Ixxxviii 



GEOLOGICAL AND PALEONTOLOGIOAL RELATIONS 



Pleistocene. 



Miocene. ^ ^ 



o S 



V. Section one mile north of Plum Point. 



Feet. Inches. 



Yellowish sandy loam 7 



Yellowish sandy clay (Zone 15) 19 



Yellowish sand carrying Isocardia fraterna 



(Zone 14) 7 



Bluish and brownish sandy clay (Zone 13) 25 



Brownish sand (Zone 12) 4 6 



Bluish clay grading downward into brown sand 



(Zone 11) 10 6 



Yellowish brown sandy clay bearing the following 

 fossils: Siphonalia devexa. Ecphora tricos- 

 tata, Turritella plebeia, T. variaMlis; T. va- 

 riabilis var. cumber laiidia, Polynices heros, 

 Corbula ina'qualis, Phacoides anodonta, Cras- 

 satellites melinus. Astarte cuneiformis, Pecten 

 madisonius, Venus rileyi, cMone latilirata, 

 Cytherea staminea, Melina maxillata, Atrina 

 harrisii. Area suhrostrata, Glycimeris parilis, 

 etc. (Zone 10). 

 Bluish green clayey sand carrying Gorbula ele- 



vata ( Zone 9 ) 2 



Bluish green clayey sand carrying imperfect 



casts of Gorbula elevata ( ?) (Zone 8) 10 



Bluish green clayey sand containing large num- 

 bers of Gorbula elevata (Zone 6) 3 



Bluish green clayey sand containing fossil 

 casts of Gorbula elevata (Zone 5) 3 



Total 100 



Pleistocene. 



Miocene. >■ g 



VI. Section at Plum Point. 



Feet. 



Yellowish sandy loam and gravel 14 



Yellowish sandy clay bearing characteristic fossils 

 (Zone 10) 2 



Greenish sandy clay carrying scattered layers of Gor- 

 bula elevata ( Zone 9 ) 2 



Greenish blue clayey sand carrying few imperfect fos- 

 sils ( Zone 8 ) 10 



Bluish clayey sand carrying Gorbula elevata (Zone 6) 1 



Total 29 



Miocene. 



VII. Section one mile south of Plum Point Wharf. 



Feet. Inches. 



Fossiliferous yellowish sandy clay grading into 



yellow sand in its lower portions (Zone 15) 48 6 



Brownish sandy clay containing Isocardia fra- 

 terna ( Zone 14 ) 7 



Bluish clay breaking with conchoidal fracture 



(Zone 13) 13 6 



Brownish sandy clay carrying imperfect fossil 



casts (Zone 12) 2 6 



Unfossiliferous bluish clay (Zone 11) 11 



Greenish sand bearing characteristic fossils 

 (Zone 10) 9 



^ a 



Total 91 



