SUPUA-BAItAKAKS. 



71 



" To the westward, in one of the tributaries of the Dharsinda, 

 two coal seams are imperfectly exposed. They are 

 probably identical with two of the seams described 

 above, as occurring in the Manikmara section." 



There are no other remarks about coal exposures, but Mr. Ball men- 

 Coal fragments in tions that fragments of coal are abundant in the 

 G<5bn Nadi. 0 £ ^ e Gobri near Nouapara, and far south- 



ward in the Talchir area. 



The notice of the coal-measures of this field is confessedly imper- 

 fect, and Mr. Ball has been careful to say in his report that his examin- 

 ation was very hurriedly carried through, with a view merely to obtaining 

 a rough idea of the rocks to guide future more detailed work. 



SECTION XIV. — SUPRA-BARAKARS. 



Above the undoubted coal-measures are a succession of rocks extend- 

 Uncertain relationship m g U P to known Jabalpur beds, but whose relation- 

 of supra-Bai 6kars. ships are as yet too uncertain for me to say with 



confidence to what group or groups they should be assigned ; in order 

 to defer the solution of their classification to a more convenient season, 

 they are provisionally termed supra-Barakars. 1 



Their most prominent feature is the occurrence of ferruginous and 



silicio-ferruginous matter, producing different de- 

 Characters of rocks. , 



grees of induration and various ferric tints. There 



are all gradations of texture, but coarse-grained sandstones predominate. 

 Pebble beds and likewise conglomerates occur. Shales — red, pink, laven- 

 der, and mottled (red, purple, and yellow) — are moderately frequent in the 

 lower portion of the group, and, being usually brightly coloured, readily 

 catch the eye. Clays occur occasionally. 



As seen in the Johilla valley, where the best section in the whole of 



, .„ „ the South Rewah area is to be met with, the sand- 



Johilla valley. 



stones are massively bedded, often false-bedded, 

 generally coarse-grained, and friable when not indurated by iron ; rusty 



1 On the map one colour represents the entire series of rocks between the coal-measures 

 and the Lauieta group. 



( 207 ) 



