8 



c 



o 



III 



<C.S 



6 



3417 



0.5 



3411 



6.2 



3410 



12.3 



3404 



8 



3392 



0.9 



3384 



1.3 



3381 



11.5 



3380 



13.5 



3368 



498 The Upper Devoxian Deposits of Maryland 



to <U t:*S 



Shale breaking irregularly 5049.5 



Fine-grained conglomerate. Dip 35° E 5038.5 



Sandstone 5037.5 



Green concretionary sandstone. At the top occur Spirifer 

 (Delthyris) mesacostalis abundant, 8. m.csastrialis abun- 

 dant 5028 



Green shale breaking irregularly 5009 



Upper Chemung conglomerate. One foot above conglom- 

 erate occur Ambocalia umbonata, Atrypa spinosa, A. reticu- 

 laris, Spirifer (Delthyris) mesacostalis 4996.5 



Red sandstone 4992 



Green sandstone and interbedded shale. Sandstone rip- 

 ple marked. Dip 45° E 4990 



Green shale breaking irregularly 4972 



Concealed. On hillside north of railroad occur at 4509 

 horizontally (3048 vertically) Spirifer disjunctus, at 4614 

 horizontally (3137 vertically) Sp. mesastrialis, 4789 hori- 

 zontally (3250 vertically) Sp. mesacostalis 4949 



Green fissile shale 4338 



Red sandstone and arenaceous red shale 4304 



Red shale breaking irregularly 4282 



Fissile green shale and bands of sandstone 4268.5 



Massive red sandstone 4210.5 



Fissile red shale 4208 



Olive-green fissile shale and bands of green sandstone. 



At top occurs Spirifer mesastrialis 4202 



Arenaceous red shale. Dip 40° E 4172 



Fissile green shale and flaggy sandstone 4164 



Green shale breaking irregularly. Dip 42° E 4048 



Olive-green shale breaking irregularly. At top in green 



shale occurs Amhocfrlia umbonata 3936 32.5 2751 



Sandstone at bottom, grading upward into coarse hackly 

 shale and flaggy sandstone. Spirifer marcyi var. superstes, 

 Ambocwlia umbonata, Tropidoleptus carinatus, Goleolus 

 tenuicinctus were found in a fine-grained sandstone 25 feet 

 east of bottom of unit =: 2961 vertically above bottom of 



section 3886 



Fissile green shale 3818 



Massive fine-grained green sandstone 3801 



Olive green shale breaking irregularly 3793.5 



Massive greenish-gray sandstone. Dip. 45° E 3764.5 



Coarse conglomerate, lower Chemung conglomerate 3761.5 



361.4 



3355 



20 



2993 



13 



2973 



7.9 



2960 



34.3 



2952 



1.4 



2918 



3.5 



2917 



17.7 



2913 



4.7 



2896 



71 



2891 



69 



2820 



44 



2718 



11 



2674 



5 



2663 



19 



2658 



1.9 



2639 



1.3 



2637 



