GEOLOGY. 99 



Taking it through Job itself the boundary must run round to the 

 east of the hills north of Chuakani and hence out of our area. 



On the plan accompanying this report I have washed the lowest 

 zone dark neutral tint. 



It will at once be noticed that the width of the area shown 



as occupied by this zone to the east is much 



greater than that to the south and that such 



extra width is apparently due to a fault marked as down throwing 



to the east. The data deemed sufficient to warrant the assumption 



of a fault as delineated on the map are :— 



(a) Shales taken to be Talchirs were seen in the Modlia nala 



dipping west-south-west 15 and apparently cut off 

 from the main bed by an intervening band of Barakars. 



(b) The white sandstone band, in the lowest zone of Barakars, 



is seen occupying positions explainable by a fault. 

 For instance, it is seen capping the Jamwapali hill 

 dipping at an angle of 5 to the south-west; nearly 

 a mile due south-west it is seen capping another 

 hill and dipping in the same direction, and also at 

 Telanpali where it has been quarried for bridge-build- 

 ing purposes. 



(c) At the Eeb bridge a seam of coal has been found underly- 



ing a conglomerate band. At three other points marked 

 R B , R°, R 7 , on the map, coal also underlying a conglo- 

 merate bed is observed. It is presumed that these are 

 four exposures of the same seam. Such being the case, 

 it is evident that the outcrop is duplicated. 



(d) The borehole No 1 of the Bengal-Nagpur Railway Com- 



pany's grant put down, under Dr. King's directions, 

 about 150 yards south-south-west of the Eeb bridge, 

 failed to strike coal at a depth of 170 ft, although had 

 the rocks kept their regular dip the Eeb bridge seam 

 should have been struck at a much less depth. 

 It is upon the above evidence that I have felt myself justified in 



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