STRATIGRAPHY OF FOSSILIFEROUS MEMBERS 15 



The Harrison ore is too poor in iron content to be of economic 

 importance; its high percentage of silica and patchy outcrop also render 

 it undesirable for commercial use. At present it is nowhere used 

 commercially, although in the early history of the State it was utilized 

 to a very limited extent in the charcoal furnaces of Scioto, Jackson, 

 and Muskingum counties. 



Description of Geologic Sections and Collecting Localities 



Scioto County. In Scioto County the ore is found only in Harrison 

 Township, from which locality it was named by Stout in 1916. l The 

 following strata measured on Munn Hill, in Section 32, show the 

 variable character of the deposit : 2 



Feet Inches 



Pottsville formation 



Shaly sandstone 20 



Coal, bony, Anthony L __ 6 



Clay, flint, Sciotoville 3 6 



Shales, and parts covered 38 



Conglomerate zone, flint, bowlders, shale, ferruginous 



clay, Harrison horizon 2 



Logan formation 



Jackson County. The Harrison ore outcrops in the stream bed 

 and valley walls of a small tributary which the Little Scioto River 

 receives from the south, in the central part of Section 22, Hamilton 

 Township. Excellent collecting is afforded from the bed of the stream 

 below the house of Phillip Meldick, as the fossils are abundant, well 

 preserved, and easily obtained. The deposit is buff or red in color, 

 coarse-grained, siliceous, and filled with numerous soft, decomposed 

 pebbles, resembling to a marked extent the Sharon ore above. The 

 collection of fossils from this locality is the only one made from the 

 Harrison ore. These fossils were not found in fragments of older Miss- 

 issippian rock enclosed in the Harrison ore, and therefore are distinctly 

 of Pennsylvanian age. The following section was measured here 

 (Locality I): 3 



'Stout, W., Geol. Surv. Ohio, Fourth Ser., Bull. 20, p. 481, 1916. 

 2 Idem., p. 482. 

 3 Idem., p. 29. 



