1 68 



Cincinnati Society of Natural History. 



Beneath are five to six feet of bluish and brownish shales. On the 

 south side of the creek the Belfast bed is shown again. Above it 

 there is a greater exposure of the Clinton, showing near the top some 

 of the very characteristic fossils of that formation. 



4. Belfast. — The sections near Belfast are sufficiently well 

 described in a paper on "Clinton Conglomerates and Wave Marks in 

 Ohio and Kentucky " Journal of Geology, Vol. Ill, No. 2. At the 

 bridge exposure southeast of Belfast, the Belfast bed is well exposed 

 and contains Halysites catenulatus and annelid teeth. It is also well 

 exposed farther up stream, above the bridge southwest of town, on the 

 J. V. D. Smart farm, and again on the William Haigh farm along a 

 small stream emptying into Brush creek from the north. In the 

 William Haigh farm section the^conglomerate layer in the ferruginous 

 part of the Clinton lies only 15 inches below the Dayton limestone. 

 The layer with stratification line dipping 25 degrees southward is at 

 least 13 feet below the level of the Dayton limestone. That part of 

 the section opposite the barn containing a stray blue pebble one inch 

 in diameter is at least 15 feet below the Dayton stone. The fossils 

 opposite the house occurred in a bed at least twenty-three feet below 

 the Dayton stone. The upper flinty layer occurred about 32 feet below, 

 and the lower one about 34 feet below the Dayton stone. The base of 

 the Clinton was 38 feet below the base of the Dayton, this being the 

 total thickness of the Clinton. The pebbles are not confined to the 

 top of the Clinton in this section but occur also in the middle, although 

 of smaller size. The bottom layers of the Clinton contain Plectam- 

 bonites transversalis , var. elegant ula. The Belfast rock is here 4 feet 

 thick, and contains annelid teeth. Beneath occur 22 inches of a bluish 

 clayey material with shaly partings. 



Going north from Belfast to Hillsborough, the postofnee at Berry- 

 ville is found to be about 208 feet above the level of the Dayton stone 

 near Belfast. The highest point north of Berryville is 48 feet higher 

 up. The base of the Dayton stone at Rocky Fork, a mile and a half 

 south of Hillsborough, is according to a single barometer 

 reading about 60 feet above the level of the Dayton limestone near 

 Bejfast. At several points along the road between Belfast 

 and Hillsborough, lime-sinks occur. They are not deep and 

 serve in several places as hog-wallows. Their elevation is about 150 

 feet above the base of the Dayton limestone. 



