182 J. J. STEVENSON CARBONIFEROUS OF APPALACHIAN BASIN 



wells, the whole interval in some cases being filled with red shale. Thin 

 beds are found in different wells at 528 and 567 feet.* 



In Greene county the upper 250 feet of the Conemaugh are shown on 

 the Monongahela river. Impure limestone is at 4 feet below the Pitts- 

 burg coal, and a little Pittsburg coal bed is at 40 feet overlying a lime- 

 stone. The Clarksburg limestone and its overlying coal bed are at 130 

 to 140 feet, and the Morgantown sandstone, 95 feet thick, is well shown 

 overlying the Elk Lick coal bed, which is 2 feet 4 inches thick and 245 

 feet below the Pittsburg. A fossiliferous shale with many lamelli- 

 branchs was seen near Greensboro at 148 feet. 



Eecords of oil borings in the interior of the county are available for 

 the north border, the center, and the southern border near the West Vir- 

 ginia line. No coal is noted in any boring except at the south, where 

 the Barton is at 350 feet below the Pittsburg. The thickness of the 

 Conemaugh in that part of the county is 560 to 565 feet. The Con- 

 nellsville sandstone is present in the north and center, with its base at 

 120 and 128 feet below the Pittsburg; the bottom of the Morgantown is 

 from 226 to 235 ; the Buffalo horizon is marked in the north and center 

 by a mass beginning at 390 and 401 feet, and in the north it is 90 feet 

 thick. The Upper Mahoning is present in two records, beginning at 

 481 and 451 and ending at 511 and 486. It is wanting in the west cen- 

 tral part of the county, where only shales are recorded to 140 feet below 

 the Buffalo sandstone. The Lower Mahoning is present in all records 

 except that of the west central region, the bottom being at 591, 560, and 

 565, in the last resting directly on the Upper Freeport. The intervals 

 within which the red beds appear are 120 to 183, 205 to 290, and 385 to 

 415, answering to those of Washington county; each of these is almost 

 filled with red shale in one or other of the wells. A lower horizon is at 

 500 to 510. The greatest thickness in all of red shale is in the central 

 part of the coumry, where 135 feet is found in the first and second in- 

 tervals, there being none in the third ; the least is near the Monongahela, 

 where a single bed, 5 feet thick, is reported at 351 feet, f 



THE NORTHERN PANHANDLE OF WEST VIRGINIA 



It is well to carry the section to the Ohio river across the narrow strip 

 in West Virginia adjoining at the east southern Beaver, Washington, 

 and Greene counties of Pennsylvania. 



* J. J. Stevenson: (K), pp. 178, 207, 271, 279, 280, 283. 



J. F. Carll : Ann. Kept, for 188G, pp. 762, 764. 



I. C. White: Geology of West Virginia, vol. \a, pp. 112, 113, 117, 118. 

 ■j-J. J. Stevenson: (K), pp. 90-91, 94, 115-116. 



.1. F. Carll: Oil Kept, for 1889 (15), pp. 31, 35. 



I. C. White : Geology of West Virginia, vol. \a, pp. 122-123, 130. 



