ARAVALLI SYSTEM. 61 



In cinswer to the first question it may be said that I have followed 

 round the Delhi Quartzite exposures on both sides and that they 

 show a continuous series of quartzite of the usual Delhi 

 facies with dips and strike directly continuous with those of the 

 Mundeti series, but without revealing any traces of the latter 

 infolded with them. The point of nearest approach that the 

 Delhi Quartzite makes to the Mundeti series is in the little 

 hill (almost hillock) north of the tank 1 mile K.byN. of the 1,153 

 feet hill before referred to. Here the Delhi Quartzite is only 

 separated by less than }-mile of surface alluvium from the brecciated 

 hornstone variety of the Mundeti series, and just here the strike 

 of the Delhi Quartzite is considerably twisted from normal, being 

 E.byN. with dip of 60° S.byE. Both in this hill and in the suc- 

 ceeding little hill to the east and in the main spur of the 1 ,633 feet 

 hill, the quartzite is very platy with veinlets of quartz, the plati- 

 ness evidently being due to shearing. On the S.W. side the 

 Delhi Quartzite of the little ridges N.E. and S.W. of Mundeti town, 

 as well as the larger mass of the same with the intrusive quartz- 

 porphyry lying south of Malasa, prove the prevailing dip to be 

 the same, and the absence of infolded Mundeti beds is equally 

 certain. The above facts undoubtedly point to faults or irregular 

 junctions of some sort, and are not explicable by any simple un- 

 conformity of the Delhi Quartzite above the lower series. Such 

 junctions between the two formations, we shall see later on, are 

 of common occurrence at many other places. 



(7) Other areas of Aravalli rocks. 



The remaining outcrops of Aravalli rocks are of a very scattered 

 description. When laid down on the map 



Scattered and insi<r- .i -, 1 ... .. ,, 



nificant exposures only. th(> . v mA 7 bc recognised as constituting the 



ground-work of a few more or less connected 

 and wide-open peneplains covered with alluvium. The rock 

 elements, themselves, make little or no show in the orography of 

 the region : it is very seldom that they rise above the base-level 

 of denudation for this part of India, and then only in the form 

 of very gently rising, low, mounds. Their more constant mode 

 of occurrence is as river- and stream-bed exposures, where they 

 are just discernible under the banks of gravel and clay, or as 

 little elifTs bordering the deeper pools. Nowhere do they build 



