Maryland Geological Survey 459 



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tn 



^ = Si o 



Road S. 47° E. i |l g| 2 5^2 



Concealed, massive conglomeratic sandstone at top, 20 

 feet thick 5995 322 3402 



Concealed. Massive gray sandstone at top. N. 7° E. 

 60° E 5565 150 3080 



Road S. 50° E. 



Concealed to east end of bridge over creeli. Massive con- 

 glomeratic sandstone at about 4800 feet from beginning of 

 section (2627 feet above base of Jennings) seen in creek 

 bed 5365 401 2930 



Concealed. Spirifer disjunctus found on slope of hill 

 west of creek, altitude about 2275 feet above base of Jen- 

 nings 4815 301 2529 



Road N. 17° E. 



Argillaceous shale and some sandstone N. 17° E. 60°. At 

 4185 horizontally (2223 vertically) Ambocalia umbonata 

 abundant, Chonetes scitulus, Spirifer mesastrialis, Gy- 

 ronema liratum, Orthoceras cf. demum 4465 10 2228 



Road N. 75° E. 



Largely concealed. Argillaceous sandstone and shale. 

 Chonetes scitulus 3895 254 2218 



Parkhead Sandstone Member. 



Argillaceous sandstone and shale. A conglomeratic sand- 

 stone near top 3565 123 1974 



Sandstone and shale. A conglomeratic sandstone with 

 large white pebbles at base of unit 3405 23 1851 



Yellow sandy shale, more argillaceous above, breaking 

 irregularly and weathering to a reddish tint. N. 7° E. 

 56° E 3375 177 1828 



Yellow arenaceous shale and sandstone. Some dark-red 

 sandstone 3145 51 1651 



Yellow, fine-grained conglomeratic sandstone containing 

 CamarotoBchia congregata var. parkheadensis abundant, 

 C. eximia, Spirifer (Delthyris) mesacostalis, Tropidoleptus 

 carinatus N. 7° E. 40° E 3077 1 1600 



