DELHI QUARTZITE SERIES. 93 



dip of 70° E.S.E. at the west side of the cutting. Some of these 

 interbedded phyllites are 20 feet and less in thickness. In agree- 

 ment with the dip shewn by these more fissile rocks, the quartzite 

 itself also shows the same in excellently exposed walls of rock. 



From Bhetali the quartzite ridge continues steadily N.N.E. 



Mora and Abhapur. to Mcm ' . T here, thc innermost quartzite 

 strata (that is those nearest to the Aravallis) 

 bend very sharply round into an arc of outcrop to Abhapur. The 

 next higher beds in sequence are probably more sharply bent, until 

 finally their outcrops proceed parallel in a more or less continuous 

 set of steep narrow ridges, with some zigzagging and interruption 

 by alluvium, to near Pal, high up the Hathmati valley. At Abhapur 

 the apparent base of the Delhi Quartzite is almost in contact with 

 some soft mica-schists to the south. In the absence of evidence 

 to the contrary, these have been supposed to be Aravallis. But 

 the foliation of the schists follows in strike and dip that of the 

 Delhi Quartzite, and so the question is not beyond discussion 

 whether these might not more appropriately be grouped with the 

 quartzite and so constitute a lowermost layer of the latter. Similar 

 soft mica schists are known among the Aravallis in the Meshva 

 river near Samalpur and at Bamanvada and other places. 



Returning to the quartzite, the ridge east of Bhutavada, of about 

 1,200 feet elevation, is composed of a very 

 Bhutavlda. ^ ° compact quartzite with vertical dip and with 

 traces of phyllites in the gap one mile south- 

 east of Madhupara, which may be regarded as a wrench in the 

 strike of the Delhi Quartzite. As a whole, all the way down to 

 Torda, the quartzite ridges are composed of massive vertical ribs 

 striking N.N.E. — S.S.W. These dyke-like, vertical walls of massive 

 quartzite protrude from the debris slopes and form a backbone to 

 the hill-spurs all along the tract via Ubsal or Umarvada and the 

 1,500 feet ridge east of Chorimal and Raisangpur. 



Near Pal, the most northerly exposure of this strike-mass of 

 the Delhi Quartzite is seen. From that 



Northern end of the • . -i • . ,, , . . 



quartzite at Pal. P 01nt lts stnke swings rapidly round, and its 



eastern edge in contact with the Phyllite 

 Series apparently returns beyond the State boundary and ulti- 

 mately joins up with that found 2i miles to the east of Abhapur, 



near Bornala village. 



tf 



