34 BOKARO COAL-TIELD. 



Ft. In. 



4. Sandstone ... ... ... ... ... 10 



5. Carbonaceous shale ... ... ... ... ... 9 



n. Coal ... ... ... ... ... ... 1 



7. Arenaceous shale ... ... ... ... 1 2 



8. Coaly shale ... ... ... ... ... 8 



9. Carbonaceous shale ... ... ... ... ... 10 



10. Mainly composed of slightly ferruginous sandstones, with some 



bands of carbo-argillaceous shales ... ... ... 35 6 



11. Concretionary carbonaceous shales, with a band of limestone ... 2 



12. Slaty carbonaceous shale ... ... ... ... 10 



13. Coaly shale ... ... ... ... ... 3 



14. Slightly carbonaceous micaceo-arenaceous shale ,.. ... 27 



Dip 20° S. S E. 



15. Coaly shale ... ... ... ... ... 7 



IG. Coai seam ... ... ... ... ... 6 1 



Ft. In. 

 Coal ... ... ... 1 7) 



Slaty carbonaceous shale ... 1 6 > Dip 20° 



Coal 



Total of Coal ... 4 7 



9 



6 



3 



6 







4 



10 







32 



6 



42 







17. Slightly carbonaceous sandstone ; ... ... ... 3 6 



A dyke running with the strike. 



18. Strong carbonaceous shale ... ... ... ... 3 7 



Dip 15°. The angle of dip decreases suddenly 



19. Coal and coaly shale, the latter predominating 



20. Dark micaceo-argillaceous sandstone 



21. Coaly shale 



22. Like No. 20. Plant impressions 



23. Micaceous sandstone containing pebbles. Dip 25° 



24. Reddish brown felspathic siliceous sandstones containing pebbles 



The river cuts a small gorge through this sandstone. The section 

 further up is admirably exposed ; a large seam of coal occurs. 



25. Coal seam. The upper 2 feet good ... ... ... 130 



26. Sandstone, white siliceous, and containing a small quantity of Car- 



bonate of Lime ... ... ... ... 15 



This passes into characteristic Damuda grit. 



27. Coal (good). Dip 25° 



28. Cai'bo-argillaceous sandstone. Dip 30° 



29. Sharp grained felspathic siliceous sandstones impregnated with iron 



30. Variegated fine gi'ained micaceous sandstone 



31. Coal (inferior) 



32. Thin-bedded sandstone 



33. Carbonaceous shale ... ... 



Ft. In. 



34. CoaZCgood) ... ... 6 0") _ . 



„ (stony) ... ... 2 OJ - - « ^ 



35. Carbo-siliceous sandstone ... ... ... ... 3 



36. Siliceo-felsijathic sandstone ... ... ... ... 10 



37. Blue carbonaceous shale containing u-onstoue ; varies from 8 to ... 1 3 



38. CoaZ of superior quality ... ... ... ... 18 



Underbed ... ... ... ... ... 4 



39. Carbonaceous sandstone. Dip 25° ... ... ... 2 



40. Coal (inferior) 



41. Slaty carbonaceous shale 



42. Sandstone highly felspathic and siliceous, with stains of Coal and 



containing numerous quartz pebbles 



( 72) 



16 



8 



5 







22 







7 







3 



6 



4 



4 



2 







