GEOLOGY OF CENTRAL INDIA. 85 



Still proceeding in the same direction, about half way betwixt 

 Nasrrahad and jBmwa, we perceive the two parallel ranges of hills described 

 in page — , and between which ranges our route lies. These ranges seem 

 to terminate to the west in a number of detached hills which rise here and 

 there in the line which the ranges would have followed had they been 

 continued. Some of these detached hills are conical, others are round, 

 while others are occasionally peaked. The rocks are still granites, some 

 of them containing imbedded actlnolite, and with others steatite and chlo- 

 rite occur associated. Gneiss and micaceous schist are also observed, and 

 the last, as we proceed east, becomes very plentiful. Many of the speci- 

 mens of gneiss have a zoned aspect, parallel layers of red felspar being 

 observed in these, alternating with layers of quartz, &c. and this last rock, 

 in some situations, passes into quartz, the connecting link being a rock 

 composed of parallel bars of quartz, separated from each otlier by plates 

 of mica. At a small village called Gherwdsi, about eighty-six miles 

 from Natirabad, occurs a low hill, composed of micaceous schist, with 

 subordinate beds of gneiss and granites, into both of which it appeared to 

 pass. I here found specimens of a variety of Jibrous quartz of a slightly 

 reddish tint — ^the fibres were arranged in a manner similar to those of fib- 

 rous gypsum, audit occurred imbedded in the rocks iii oblong portions of 

 small size, the superior and inferior surfaces of which were slightly convex. 



Proceeding in the same direction, the above rocks are still observed, 

 and small grained granites, composed principally of quartz and felspar, 

 with which occasional minute scales of mica are associated, preponderate 

 as we proceed east. Beds of micaceous schist and quartz are also met 

 with, — and the rocks just alluded to are succeeded by the quartz rock 

 formation, in the centre of which stands the hill fort of Sd/iar, or Omha 

 Sdhar — see page Go. Felspar, in small proportion, occasionally occurs 

 associated with this quartz. 



