CONEMAUGH FORMATION IN WEST VIRGINIA 20? 



in part, at the Cowrun horizon. The red heds are thick, 43 and 50 feet 

 at 119 and 208 feet respectively, the latter above the place of the Ames 

 limestone and equivalent to the Ohio "Big Bed." The Pittsburg reds 

 do not appear in the Harrison County records.* 



Doddridge county is west from Harrison and south from Tyler. Near 

 Long run, 6 miles west from Cherry Camp, a thin sandstone is at the 

 Morgantown horizon, but the Cowrun interval is filled with shale, while 

 there is sandstone, 406 to 452, within the Buffalo ; the Upper Mahoning 

 is shale, the Lower Mahoning is sandstone in part, extending into the 

 Allegheny at 589 feet, and the only red bed is one of 97 feet, resting on 

 the Buffalo, which is in part the Pittsburg red. In northern Doddridge, 

 near Center, several wells show a 30-foot sandstone just below the Con- 

 nellsville horizon, but no other. The red beds vary ; in three wells within 

 a small area one finds them at 



218 to 242 155 to 163 75 to 110 



267 to 340 293 to 320 290 to 540 



feet below the Pittsburg coal bed, while farther west, near the Tyler 

 border, the whole red is in two beds, 15 and 30 feet, beginning at 235 and 

 411 feet respectively, only 35 feet in all, contrasting with one of the 

 Center wells, in which the red is continuous from the Pittsburg reds 

 into the Allegheny. At this western locality the Morgantown, Buffalo, 

 and Mahoning intervals contain only 11, 25, and 20 feet of sandstone. 

 In southeastern Doddridge, on the Harrison-Lewis border, one record 

 shows sandstone in the Upper Mahoning at 440 to 480, but for the most 

 part that interval holds only shale ; sandstone is in the Lower Mahoning 

 35 feet thick, f 



Ritchie county, west from Doddridge, is south from Tyler and Pleas- 

 ants. The Pittsburg coal bed is of uncertain occurrence, but in areas 

 where it is present the interval to the "Big Lime" of the Lower Carbon- 

 iferous varies within sufficiently narrow limits to justify use of the lower 

 horizon in tracing the section. Midway in the county, near Harrisville. 

 as well as in the Whiskey Run district, 10 miles northeast, no persistent 

 sandstone appears in the Conemaugh. At Harrisville a thick sandstone 

 overlies the place of the Pittsburg coal, but no other sandstone is recorded 

 until the Allegheny is reached. In Whiskey Run area one well shows 

 two thin streaks of sandstone in the Conemaugh; the others none. At 

 Cairo, 3 miles west from Harrisville, sandstone is seen in one well. con- 

 tinuing from 409 to 487, in another from 443 to 483, and in the latter 



* I. C. White : Vol. i, pp. 248, 250 ; vol. ia, pp. 317-318, 325. 



•j- 1. C. White : Vol. i, pp. 321, 325, 328, 329, 331-332 ; vol. ia, pp. 282-284, 293, 295. 



