36' BOKARO COAL-FIELD. 



Ft. In. 



11. Thick-bedclcd sandstone ... ... ... ... 2'J 



12. Coal ... ... ... ... ... ... 1 O 



13. Variegated sandstones ... ... ... ... 13 8 



14. Calcareous sandstone ... ... ... ... 13 



15. Thin and-thick bedded sandstones ... ... ... 72 



16. Coaly shale. Dip 68° ... ... ... ... 3 6 



17. Concretionary argillaceous shale ... ... ... ... 13 



18. Carbonaceous shale ... ... ... ... ... 2 8 



19. Micacco-argillaceous shale ... ... ... ... 3 5 



20. Coal ... ... ... ... ... ... 3 6 



Eighty-tliree yards from this is the mouth of the Bhagalatta. 



In the ground between this stream and the Chootooa there i.s a 

 deposit of kunkur. It has been quarried in order to supply lime for 

 the bungalows building on Jilunga Hill. 



The sections west of Puchmo are few and imperfect. Numerous 

 small streams occur, but their channels are invariably filled by sand. A 

 few rocks are seen in the Jhirna Nullah at the boundary. 



In ascending order— 



Ft. In. 

 (a). Fault rock. 



1. Greenish slightly felspathic and micaceo-sillceous sandstone. Dip 60° 



S. S. E. 



2. Slightly carbonaceous shale. Dip 50° 



3. Argillaceous shale slightly concretionary ... 



4. Slightly carbonaceous argillaceous shale ... 



5. Greenish micaceo-argiUaceous shale 



6. Carbonaceous shale 



7. Highly felspathic siliceous sandstone, greenish and 



containing also boulders . . 



8. Greenish, yellow, micaceo-argiUaceous shale 



9. Like No. 7 

 10. Micaceo-argiUaceous shales, concretionary in places, with a yellowish 



green colour ... ... ... ... 20 



A few feet of sandstone ; and then the rocks are hidden by sand 

 up to the union of this stream with the Chootooa. 



Another stream, the Sut Nuddee, to the west of this, again exposes 

 Barakars near the boundary. A seam of coal occurs in it, a portion 

 of which is thrown up by two parallel faults, heading north-south. 



Above the coal comes sandstone, which is also faulted ', the direction 

 of this last fault is north-north-west, and its throw is perhaps 40 feet. A 

 difference in the direction of dip is seen on either side of the fault. West 

 of it the beds dip south ; east of it they dip south-south-east. South of 



( 71 ) 





39 6 



... ... 



15 3 





1 9 



«.l ..a 



8 



... ... 



3 9 



... 



11 



thick-bedded. 







6 9 





1 6 



.. 



4 3 



