GEOLOGY OF CENTRAL INDIA. 



77 



In the district north of NdUidtvdra, including the most northern 

 portions of Mewar, and the Ajmer and Jaypur districts, we find gra- 

 nitic rocks, gneisses, micaceous schists, and hornblende rocks, with occa- 

 sional beds of marble and serpentine — while the argillaceous rocks are 

 rare. But before describing these, it may be as well to give, in this place, 

 a short description of the Geology of the country on the route from 

 NdtWdwdra to KankarauU, distance of about nine miles north, and 

 slightly east. This portion of the country acquires importance from the 

 marble quarries which abound in it. 



Proceeding then north from the Bands river, the route running parallel 

 to, and at no great distance from the central range, the country exhibits 

 a mammillary aspect, and to our right stretch out the level plains of 

 Mewar. The first rocks which present themselves, are micaceous schists 

 approaching to argillaceous schists, which appear to pass, on one hand, 

 into argillaceous schists, with which a large proportion of mica is asso- 

 ciated, and on the other, into gneiss, generally of a schistose structure. 

 Small thin laminee of a white limestone, occasionally occur in patches in 

 the schistose rocks, forming a variety of the calschiste of the French. The 

 preponderating rock, however, is micaceous schist, in which occur beds of 

 quartz and hornblende rocks. 



On arriving at JK'aw/trtm2(??, several low ranges of hills are observed. 

 The Lake, for which its sacred city (for it, as well as Ndth'divdra, is the 

 seat of a Gosain of the Vaislmava persuasion) is famous, may be about 

 fourteen miles in circumference. It is skirted on two sides by these low 

 ranges, and on the other sides the water is confined by two bunds of large 

 extent, and there is another bund which blocks up a broad ravine which 

 separates two of the ranges just alluded to. 



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