30 ball: geology of the rajmehal hills. 



On the southern bank of the river none of the beds can be identified 

 with the above, but it is quite possible that the coal seam which has been 

 worked there may really be the same as the above ; if so, it becomes much 

 changed in thickness and character. 



On the Panchbyni or south side, there is the following section. 

 Ascending — 



1. Concretionary grey shales, seen ... ... 4' 



2. Grey earthy sandstone ... ... ... 1' 7" 



3. Same as No. 1, slightly carbonaceous ... ... 9' 



4. Carbonaceous shale with layers of coal and nests and 



bands of sandstone, lower portions unexposed, about... 8' 6" 



5. Gritty false -bedded sandstone, with carbonaceous mark- 



ings ... ... ... •.. 4' 



6. Carbonaceous shale, variable, where thickest ... 3' 10" 



7. Sandstones J „ „ about ... 9' 



8. Alluvium. 



No. 4 has been opened up by galleries, and a considerable quantity 

 of coal has been taken out. The galleries at the time of my visit were 

 nearly filled up by mud and drift, and it was difficult to form an opinion 

 of the value of the coal. 



Proceeding along the river section eastward from this we meet near 



, , the bend at Sursabad some remarkably regular 



Carbonaceous shales, J ° 



&c, at Sursabad. hefe of fine sandstones and carbonaceous shales. 



The constant rolls and frequent recurrence of the same beds further on, 

 shew that there is no great thickness of rocks in this valley, but at the 

 same time render it impossible to make more than a very rough estimate 

 of what the thickness may be; probably 500 feet is not in excess of the 



amount. 



The Saldaha stream, which runs from Bhulki to Sursabad, where it 

 meets the Brahmini, exposes a section of Barakar sandstones, including 

 some coaly shales, but no coal of useful quality is seen. 



A few seams of carbonaceous shale, with coaly layers, appear 

 in several parts of the Brahmini; further east, two of these, one 



( 184 ) 



