24d. Topography Summary : CT 3 , CT 4 



Land form: relict beach ridge 



Shelter: open to partly sheltered 



Aspect: flat 



Slope Angle : nearly level 



Profile : gently convex 



Surface patterns: smooth, with local hummocks and depressions caused 

 by windthrow of trees and possibly by removal of stumps for sale. 

 Position: on the nearly flat crest of Minnesott Ridge. 



25. Physiographic characterization of natural area: 



Fire-maintained climax wetland and transitional upland pine com- 

 munities of a psammosere on a beach ridge and marine scarp system, 

 underlain by Pleistocene marine sands, draining into the Neuse, Bay 

 and Pamlico Rivers, and in the Outer Coastal Plain Region of the 

 Embayed Section, Coastal Plain Province. 



Geological Formation: 



Underlain by Minnesott Sand (relict beach and dune deposits) , 

 over units of the Flanner Beach Formation, over pre-Quaternary rocks 

 of the Yorktown Formation. The Grantsboro Scarp marks the boundary 

 of the Pamlico Terrace to the east and the Chowan Terrace to the west. 



Geological Formation age : 



Minnesott Sand - Pleistocene epoch; "lower Wisconsin and/or 

 upper Sangamon (?) " interglacial, 50,000 to 

 75,000 years. B.P. 



Flanner Beach Formation - Pleistocene; "lower Sangamon or pre- 

 Sangamon (?) " 100,000 years B.P. 



Yorktown - Pliocene or Miocene; 7,000,000 years B.P. 



References Cited: 



Reconaissance Geology of the Submerged and Emerged Coastal Plain 

 Province, Cape Lookout Area, North Carolina. Robert B. Mixon and 

 Orrin H. Pilkey. USGS Professional Paper 859 (1976) . 



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