320 



GEOLOGY OF OHIO. 



rock and the Coal Measures also varies greatly, and it is evident that at 

 different horizons the sandy shales of the Waverly pass into coarse Con- 

 glomerate, which form long, narrow ridges, with a northerly and south- 

 erly bearing, and nowhere extending in broad sheets in an easterly and 

 westerly direction. The fact is of interest, in this connection, that the 

 whole body of the Waverly here is composed of coarser material, and is 

 generally more homogeneous than further north. 



The following sections will show the general character of the upper 

 members of the Waverly, and the local character of the Waverly Con- 

 glomerate : 



Section from top of hill, near south-west corner of Washington town- 

 ship, to the "oil-well" on the banks of the Mohican, six miles south of 

 Loudonville. 



1. Coaree ferrnginous, cherty CoDglomerate. 



2. Olire shales of Waverly ' 270 



3. Alternate bands of sandstone and argillaceons shales 100 



4. Argillaceous shales, with nodules of iron ore, many fragments of 



crinoids, spiril'ers, etc 20 



An exposure half a mile west of No. 3 of this section shows a coarse 

 and more massive sandstone, approaching to the character of the Wa- 

 verly Conglomerate. 



Section thekb -fourths or a Mile north- west of Lucas. 



FT. 



1. Red and yellow Conglomerate 10 to 18 



2. Hard white sand-rock in three layers 19 



3. Covered 160 



4. Sandy and argillaceous shales at bottom of valley. 



The upper part of the Waverly Conglomerate is represented by the 

 upper part of this section. The rock shows occasional seams of pebbles, 

 and in places colored bands, not as marked, but of the same character 

 as at the Mansfield quarry. It is firm and strong, splitting easily in the 

 lines of stratification, and furnishes very good quarry rock. 



