GHAP. 6.] THE STRATIFIED TRAPS. 59 



takes place, it will be obvious from inspection of the map that this 

 unconformity has been assisted by a greater ir- 



Irregularity of the . „ 



surface ou which the regularity of the old surface in the western part ot 



traps were deposited. ^ , ■ ■ ii 



the district, or that the flows there were originally 

 more local, beiug sometimes quite detached, or else that faults have so 

 altered the positions of the rocks that these appearances have been in- 

 duced. The difficulty of distinctly identifying most of the beds or flows 

 causes much uncertainty as to which of these conditions have prevailed, 

 or whether all three have not afieeted the present disposition of the 

 traps. There is much in favor of each view : and unconformity once 

 proved, the old Jurassic ground may have had any amount of unevenness. 

 The traps seem, on the whole, to have been locally deposited, as they are 

 not found anywhere in the far eastern or northern parts of Kuteh, 

 although a succeeding formation does occur which has not, at all 

 events, been proved unconformable to them, and faults are too numerous 

 in the district not to render it likely that they may have had their share 

 in producing the irregularity of outline and sometimes the total absence 

 of connexion between difierent areas of the trap formation. 



Though the flows have a general dip to the southward at angles 

 often under 5° and seldom more than 2° or 3,° they 

 are thrown into an anticlinal fold in the Chitrana 

 hills, dip to the west-south-west near their western termination not 

 far from Lukput, and undulate over the broad space which they occupy 

 in the Gaira hills south of that town, while to the east near Anjar they 

 form a bold curve, their dips changing from south to east and more 

 northerly directions. 



This formation being united both by lithological and petrological 

 identity, and also by some circumstances of position. 



Connexion hetween the 



features of the traps here' with the great Deccau accumulation (the largest 

 and in other places. 



trappean area known), its relations to the adjacent 



{ 59 ) 



