506 The Upper Devonian Deposits of Maryland 



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Top of ridge. Map altitude 1206 ig.Sof 



Green fissile shale and interbedded flaggy sandstone, 

 some sandstone dull red 5570 269 3131 



Road N. 35° E. 

 Green fissile shale. Dip 45° E 5920 64 3067 



Road N. 65° B. Map altitude 1130 

 Green fissile shale, some red 6170 147 2928 



Road N. 20° E. Map altitude 1100 

 Fissile green shale 6570 1 2921 



Road N. 75° W. Map altitude 1070. Acute turn to north in going west 



Green fissile shale. Beds flaggy sandstone, some dull-red 

 shale. Spirifer marcyi var. superstes, zone probably at 

 bottom of this unit. Dip 55° E. Horizon of lower Che- 

 mung conglomeate 6920 231 2690 



Green fissile shale. Some dull-red. Much " kindling- 

 wood " fracture. N. 32° E. 47° E 7420 350 2340 



Fissile green shale 7745 226 2114 



Road N. 35° E. Map altitude 980. House at turn of road 



Olive-green shale, some hackly. Sandstone at bottom. . . 8095 27 2087 

 Fissile green shale 8895 65 2022 



Road N. 80° E. Map altitude 800 



Mostly fissile green shale. Some red " kindling-wood " 

 shale at top. Spirifer disjunctus occurs at 9200 horizon- 

 tally (1850 vertically) 9295 229 1793 



Parkhead Sandstone Member 

 Road N. 95° W. Map altitude 780 



Mostly fissile green shale. Some breaking irregularly, 

 some sandstone, some red shale at top. N. 35° E. 50° E. 

 Camarotccchia congregata var. parkheadensis occurs at 9745 

 (1500 vertically) 9945 422 1371 



Green fissile and hackly shale and interbedded sand- 

 stone. Liorhynchus sp. near base 1029.5 227 1144 



End of section at fork of road. Map altitude 745 1029.5 1144 



