100 PHYSIOGRAPHY AND GEOLOGY OF THE COASTAL PLAIN PROVINCE. 



II. Section right hank of Mattaponi River at first county bridge below 

 R. F. & P. R. R. crossing. 



Feet 



Pleistocene Concealed 8 



Eocene. Aquia Dark colored greensand with casts of Tur- 



riiella mortoni in a layer, 1 foot above 

 water level, and with light drab clay lenses 

 in upper part 5 



Total 13 



SECTIONS ALONG PAMUNKEY RIVER. 



The Aquia formation occurs as a continuous bed for a distance of many 

 miles along the Pamunkey Eiver. It is, however, less fossiliferous here than 

 along the Potomac Eiver. 



I. Section right bank of Pamunlcey River on farm at Reformatory, about 



one and one-half miles southeast of Hanover Courthouse. 



Feet 

 Pleistocene Coarse yellow sands, cross-bedded, with 



occasional gravel layers 12 to 15 



Eocene. Aquia Dark greenish-black micaceous sandy 



marl with many black grains of glau- 



conite and a few shells 10 



Covered 6 



Total 31 



II. Section in small ravine about one-eighth mile southeast of Wickham. 



Feet 



Pleistocene Concealed 3 



Coarse, yellowish-gray sand 6-8 



Eocene. Aquia -Dark green to greenish-black marl, highly 



fossiliferous, the shells being much decom- 

 posed, among them being Turritella mor- 

 toni, Crassatellites alaeformis, and Ostrea 



compressirostra 5 



Coarse gravel bed with pebbles from i/^ inch 

 to 4 inches thick and with dark greensand 

 lenses 2-f 



Total 18 



III. Section along river road about three and one-half miles southeast of 



Hanover Courthouse. 



Feet 



Pleistocene Yellowish sands with gravel 4-6 



Drab clay with yellow streaks 6-8 



Compact j^ellow sandy clay 1- 



Eocene. Aquia Weathered, incoherent, greensand, stained 



brown in places 3 



Total 18 



