SEC. 7.] THE CHAUWAK AND K.ATEOL EANGE. 187 



extending with low southerly inclinations through the country in that 

 direction^ until overlaid by the stratified traps, the rocks presenting 

 the same varieties as those already detailed. South of Juddoora some 

 good specimens of Palmozamim were found in the white sandy shales of 

 the upper group. 



Rising from the broken ground formed of these rocks is the 

 conspicuous rugged hill of Khirgreea, an outlier 



Khirgreea Hill. 



of the traps to the south. At and near its base 

 the sub-trappean grits are seen, with much of the appearance presented 

 by those of the Kokma Hills beforementioned, and the upper part is 

 formed of strong dark magnetic basalt, which may have found its way 

 to the surface at this spot. One or two considerable trap dykes run 

 from this hill towards the bedded traps to the south, but were not 

 traceable within its boundary. 



The escarpment of the stratified trap here reaches its greatest 



Trap escarpment near elevation, and at one spot its base is formed of a 



Khirgreea Hill. ■ c , i -^ i -i 



succession oi trappean ashy grits and more sandy 



infra-trappean beds, having a thickness of 20 feet. These, however, do 



not occur generally along the scarp, the lower portion of which is often 



composed of the Jurassic beds. 



The Dora Hills here present three or four low parallel east and west 



scarps among broken hilly ground, formed by the 

 The Dora Hills. 1 o J i, > J 



alternation of harder and softer trap flows, the latter 

 in the lower part of the series frequently containing agates, zeolites, and 

 geodes, lined with rock crystal in great abundance. In consequence of 

 the flows having a general southerly dip at from 3° to 5°, the terraced 

 and tabular appearance so prevalent in the trap area of Central India 

 is not observable in this locality, though the traps are in other respects 

 identical, consisting of the same varieties of basaltic and amygdaloidal 

 doleritic rocks. 



( 187 ) 



