TALCHEER COAL FIELD. 67 



This bed does not seem to occur in the sections exposed in the 



BoinjJur and other nullahs. 



At a somewhat higher level, but still in the lower part of the group, 



a thick and very irregular conglomerate occurs, consisting chiefly of 



quartz and gneiss pebbles, the former predominating. These vary greatly 



in size, from very small pebbles up to those of a foot in diameter, and 



are firmly cemented together. In places there would seem to be two 



or more of these bands, as near Intosora in Eehrakol, while in other 



places the bed seems wanting altogether, as (e. g.) on the extreme West 



of the field, where it appears to be replaced by an ordinary pebbly 



sandstone. It is evidently a beach deposit, and this satisfactorily 



accounts for its partial occurrence. Another feature worthy of remark is 



the appearance of red mottled clays, which occur indifferently throughout 



the series, but are probably but very irregular in their continuance. 



Throughout the Ghora Hills, which are entu-ely composed of these rocks 



of the upper group, many of the rocks have been much altered by the 



iufiltration of iron, which has in all probability taken place subsequently to 



their upheaval. There is no certain evidence of this, but the infiltration 



is proved to have been at least subsequent to their deposition by its very 



partial occurrence and by the manner irj which many of the boulders 



in the conglomerate have been colored only to a certain depth by the 



iron. These upper grits occupy only a very small area East of the Ouli 



T ,■,■ ... valley and appear to have been mainly removed 



Looautiea of the upper '' ^^"^ •' 



S"*^- by denudation. East of the old Sumbulpur road 



they are sometimes let in by syncHnals, and they occur along the Konjiri 

 and Bodaberna Fault in patches, the largest of which forms Konjiri Hill, 

 with an elevation of probably over 500 feet. The mass of this hill is 

 composed of sandstone with conglomerate at the top, the pebbles from 

 which conceal a large portion of the underlying sandstone. 



West of this another narrow patch appears South of Dereng village, 

 and extends along the South side of the Konjiri Fault for 5 or 6 miles, 



