98 ,T. .T. STEVEKSON CARBONIFEROUS OF APPALACHIAN BASIN 



in a well on Eamsay run, 4 feet 5 inches thick and 238 feet below the 

 Upper Freeport coal bed. He found traces of it on the slope of Chestnut 

 hill at 80 feet above the Pottsville and 20 feet below the Lower Kittan- 

 ning coal. On Yellow creek the intervals are much reduced, the Upper 

 Freeport, Lower Freeport, and Upper Kittanning being but 55 and 25 

 feet apart, the associated limestones being present. A thin double coal 

 bed, often seen in the Second basin, is here at 11 feet below the Upper 

 Freeport and 3 feet above the limestone. The intervals increase south- 

 wardly, for on Black Lick creek the Upper Kittanning is 100 and the 

 Lower Kittanning 189 feet below the Upper Freeport. The coals are all 

 poor. The Freeport and Clarion sandstones are conspicuous, fine grained, 

 and current bedded. The Johnstown cement is apparently the only 

 limestone present. From this stream to the Conemaugh the section is 

 clear. The little coal bed below the Upper Freeport persists. The Van- 

 port limestone is present midway in the county where an anticline brings 

 it up.* 



Clarion county is south from Forest and west from Jefferson. In the 

 northern portion the section seldom extends above the Middle Kittanning, 

 and the whole section is found only in some widely separated areas within 

 the southern part of the county. 



North from the Clarion river one finds all of the coals below and in- 

 cluding the Middle Kittanning. The interval from Lower Kittanning 

 to the Yanport limestone varies from 8 to 20 feet without seriously affect- 

 ing the interval from the limestone to the Middle Kittanning. Doctor 

 Chance shows by a grouped series of sections that the Scrubgrass and 

 Clarion are but splits of one bed. The varying intervals between the 

 beds in southern Clarion are shown by these measurements, which are ar- 

 ranged from east to west: 



I. Near Fairmont, Red Bank township. 



II. In same township. 

 III. New Bethlehem, Porter township. 

 IV. Wildcat, Toby township. 



V. Hillville, Madison township. 



Ft. In. Ft. Ft. Ft. In. Ft. In. 



Upper Freeport 4 4 . . .... 20 



Interval -\ r 40 45 



Lower Freeport I 108 ) G 7 } . . . . 108 



Interval j (95 68 J 



Upper Kittanning 11 2 2 16 15 



W. G. Piatt: Indiana (H 4), pp. 187, 189, 191-192, 205. 209. 211, 220, 223, 226-227. 

 G. B. Richardson : U. S. Geol. Survey folios, Indiana, 1904. 



