44 GRIESBACIl : RAi\[KOLA AND TATAPANI COAL-FIELDS. 



dyke of trap may be traced for a considerable distance. Between Palgi 

 and Thurkunda the sequence of beds is the same as in the Nowadih section, 

 but between that locality and Karamdiha the relations are very obscurCj 

 only here and there reddish sandstone or clays indicate the presence of 

 Panchet rocks. 



11. — Sections in the Ledho Nullah north of Karamdiha. 



Near the village of Karamdiha trap is in situ and forms the hill on 

 which the village is situated. But immediately north of the place, in 

 the Ledho nullah, I found :— 



2. — Haniganj beds consisting of a series of shales and thin-bedded sandstones of a 

 type which is best seen near Parasdiha in the Morne river, as will be 

 shown further on. These beds are exposed north-east of the Karamdiha 

 village on the slope down to the river ; the strike is north-east to south- 

 west, dipping about 5° to south-east, below the upper beds, which I shall 

 notice presently. The cliff consists in descending order of : — 



(d) light-coloured soft shales, and sandstone 1'; (c) clay shales, very friable ; 

 (5) carbonaceous shales with a thin bed of leafy coal ; this bed resembles 

 a similar layer of carbonized leaves seen in the Reonti cliff, to be 

 described further on. Eemains of Glossopteris communis, Fstm., and 

 G- angustifolia, Bgt., were found in these shales, (a) Dark conchoidal 

 shales. 



1. Barakar shales and sandstones of the typical character ; the base is not seen, 

 being covered up by the alluvial deposits of the river. 



A short distance higher up the river, at a place where two small 

 streams join the Ledho, south-east of Sihai, a group of beds are seen 

 consisting in descending order of — 



3. Panchets. k. Gritty sandstones with ferruginous partings, overlaid and inter- 

 stratified with red clays and gritty sandstone. 



i. Red shales ... ... ... '^ 



h: Ferruginous sandstone ... ... >Dip 5 to 7° north-east. 



g. Whitish grey marly shales ...J 



f. Red shales. 



e. Thin beds of sandstone of Mahadeva character with ferruginous 



partings. 

 d. White shales and thin-bedded sandstone. 

 ( 172 ) 



