Berger — Hog shooter Gas Sand. 193 



extends nearly southeast-northwest, the thinning is even 

 more rapid, from a thickness of at least 70 feet in wells 

 near the center of the field to zero in wells one mile to the 

 north and one-half mile to the south. Likewise in the 

 Vander Pool the sand thins from about 100 feet to zero 

 in one mile to the east and in but a little greater distance 

 to the northwest. 



The known locations of the eastward and westward 

 extensions from the main body are as follows : 



(1) Section 32 and 33 T. 28 N., R. 13 E. Max. thickness 34 ft. 



(2) " 32 T.27N., R. 13 E. " " 17" 



5 T. 26 N., R. 13 E. " 



(3) " 32 T. 28 N., R. 14 E. " " 31" 

 " 17 T. 27 N., R. 14 E. " 



(4) " 32 T.24N.,R.13E. u " 42" 



6 T. 23 N., R. 13 E. " 



There are probably other extensions which have not been 

 shown by the drilling. This is especially true of the 

 southern part of the area, but as previously stated the 

 sands there cannot be readily traced. 



Two wells have been drilled by the Empire Gas & Fuel 

 Company, one in the Vander Pool and the other in the 

 south end of the Hogshooter gas field, from which very 

 complete sets of cuttings were taken. A study of these 

 cuttings show that the Hogshooter gas sand is a light- 

 colored sand, composed of rounded quartz grains, with a 

 very small amount of muscovite, pyrite, and dark colored 

 minerals. The size of the grains varies from 0-2 to 0-3 

 millimeters in the Hogshooter field, and from 0-3 to 0-6 

 millimeters in the Vander Pool. 



All available data, especially the shape, thickness and 

 irregular lenticularity of the sand in the east-west direc- 

 tion, lead to the conclusion that the Hogshooter gas sand 

 must be the sand deposited by a large river along its 

 course. This conclusion is strengthened by the fact that 

 there was, at the time the sand was deposited, a topo- 

 graphical depression (which is interpreted as being an 

 old river valley) in the area where the sand body is 

 found. This depression extended north and northwest- 

 ward as a trough which was present immediately prior to 

 or during the early part of the deposition of the Cherokee 

 shales. This topographical depression or trough is evi- 

 denced by the great thicknesses of the Cherokee shale 



