53 MALLET, VINDHYAN SERIES. 



would be suspected from a traverse merely of the table-land. It is in 

 the deep river-gorges that sections are to be found clearly exhibiting 

 such, the large bends of the massive sandstone contrasting with the 

 smaU scale contortions of the flaggy Eotas limestone. These disturb- 

 ances, however, are never excessive, a dip so high as 40° being unusual. 

 ' Faults of slight throw are of rare occurrence, the most important met 

 with being that by which the limestone of Kuriunchut is cut off on the 

 west side. East from Mungeysar hill the strata everywhere dip in to 

 the scarp, or north. In the valley of the Ghagur, there is an anticlinal 

 which brings the limestone some 3 or 400 feet up the side of the scarp 

 east of Sulkhun, while north and south of this the Kymores appear at 

 the bottom. It is probably the same undulation which brings up the 

 lower Vindhyans in the Doorgowtee valley in a line running east-20° 

 north. West of Sulkhun the dip in the scarp is again north, and at 

 Kurumchut the lower series re-appears. Thus the strata in the southern 

 part of the table-land east of Burdhee seem to form a certain number 

 of undulations running a little north of east. These straight ridges 

 must have had considerable influence in preserving a straight line of 

 scarp during its denudation. The lowest portion of the sandstone near 

 the Bijeygurh shales is very impure and argillaceous, of a blackish green 

 color, and rather thin-bedded. This rook is sometimes separated sharply 

 from the greyish-white and quartzose true sandstone. The mineral 

 character of the latter varies much. Sometimes it is coarse and conglo- 

 meritic; in other instances, micaceous. Usually it is fine-grained, 

 especially along the northern scarp by Chunar and Allahabad, where 

 coarse beds are never met with. Here it is usually greyish and yellowish 

 white or reddish ; sometimes speckled brown. False-bedding is frequent, 

 though far from being so much developed as in the Rewahs to the south, 

 where it is almost universal. Sometimes the rock is somewhat shaly as 

 { 5a ) 



