in Scioto and Lawrence counties, with an average of 3 feet; however, 

 in Jackson County only about 6 inches are present. Formerly this 

 ore was used commercially to a large extent in charcoal furnaces 

 especially in Jackson and Scioto counties, although at the present 

 time it is no longer utilized for this purpose. Northward in Mus- 

 kingum County the typical Boggs deposit consists of limestone, but 

 iron ore, shales, sandstone, or flint may be present with the limestone 

 or may entirely replace it. The limestone, where present, is often 

 bluish-gray, very hard, and very fossiliferous, closely resembling 

 the Lower Mercer limestone in lithologic character. The fossils, 

 although essentially similar to those of the Lower Mercer, are much 

 larger and more robust in appearance. The member is here less than 

 2 feet in thickness. In Tuscarawas County a blue limestone was 

 reported by Dr. Edward Orton to occur occasionally at what appears 

 to be the Boggs horizon, about 34 feet below the Lower Mercer 

 member; it has a thickness of 1 foot 6 inches near Bolivar in the north- 

 ern part of the county. Further stratigraphic studies may reveal 

 the presence of the Boggs member in the counties to the northeast. 



Description of Geological Sections and Collecting Localities 



Scioto County. The following section was measured on the 

 William M. Galligher farm, in the southwestern part of Section 24, 

 Bloom Township. No fossils were found in the Boggs ore of southern 

 Ohio, but they were discovered to be present sparingly in the shales 

 associated with the ore: 1 



Ft. In. 



Shale 5 



Coal, Upper Mercer, No. 3a 1 4 



Covered 54 



Sandstone, with finger coal at bottom 15 



Unconformity 



Shale, dark, fissile 1 3 



Ore ] [.. 4 



Shale [ Boggs <.. 2 



Ore j [.. 11 



Shale, blue 3 



The fossils collected from the dark shales on the William M. 

 Galligher farm are: 



Lepidodendron 



Naiadites elongata Dawson 



Along the road on the long ridge east of Pine Creek, one and 

 one-half miles southeast of Lyra, Vernon Township, Lingula carbon- 

 aria Shumard was found in great abundance in the dark shales above 

 the Lower Mercer or No. 3 coal, which occupies the Boggs ore horizon. 

 The section here follows: 



'Stout, W., Geol. Surv. Ohio, Fourth Ser., Bull. 20, 1916. Given in part on page 568. 



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