PHYLLITE SERIES. 



115 



harder bands also sometimes become disrupted across their length 

 and the severed portions curled up and twisted into irregular shapes, 

 as in specimen 4 ~ 5 !, 7 from Nawagaon between Mori and Isri. The 

 foliation planes can also be seen making considerable angles with 

 the bedding, as in specimen 4 ~ 5 9 8 from 3 miles N. of Samlaji, where 

 wrinkled micaceous layers and sericite plates, set parallel in planes 

 almost at right angles to the original bedding, become evident. 

 Specimen ^\ from 1 mile south of Meghraj is quartzose and shows 

 well-developed platy structure (see text fig. 22). 



A little east of Dhanivada, 4 miles cast of Meghraj. thin veinlets 

 of pyrolusite occur in the Phyllites and 



.Maiij/aiK'se ore. ? " , , , / vr Qfi\ 



mtcrbedded quartzite (specimen No. 4 5 a 4 ). 

 By digging about in the alluvium and surface soil to a foot or so 

 in depth, small pellets of pyrolusite were also found. A similar 

 place 1 mile south or south-south-west of this was discovered with 

 veinlets as thick as the finger. Fairly large lumps a few inches 

 across, ( 4 - 5 fi 6 ) of fairly pure, soft, radiating needles of pyrolusite 

 were brought to me from between Naogaon and Chhapri. On 

 visiting the place it was found to be a mere pocket in the 

 quartzite. 



IDAR GRANITE, GRANOPHYRE, ETC. 



In this section I treat together, as appertaining to one congruent 

 intrusive body, certain prominent rocks of 



Classification. ... . • . • -i i • ■ 



granitic, microgranitic and granophyric types. 

 This is necessitated by the fact that so far it has been found 

 impossible to separate them in the field, and it appears quite likely 

 that all three types merge into one another without any decided 



