98 PHYSIOGRAPHY AND GEOLOGY OF THE COASTAL PLAIN PROVINCE. 



VII. Section left bank Rappahminock River, one mile above mouth of 



Muddy Creek. 



Feet 

 Pleistocene Yellow sand and gravel 22 



Eocene. Aquia Dark green argillaceous sand lighter in color 



where weathered. No fossils 40 



Total 62 



A half mile below the mouth of Muddy Creek, Aquia greensand is 

 poorly exposed in the river bluff rising to a height of 10 feet above the 

 water, while on the right bank of the river about 1% miles below 

 Muddy Creek light greenish-gray Aquia sand appears at the base of a 

 50-foot bluff. The greater portion of the bluff consists of Pleistocene sand 

 and gravel. 



VIII. Section left bank of Rappahannock River one and one-quarter miles 

 above the mouth of Ware Creek. 



Feet 

 Pleistocene Yellow sand and gravel with a line of large 



cry sta line rock and quartz cobbles at base 28 

 Greenish-gray, sandy clay and fine-grained 

 stratified carbonaceous and argillaceous 



sand 



14 



Eocene. Aquia 



Band of coarse gravel with cobbles and 

 boulders 2 



Dark green, argillaceous sand with fossils 

 principally Turritella mortoni; also Cras- 

 satellites alaeformis, Modiolus alabamen- 

 sis, Meretrix ovata, Ostrea compressiros- 

 tra, Lunatia marylandica, Corhula aldri- 

 chi, Diplodonta hopkinsensis, Crassatelli- 

 tes sp 2 



Total 46 



IX. Section right bank of Rappahannock River just below mouth of 



Ware Creek. 



Feet 



Pleistocene Not well exposed but principally composed 



of gravel and sand 20 



Eocene. Aquia Greenish-gray argillaceous sand. Fossils oc- 



cur near the top of bed which is not well ex- 

 posed. At the base there is a layer of 

 shells containing numerous specimens of 

 Turritella mortoni. Other species are the 

 same as those in preceding section. Por- 

 tions of this fossil layer are indurated. ... 15 



Total 35 



