SOHAGPUR COAL-FIELD. 



49 



There is an analogy between these fossils and those from the Kar- 

 harbari group, but a recent visit to Karharbari has shown that, so far 

 as petrological and textural features are concerned, there is no harmony 

 between the rocks of the two fields. In the strata of the Karharbari 

 horizon, one of the points chiefly insisted on is the brecciated character of 

 the sandstones. Those of this region are peculiarly devoid of pebbles 

 either worn or sharp; they are principally soft earthy sandstones 

 and shales occasionally micaceous, moderately fine-grained, and either 

 whitish or grey dashed with pink or brown. 



Passing the neighbourhood of Khaira, the Sarpa and its affluents 

 No coal outcrops near cu ^ through typical felspathic Barakar sandstones, 

 Kha " a - but, strange to say, I could not find a trace of coal 



or any approach to coal. So much, however, was I struck with the pro- 

 bability of its occui-rence, that I chose two sites for boring ; one between 



Khaira and Piparia, and the other at the junction 

 Sites for boring. , . T , 



of the Barua and the fearpa streams. As 1 have 



previously explained, however, these borings were not carried out, but 

 should explorations ever again be thought necessary, I recommend them 

 as suitable positions. 



The only outcrop of coal of any pretension in the Sarpa is near 

 the southern margin of the trap area north of 

 Lalpur seam. Lalpur. It is better seen east and west of the 



river in two small streams and the section is 'descending) — 



ft. in. 



Carbonaceous shale . . . • • . .40 



Coal 2 0 



Carbonaceous sh;ile . . . . . .30 



I am inclined to believe that this seam corresponds with the shale 

 and coal east of Sohagpur along the border of the. traps between Chainpa 

 and Jamua-Jamoi, and perhaps if driven into, the proportion of coal at 

 both places may be found to be actually greater than appears at the 

 surface. 



North of the Sarpa we find in the Son another outcrop of what 

 struck me at first as being mainly carbonaceous or coaly shale, but it is 

 d ( 185 ) 



