AUBUNGA FIELD : EANIGANJ GROUP. 85 



diminished zone of Barakars. In the next loop bend of the Aurunga 

 to the west there are similar sandstones, and with them some carbona- 

 ceous shales. Those at the north end of the reach are in crushed con- 

 tact with a peculiar massive white grit which has some resemblance to 

 Barakars, but must from its position, I believe, be referred to the Pauchets. 

 In the Aurunga west of Gowa the Raniganj beds are not clearly 



seen, but they must have thinned out considerably, 

 Raniganies thin out, . , ■ , ^ . 



smce they are restricted to a very narrow zone 



between the purple Panchet clays and certain grits, which must, I think 

 be regarded as Barakars. These sections and the one above described in 

 the Sukri where the faults intersect are the most western points where 

 rocks exhibiting the standard Kaniganj lithological characters have been 

 met with. It seems most probable that, where rocks of this age are 

 met with further west, they will be found to have assumed the lithologi- 

 cal character which distinguishes the Kamthis, 



It is singular that the change should be found so distinctly to the 

 west of the watershed of the Damuda. I have already endeavoured to 

 explain this on a previous page. 



There still remain two small areas of these rocks to be described ; 



K i.u £ T they are situated in the raviney ground north of 



Ai-eas north of Jug- -^ "^ ° 



guldugga. ^]2e Jugguldugga hills which is drained by the 



Subano river. The limits owing to the nature of the ground and the 

 want of striking contrast between some of the beds of the two groups 

 are olten very obscure. The most noteworthy fact is that they include 

 the only seam of real Raniganj coal met with in this field. The seam 

 is only 1' 6' thick, dip 25°. The quality of the coal is indicated in the 



table of assays. It turns out to be a worse fuel 

 Coal seam. . it, 



than I had expected from its appearance and light- 

 ness. There are other minor seams close by. The principal associated 

 rocks are dense, micaceous, calcareous, fine-grained sandstones and loose 

 soft sandy shales, some of them not very distinctly separable from the 

 rocks which occur in the region between Udipura and the Jugguldugga 

 hills, and which I have referred to the Panchet group. 



( 85 ) 



