COUNTRY NORTH OF THE SON AND WEST, ETC. 351 



having been preserved on layers of sand intercalated between thin 



feands of sandstone, well seen about Sulkma. Associated with the 



limestone, in its upper part, is a highly ferruginous rock presenting, 



when weathered, a highly complicated honey- 

 iron ore. . ... , . e • 



combed structure, utilizable as a source ot iron. 



Commencing at the western extremity of the area under discus. 

 The zone as traced from si °n, the limestone outcrop on which Sulkma 

 Sulkma eastwards. sta nds is the limestone of this Zone V, This 

 is followed eastwards by Kudri to Dueria, then east by north as far as 

 the longitude of Ramnagar (Long. 8i° ii'*5) when it turns north-east, 

 and this course is kept up to near Naogama. The zone has much 

 thinned out by this time and is only traceable as a very thin band 

 striking E. by N. by close south of Khoomarha, a little south of 

 Dangarha, by Raidooria, by Rampur, and then after a double cur- 

 vature near Rampur, runs by Raikhor, Kua and Churhat, and is 

 well traceable as far as Lakhaora, east of which alluvium steps in 

 and the band is no longer possible to follow. (The limestone visible 

 by the tank of Bargama is probably the outcrop of a flexure in the 

 main band). So by Patpara and Koludi and eastwards the band 

 ceases to be connectedly traceable. The small calcareous outcrop by 

 the tank of the southern village of Pahari and by the western 

 tank of Hinaoti, together with one between Lillwah and Sahaol 

 mark in all probability the eastern continuation of Zone V. 

 Between Sahaol and one mile east of Bhaghor no limestone is visible 

 about this horizon, but from the latter point a thickish band is 

 Limestone band by observable by Bardi, Barhat, Khaira and as far 

 Bardi, Barhat, etc. as Gangi. The band is quite thickish as seen 

 exposed on the stream a little to the west of Gangi. But it is difficult 

 to follow it nearer the village, About f mile south-east by east of 

 Gangi and close to the right bank of the Son some calcareous beds are 

 seen with a local high dip to the south indicating the disturbance to 

 which the beds have been subjected hereabouts. This exposure, 

 however, shows nothing of the thickness of the limestone band seen 

 just west of Gangi, and so whether it marks a continuation of the 



( 15' ) 



