104 READER : REPORT ON THE RAMPUR COAL-FIELD. 



When the first borehole failed to strike this Eeb river seam the 

 idea of a fault downthrowingto the east appears to have been worked 

 upon, and a borehole was started at Luchkura a little over 2 miles to 

 the westward. Now the surrounding rocks are dipping at an average 

 of 1 in 12 to westward, so that one would expect to find the out- 

 cropping rocks at the Eeb bridge about 900 feet deep at Luchkura, or 

 assuming 900 feet of an upthrow to westward, surface rocks at the Eeb 

 bridge to be at the surface at Luchkura. But although the idea of the 

 throw of the fault is a very rough one we know that it can be but very- 

 little above 200 feet, if that much, and therefore a seam on the surface 

 at the Eeb bridge should be expected to be about 700 feet deep at 

 Luchkura. The borehole was 41 feet deep, and from the section it 



No. 2 borehole, w '" De seen tnat f° ur f eet °f coa ' was struck at a 



Luchku.a. depth of 29 feet and that afterwards eight feet of 



shale was passed through. Strange as it may appear this coal-seam 

 was at once said to be the same as the Eeb river and Durlipali seams. 

 The difference in thickness was accounted for on the supposition that 

 the seam had not been struck at the top but somewhere in the middle. 

 To further test the seam at this point a small shaft (53 feet deep) 

 was put down a little to the west of the borehole and it was expected 

 to have to go to a depth of at least 50 feet before touching the 

 Luchkura seam. At 36 feet, however, coal was struck and a 



Sha - ,t - 1 7 feet seam passed through, the shaft being stop- 



ped in sandstone. The Assistant Engineer (B -N.Ry.), who was in 

 charge of the shaft at the time, gave it as his opinion that the seam 

 bored through in the borehole had not been struck in the shaft. I do 

 not know the distance of the borehole from the shaft, but it seems to 

 me that since four feet of coal was anticipated at 50 feet deep and the 

 shaft was passing through coal at that depth and left it at 53 feet, 

 some reason should have been given for the opinion. One point, 

 however, is certain, that if the seam in the borehole and shaft are 

 not the same, the lower one, borehole seam, must be direectly below 

 the upper one, since the bottom of the 17 feet seam is 3 feet lower 

 than the level at which the top of the borehole seam was estimated to 

 occur. I was fortunate enough to see some of this seam which had 

 ( 16 ) 



