VIRGINIA GEOLOGICAL SURVEY. 



PLATE V. 



Fig. 1.— Base of bluff at nioudi of Aquia Cii'i-k. Sliowino- zones 2 and 4 of Anuin 

 formation. " ' 



Fig. 2.— Bluff near niouH: cf Aquia (reek. Sli..\viii<. blocks of indurated marl 

 derived from zone !) of A(iuia formal ion. lar-elv comixised of slu-lls of Turritclht 

 iiiur/oni. 



AQV]A FOiaiA'l [ON. 



