13 ■ BLANFOED : GEOLOGY OV NAGPtJe. 



Thenee to the eastward a long rise of sandstone extends, the beds being" 



apparently horizontal. South of thisj close to the village of Adusa, ' 



there is a small hill, composed of rather soft grit, 



Adusa. 



with a few thin beds of very fine compact red 

 argillaceous sandstone,* or compact shale. The general dip of these beds 

 is to the north. All the intermediate country between these few out- 

 crops is occiipied by alluvium. 



About five miles farther to the south-east, hills again appear, south 



and south-east of Patau Saongi, in a ridge stretching for about three miles 



from west to east, from the village of Chaada to Chicholi, close to Padri 



Khapa. The roots consist of whitish argillaceous sandstone with lilac 



streaks, intercalations of red and yellow compact shale, and coarse gritty 



beds with conglomerate and bands of deep brown 



Plant remains. , ■ i 



ferruginous grit. Glossopteris leaves are met with 



here and there in fine white argillaceous sandstone, the plant impressions 



being destitute of carbon and coloured red. Altogether a considerable 



thickness of rocks is exposed. The dip is irregular, the beds rolling 



about very much ; but they have a general inclination to the south. 



"West of the hill, near Patau Saongi and south of that at Adusa, 

 sandstones are exposed close to Sailori, and may 



Sallori. ^ 



be traced to the trap boundary near Walni and 

 thence along the south edge of the igneous formations as far as Bokhara 

 six miles north of Nagpur. The rocks here seen may be described before 

 the remaining isolated exposures in the plain to the north. 



* It is difficult to say what is the correct name for this rock. It is compact, and 

 under the lens has the appearance of an amorphous limestone, which it also resembles in 

 hardness and in its somewhat conchoidal fracture, but it is not calcareous. It appears to 

 consist of very fine sand and clay. It has no shaley structure. Its original colour is 

 sometimes buff, sometimes red ; at the surface it is usually of the latter colour. It is a very 

 well marked and characteristic rock, 

 ( 306 ) 



