708 GEOLOGY OF OHIO. 



Sugar Run. This horizon will evidently furnish a very large amount of 

 excellent ore. 



The shales between No. 5 and the Great Vein may here, as at Straita- 

 ville and Shawnee, be regarded as ferriferous, carrying ores in places at 

 nearly all elevations. On Meeker's Run these ores are very conspicuous, 

 consisting of flat layers of very hard, compact blue carbonate, of good 

 quality, so abundant that their fragments constitute a large part of the 

 rock debris in the beds of the streams, from which many hundred tons 

 could be gathered up. On the Brooks property, section 19, it is a com- 

 pact blue carbonate, weathering to a brown oxide, and presenting an ex- 

 cellent appearance. A similar ore is also found in the shales directly 

 above the Great Vein. No explorations have been made for either of 

 them, so far as I have observed, but there are indications of a large 

 amount of the ore, especially in the shales below the coal. 



On Charles Robbins's land, section 23, York township, fifteen to 

 twenty feet above the Great Vein, an opening is made into a bed of dark 

 calcareous ore of good quality, in compact nodules, filling a space of four 

 feet. This is just below Coal No. 6a, and as far as opened shows a nearly 

 solid mass of ore. 



On George W. Gill's land, section 16, York township, sixty feet above 

 the Great Vein, is an outcrop, three feet thick, of compact non-fossilifer- 

 ous drab limestone, which, on section 23, is seen forty feet above the 

 coal. 



On section 23, at about seventy feet above the Great Vein, is a compact 

 blue carbonate, so far as opened, fifteen inches thick, and on section six- 

 teen appears to be still thicker ; the upper part only is exposed showing 

 a rich, well-oxydized ore in large nodules, giving promise of a stratum 

 swo feet or more in thickness. This is the limestone ore of Shawnee, 

 and the proper place of the limestone is just below it. On the Brooks 

 property the upper part of the ore is a compact blue carbonate, and the 

 lower part a calcareous ore. At Haydenville it is of a similar character 

 and two feet thick. On the Akron Iron Company's property, near 

 Bessemer, an opening had been made in the ore at the time of my visit, 

 which exposed from six to ten inches of this ore — a mixture of red and 

 yellow sesquioxide of good quality — the whole thickness of the stratum 

 not determined, and the limestone below not uncovered. At the town 

 site of Orbiston, on the Ogden Furnace property, four inches of good 

 gray calcareous ore is uncovered, resting on eighteen inches of compact 

 non-fossiliferous limestone, the roof rock not being reached. The nom- 

 iiJal thickness of the limestone which is exposed at various places is here 

 two feet. Near Haydenville it reaches a thickness of five feet. This is 



