103 ball: geology of aurunga and hutae coal fields. 



a seam now concealed. In the river section south-west of the 

 village there are, resting on the typical Barakar grits and pebble beds^ 

 some fine sandy shales and green silty Talchir-like clays which, taken 

 in connection with other like exposures, suggested the possibility, as I 

 have already stated, of there being in this field a group of beds separ- 

 able alike from Barakars and Mahadevas. This 

 view I have been obliged to relinquish. In the re- 

 mainder of the Atee section, from Bijka up to the junction with the Supahi, 

 these green beds occur with the grits, and no coal seams are exposed. 



In the Koel river, from the mouth of the Supahi to the mouth of the 

 Thatha, sandstones, &c., with south dip are occa- 



Section in Koel river. • ^^ ;] 



sionally exposed. 



In the Thatha river there are several seams of carbonaceous shale with 



mi, +!,„ coalv layers, but their position is uncertain, owing 



Section m inatna j j ^ x t. i 



river. to the inaccurate plottmg of the stream. Beyond 



the village the section is interrupted by the already alluded to Morwaie 

 fault in conjuction with which is the hot spring already described. 



Further east a seam of about 1' 4" of coal is 

 ^^"^' seen twice in the bed of the river, being bent 



by the fault into a synclinal. 



The section in the Koel, from the mouth of the Thatha to the 

 Mondul stream, again exposes nothing note- 

 bee ion m worthy till near the latter spot, when a coal 

 seam is partially exposed under the eastern bank. This is the only 

 seam uncovered in the whole course of the 

 Koel. The coal is much decomposed, and as only 

 three feet is exposed, it is not possible to say whether the seam is of 

 value ; the dip is 10°, rising to 15°. The long hog-backed ridge which 

 strikes eastward from this is made up of grits and conglomerates, and 

 possibly coincides with a branching line of fracture, since fragments of 

 fault rock are found in some abundance on the slopes. Half a mile to 

 the north, fault rock, which marks the position 

 East and west fault. . .ri, • 



of the Morwaie east and west faulty is seen 



(. 103 ) 



