DUNKARD FORMATION 137 



The grindstone beds, the Marietta sandstones of I. C. Wliite, are thicker 

 than where they are shown just below Marietta; they are absent from 

 the few recorded sections west from the Ohio. The lowest member of 

 Doctor White's section may be taken as the Waynesbnrg sandstone, which 

 farther down the river becomes so prominent. As the course of the river 

 changes, the rocks fall, and at 7 miles down below Marietta the Wash- 

 ington coal bed is but 20 feet above low water. A higher coal bed is 

 reported here by Professor Andrews, biit the interval is not given. The 

 Washington coal is in the river bed at Belpre, opposite Parkersburg, 

 but the river changes its direction there and within 4 miles the coal is 

 90 feet above low water and 25 feet above a massive pebbl}^ rock, exposed 

 for 20 feet. This at times is continuous below with the Waynesburg 

 sandstone, giving a thickness of 100 feet and practically filling the inter- 

 val from the Washington to the place of the Waynesburg coal bed.* 



The Waynesburg sandstone, 250 feet above the Pittsburg coal bed and 

 occasionally resting on a thin representative of the Waynesburg coal bed, 

 is present in eastern Athens countj^ Professor Brown found a coal 

 blossom at 135 feet above the Uniontown, or 330 feet above the Pitts- 

 burg. The Dunkard should be present within a considerable area in 

 eastern Meigs, south from Athens and Washington, but there is little 

 available information respecting it. Professor Lovejoy has traced the 

 Waynesburg sandstone into the county, finding it coarse and 30 to 50 feet 

 thick, with occasionally the Waynesburg blossom under it. In two 

 townships he finds a coal blossom at 110 feet above the Waynesburg 

 blossom. Professor Andrews notes a coal bed, approximately 336 feet 

 above the Pittsburg, in Sutton township, and in Chester, about 3 miles 

 north from the river, he measured 



Feet 



1. Shale 50 



2. Sandstone and shale 11 



3. Coal bed [Washington] 2 



4. Clay and shale 5 



5. Sandstone and conglomerate 49 



6. Shales 46 



7. Sandstone and shale 35 



At Lebanon the coal bed is 3 feet thick and 160 feet above the Ohio 

 river. The conglomerate sandstone, rising or falling according to the 

 course of the river, was followed by Doctor White from the Washington 

 line to about 16 miles east from Pomeroy, where it passes under the river 



* E. B. Andrews : Vol. ii, pp. 461, 462, 463, 465, 466, 467, 472, 477, 505. 

 I. C. White: Catalogue, pp. 73, 74, 80, 82, 83. 

 F. W. Mlnshall cited by I. C. White : Bulletin no. 65, p. 29. 



