Maryland Geological Survey 523 



■a -^ r5j ^ - = = 



— S-t! o "S "^ = 



rj o ° +J w o 



Direction of run N. 85° W. S leg's = S. 'i 



Olive-green thin-bedded shale with a few thin beds of 

 blue sandstone 2 to 3 inches thick 217 62 212 



Direction of run N. 55° W. 



Olive green fissile shale with a few thin beds of bluish- 

 green sandstone 2 to 3 inches thick. N. 27° E. 78° W 154 15 150 



Massive dark-gray sandstone 139 3 135 



Thin-bedded fissile olive-green shale with some thin beds 

 of bluish-green sandstone 1 to 3 inches thick 136 31 132 



Genesee Black Shale Member 



Very fissile black shale carrying Genesee fauna from 



top to bottom. N. 25° E. 78° W 104 101 101 



Romney-Jennings contact 



The thickness of the lower members is seen to be much less than in the 

 eastern sections^ the Chemung fauna appearing 1250 to 1300 feet above 

 the base of the Jennings. Particularly noticeable is the profusion of 

 Dalmanella tioga in the lower Chemung, in contrast with the almost 

 entire absence of this genus in the sections east of Wills Mountain. 



XXII. Section on Jennings Run Road 



The upper Chemung conglomerate and the overlying strata are well 

 exposed on the road leading from Cumberland to Barrelville along Jen- 

 nings Kun. (This section is described by Prosser, supra.) 



XXIII. Section near Allegany Grove ^ 



A section embracing nearly the entire Jennings is exposed in the cuts 

 of the Cumberland and Pennsylvania Eailroad southwest of Allegany 

 Grove. The section begins at the center of the trestle work over the 

 Winchester Eoad, which leads southwest to Cresaptown, and extends 

 westward 3433 feet, ending at the east end of the first tunnel. 



' Measured by pacing. 



