Smithsonian Report, l939.^Bassler 



Plate 7 



■-0,--- - 



■^?L?!v :. I on/£:/? C/iETACEOaS (POTOMAC) 

 i| Vi " : • j; ■ 3 A NDS A ND GRA VELS 



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■^^ 



ti'. i'- 



P/^ECAMBRIAN SCHIST 

 NORMAL POSmON BEFORE FAULTING 



SCHIST , i 





.^ .-^. 



LiS'''-^'^ SAND AND GRAVEL 



SCHIST 

 POSITION AFTER FAULTING 



1 COPY OF THE EXHIBITION LABEL EXPLAINING STRUCTURE OF THE AREA ALONG 

 ADAMS MILL ROAD NEAR ZOO GATE. BEFORE AND AFTER FAULTING. 



2. Shelter Containing Overthrust Fault Exhibit Along Adams Mill 

 Road near Zoo Gate. Fault Indicated by Dotted Line. 



