40 JONES SOUTHERN COAL-FIELDS OF SATPURA GONDWANA BASIN. 



and this only after visiting the place twice, in sucessive years, as the 

 first year the spot was covered with several feet of sand, though I 

 found fragments of coal lower down in the bed of the stream. 



§ 14. — The Tawa Field. 

 This is the most extensive continuous area of Barakar rocks exposed 



in the Satpura basin, being 10 miles in length 

 Extent of area. r & * ® 



from east to west and 8 miles across in its 



widest part. It covers an area of 79 square miles ; but in spite of the 



large area of ground covered the number of coal seams exposed is not 



large, although two of them are of considerable thickness. The name 



adopted for the area is that of the Tawa river, which flows across 



it for some distance at its western end. 



Following down the Tawa from the . point where it leaves the 

 Talchirs, north of the village of Sarni, there is a mass of trap exposed 

 in the bed of the river and on its right bank extending for some 

 distance along the hill to the north. Beyond this, typical Barakar 

 sandstones, dipping to north-west at 5 , are exposed along the river, 

 and a thin bed of coal under an overhanging mass of sandstone. The 

 Barakars continue along the river, and the dip gradually becomes 

 more northerly, and at a higher angle till beyond Sobhapur just before 

 the Moturs cover the Barakars the dip is north at 25 . 



Wherever the rocks are exposed north and south of the Tawa in 

 the small tributary streams, they are typical Barakars, chiefly sandstones 

 and mostly with north and north-westerly dips, becoming steeper to 

 the west. 



In the neighbourhood of Bhogi and Khapa numerous small boulders 

 Talchir boulders lying closely resembling those of the Talchir boulder 

 on the Barakars. beds are to be seen distributed sparsely over the 



surface of the ground. I at first thought that they might be due to de- 

 nudation of Talchirs at this spot, but after a careful search in the neigh- 

 bouring watercourses I was unable to find any rocks which presented 

 any signs of being other than Barakars, and the coal seam exposed 

 in the Tawa near Bhogi-Khapa distinctly indicates the presence of 



'( 40 ) 



