hughes: kurhuebari coal field. 



21 



Two other sections to the north of this^ where the above was 

 obtained^ illustrate the irregularity of the seam. 



Top soil 



Soft sandstone 



Soft shale 



Coal 



Sandstone 



Coal 



Hard sandstone I 



Ft. In. 



7 6 



2 



1 4 



8 



1 8 

 7 



14 9 



Purtdiha, No. 31A* 



1. Top soil 



2. Sandstone 



3. Coal 

 Blue shale 

 Coal 



4. Sandstone 



( not cut through) 



Ft. In. 



5 



5 



1 

 5 



2 6 



16 



(not cut through) J 



This seam is very probably the one which crops out in the Puthro- 

 diha nullah south-east of the village^ and shows an almost identical 

 section. There is a reduction in the thickness of the shale^ and a gain 

 in coalj but the aggregate of the essential parts of the section is the 

 same. 



There are no workable seams higher in the series in the Purtdiha 

 nullah. The general strike in this portion of the area is nearly 

 due north-west^ and the strata are made up chiefly of alternations 

 of thin sandstones and shales with occasional small beds of coal 

 averaging 10 to 14 inches. The nature of the section in the Komal- 

 jore nuddi is somewhat similar. 



PuthrodiJia nullah. — At the head of this river are the old mines 

 of the East Indian Railway Company at Buriadih^ in which two 

 seams were formerly worked. The lowest bed is 14 feet thick, the 

 upper 9' 6". They strike nearly due north-west and dip at 12° to the 

 south-west. 



The bottom bed was cut through in shaft No. 12. 



1. Top soil ... 



Booreeadeeh, 2. Sandstone 



No. 12* 3. Coal 



4. Shale (not cut through) 



Ft.] In. 

 1 6 



10 

 14 



11 



( 229 ) 



