps of sand seem to have 

 South-west of Moondan. 



been collected on parts of the hilly ground by 



windj and some solid dark concretionary basaltic and decomposed trap 



(the western extension of the great intrusion before mentioned) forms 



low hills. 



On the north side of these, and dipping towards them, are about 

 30 feet of rugged rocks, externally somewhat like Jurassic beds, over- 

 laid by white silicious and coarse sandstones. These when broken into 

 are found to have the decomposed or trap-impregnated appearance of 

 the infra-traj)pean beds. They rest upon white granular quartzose 

 ■sandstones, and all seem to be penetrated by the trap or entangled with 

 it : some small trap hills being capped by white altered sandstone of a 

 quartzite-like texture, underneath which is a peculiar silicious and 

 ferruginous breccia made up of fragments of white sandstone and soft 

 muddy trap. 



Some thick, black and gray variegated shales, underlying strong 

 yellow sandstones near this, are crossed by a dyke of columnar basalt, 

 the columns being pentagonal, straight and curved, and 20 feet in 

 length. The dyke has a width of 50 yards, and seems to be the ter- 

 mination of the large intrusion in this direction. 



From this place westward the upper jura sandstones sweep in an 



open curve with a low southerly dip past Uttra to the base of some trap 



hills beyond, and are seen to form much of the northern escarpment 



Stratified traps of edging this outlying mass of the stratified traps, 



Lickka and Uttra hills. extending from Lickka to Uttra hills, both included. 



These traps are of the usual basaltic kinds, dipping with gentle 

 inclinations to the south by west. The hills formed by them rise to 

 heights of 360 feet above the lower ground in the vicinity, and they 

 are separated by an open Jurassic plain from their larger development 

 to the south-west. 



( 228 ) 



