140 J. J. STEVENSON CARBONIFEROUS OE APPALACHIAN BASIN 



Near the eastern border of Tyler county, northwest from Doddridge, 

 the Washington seems to be about 465 feet above the Pittsburg and the 

 Waynesburg A is about 65 feet lower. A detailed section at Wick shows 

 the Washington 191 feet above the Uniontown, with red beds, 46, 23, 

 and 50 feet thick at 35, 225, and 260 feet above it, and another of 15 

 feet at 95 feet below it. The interval to this lower red is filled almost 

 wholly with sandstone. Massive sandstones 15, 38, 20, and 60 feet 

 thick are at 20, 115, 135, and 165 feet above the Washington, the 

 first three certainly falling within the Marietta interval. Here the 

 Washington is 444 feet above the Pittsburg. At a few miles northwest 

 in Ohio, opposite Sistersville, this interval has decreased to 407 feet. 

 Doctor White's section on the Ohio river 9 miles below New Martins- 

 ville shows red beds 10, 10, 15, 5, 10, 5, and 35 feet thick at 70, 92, 117, 

 232, 333, and 348 feet above the Washington coal bed, the last being 

 that under the Nineveh limestone. Only the foiirth bed is recorded at 

 Wick. The Marietta sandstones are insignificant. At Middleboume, 

 midway in the county, the well records show the Washington at 185 

 to 190 feet above the Uniontown, as at Sardis, Ohio, 10 miles north. 



In Pleasants county, west from Tyler, one approaches the "Oil break," 

 and the rocks rise rapidly toward the west, so that the oil borings seldom 

 begin in Dunkard rocks. The only available information is Doctor 

 White' s section on the Ohio river at Eaven rocks, about 3 miles below 

 the Tyler line, where are two massive sandstones 20 and 45 feet thick 

 at 63 and 123 feet above the Washington coal bed and therefore in the 

 Marietta interval; there are at least 30 feet of red rock in 48 feet above 

 the coal bed. These sandstones, evidently the Upper and Middle Proctor 

 of Doctor White's earlier studies, have been seen frequently along the 

 river and they are reported as present at many places in the interior 

 from Marshall county southward. A variable sandstone makes its appear- 

 ance below the Washington coal bed which becomes coarse beyond 

 Parkersburg, where the Waynesburg sandstone, wholly unimportant in 

 much of Wetzel, Harrison, Doddridge, Tyler, and Pleasants, becomes 

 an important member of the section. The interval, Washington to 

 Uniontown, is about 160 feet at Eaven rock, 20 feet less than at thelasi; 

 recorded measurement in Tyler and very nearly the same as in nortb.eiu 

 Washington of Ohio.* 



In Eitchie county, south from Tyler and Pleasants and west from 

 Doddridge, there is nothing above the Washington coal bed except a 

 dismal succession of shales and sandstones, all variable to the last degree. 



* I. C. White : Catalogue, pp. 71-74. Geology of West Virginia, vol. i, pp. 328, 329, 

 332 ; vol. io, pp. 249, 250, 258. 



