STRATIGRAPHY OF FOSSILIFEROUS MEMBERS 23 



QUAKERTOWN OR No. 2 COAL HORIZON 

 Stratigraphy and Extent 



The next horizon above the Anthony coal in which fossils are found 

 is the Quakertown or No. 2 coal, the fossils occurring in the dark, tough 

 shales immediately overlying the coal. The deposit is of very wide 

 extent, and is present in every county where the Pottsville rocks occur, 

 although, except in northern Jackson and southern Vinton counties, it 

 is of importance for stratigraphic purposes only. In the latter counties, 

 however, where the member attains its greatest development, the coal 

 forms one of the most valuable beds in Ohio, and adds materially to 

 the wealth and economic resources of the State. Jackson County 

 owes much of its development to the presence of this bed which has 

 been mined for more than fifty years. 



At its southern limit in Scioto County, the Quakertown coal lies 

 half-way between the Anthony coal below, and the Bear Run coal 

 above, the average interval in each case being 35 feet. Northward in 

 Jackson County the latter interval varies from 20 to 30 feet, while that 

 between the Quakertown coal and the Sciotoville clay averages 40 

 feet. 1 In Muskingum County the horizon measures from a few to 70 

 feet above the base of the Pennsylvanian system, the variation being 

 due to the irregular upper surface of the Mississippian rocks. 2 At the 

 extreme northeastern extension of the Pottsville formation in Mahoning 

 County, the Quakertown varies from 50 to 80 feet above the Sharon 

 coal. 3 



The Quakertown coal reaches its maximum development in Coal 

 and Milton townships, Jackson County, where it is mined over an 

 area of forty square miles. Among the principal mining centers are 

 Wellston, Coalton, and Glenroy. The bed reaches a thickness of 4 

 feet in places, but averages for the county 2 feet 6 inches. It is of ex- 

 cellent quality, and for the most part is free from shaly partings, though 

 shales form the roof of the coal except where they are occasionally re- 

 placed by sandstone. The productive field extends northward into 

 southern Vinton County as far as Allensville, Elk Fork, and Vinton 

 Furnace. To the north and south the bed becomes thin and of slight 

 economic value although it is mined in places for local domestic use. 

 In Scioto County it is often wanting, but where present reaches a maxi- 

 mum thickness of 1 foot 10 inches, while in Muskingum County the 

 average thickness measures 1 foot 8 inches. Its value in the latter 

 county, however, is lessened by shaly partings fc to 6 inches thick. 

 Farther northward carbonaceous shales with very thin coal layers 

 mark the horizon, while in Mahoning County, Dr. Newberry reports 



'Stout, W., Geol. Surv. Ohio. Fourth Ser., Bull. 20, pp. 90-114, 550-552, 1916. 

 2 Stout, W., Geol. Surv. Ohio, Fourth Ser., Bull. 21, pp. 56-60, 1918. 

 3 Newberry, J. S., Geol. Surv. of Ohio, Vol. Ill, pp. 793-794, 1878. 



