Chap. IV. § 2.1 lower damuda group. 61 



very imperfect section of the beds is seen. The measures seen in the 



banks of this stream were carefully explored by 

 Mr. Williams's section. 



Mr. "Williams, partly by means of pits and bor- 

 ings, and from the combination of these, with other measurements, he 

 gives the following as a general section of the Lower Damuda group 

 in the neighborhood of Taldanga* : — 



(Descending.) 



Ft. in. 



1. Black and gray argillaceous shale, containing the carburet of 



iron, or argillaceous ironstone, and bands of sandstone ... 192 



2. Black and gray argillaceous shale, alternating with bands and 



beds of sandstone, and containing nodules of ironstone ... 178 



3. Black argillaceous shale and ironstones in great profusion ... 186 



4. Indication of coal here. 



5. Black and gray argillaceous shale, containing nodules and bands 



of iron-mine ... ... ... ••■ 218 



6. Black and gray argillaceous shale, alternating with bands and 



nodules of iron-mine, and also with beds of sandstone ... 219 



7. Gray and brown conglomerate and sandstones, alternating with 



thin beds of gray and brown argillo- arenaceous shale, contain- 

 ing nodules of argillo-arenaceous limestone 



8. Brown sandstone conglomerate, very hard and compact 



9. Light-gray sandstone, coarse grain, quartzose, felspathic, and 



partially stained red and brown ... 



10. Concretionary coal (Chaunch seam) 



11. Arenaceous under-bed, with fibre-like impressions of plants ... 



12. Light-gray and brown sandstone conglomerate, with occasional 



alternations of thin beds of shale 



13. Arenaceous shale, with subordinate beds of sandstone 



14. Sandstone and shale 



15. Coal, thickness unknown. 



16. Light and dark-gray sandstone and shale, alternating in beds 



of various thickness 



17. Sandstone, hard and coarse-grained 



18. Thin-bedded sandstone, micaceous and gray 



19. Black bituminous shale 



20. Black siliceous rock, with a conchoidal fracture, and containing 



flakes of vegetable charcoal 



Carried over ...1,881 



* Report on the Damoodah Valley, &c., pages 69 to 74. 



310 







12 







20 







12 







4 







86 







150 







22 







228 







20 







14 







2 







8 







