COAL EXPLORATIONS. IOI 



The relation of the Kamthis to the Barakars has frequently been 



considered. Dr. Ball favours the idea of un- 

 conformity. , . 



conformity but states that no actual section 



exhibiting unconformable superposition can be adduced. Dr. King 

 (Rec. Geol. Surv. Ind., Vol. XVIII, pt. 4, pp. 195 and ig5) says in 

 reference to this area : " I did not come across any section showing 

 actual contact of the Kamthis on the Barakars, but there always 

 appeared to be perfect conformity between the two." In Rec. Geol. 

 Surv. Ind., Vol. XIX, p. 220, however, Dr. King concurs with 

 Dr. Ball's view of unconformity. 



So far as the area here described is concerned, the whole facies of 

 the occurrence of the one formation on the other gives one the idea 

 of perfect conformity and for the purpose of this paper I shall con- 

 sider the relation as such. 



CHAPTER III. 

 Coal Explorations. 



The boreholes put down during 1891 and 1892 by the Bengal- 

 Nagpur Railway Company and all put down since are here considered. 

 Boring explorations previous to that date have been treated on by 

 Dr. King in the Rec. Geol. Surv. Ind. The sections of all the boreholes 

 referred to will be found in the appendix. 



After the discovery of coal on the site of the Eeb bridge, six 

 boreholes and two small shafts were put down. 



No. 1 Borehole was put down 230 yards south-west of the most 

 westerly pier of the Eeb bridge. 



No. 2 Borehole and a small shaft near the village of Luchkura. 



No. 3 Borehole is described as situated 1^ miles from the west 

 bank of the Eeb river and 2\ miles south of the railway. On reference 

 to the map this will be seen to be incorrect. I am unable therefore 

 to mark the site on the plan annexed. 1 



No. 4 Borehole and a small shaft are near Kodopali. 



1 The sketches to hand purporting to shew the sites of the boreholes are of 

 very little use, being tracings (and sometimes very rough ones) of the topographi- 

 cal map. 



( '3 ) 



