i 



-5 o C 



■5«l 



O 



Pu 



11.1 



2556 



13.9 



2542 



27 



2515 



33.5 



2482 



87.7 



2394 



24.4 



2370 



36.3 



2333 



24.4 



2309 



18.6 



2290 



32.5 



2258 



492 The Upper Devoxiax Deposit-s of Maryland 



.- c t: o 

 j7 c - ■*-' 



a 0-5-" 



Green shale breaking irregiilaily 2881 



Massive green sandstone 2896 



Green shale breaking irregularly 2925 



Concealed 2961 



Ravine 2961 



Fissile green shale. Dip 75° W 3055 



Green shale breaking irregularly 3081 



Fissile green shale 3120 



Smooth and hackly olive-green shale 3146 



Fissile brown shale 3166 



Fissile green shale 3201 



Green shale breaking irregularly and interbedded sand- 

 stone. Dip 75° W 3218 15.8 2242 



Green argillaceous shale, carrying at bottom Spirifer dis- 

 junct us, Spirifer (Belthyris) mesacostalls, 8. mesastrialis. . 3262 42 2200 



Green shale breaking irregularly 3311 45.7 2154.3 



Brown sandstone 3319 7.4 2147 



Green shale breaking irregularly and bands of sand- 

 stone. Dip 68° W. Carrying at bottom Spirifer disjunctus 

 abundant, Cyclotiemina multistriata, Loxonema stylioluvi 



abundant, Palwoneilo plana 3344 22.5 2124 



Parkhcad Sandstone Member 



Limit of Flintstone-Pawpaw quadrangles 3364 



Green Shale 3435 



Concealed 3514 



Ravine 3514 



Green shale and flaggy sandstone. Dip 68° W 3565 



Green shale and shaly sandstone 3620 



Hackly green shale and sandstone 3696 



Shaly sandstone carrying at the bottom Atrypa reticu- 

 laris, Camarotwchia congregata var. parkheadensis, Pro- 

 ductella lachrymosa, Spirifer marcyi var. superstes abun- 

 dant, S. {Delthyris) mesacostalis common, Tropidoleptus 

 carinatus common, Coleolus teniiicinctus, Loxonema sty- 

 lioliim 3706 8.9 1794 



Railroad N. 85° W. 



Green shale 3735 25.5 1769 



Massive sandstone carrying at bottom Ambococlia urn- 

 bonata, Schizodus oTierni, Bucanopsis mwra, Platyceras 

 marylandicum ?, Cypricardella gregaria var., Palwoneilo 

 hrevis common 3742 6.1 17(i3 



81.7 



2043 



71 



1972 



45.S 



1926 



49 



1877 



73.5 



1803 



