MARYLAND GEOLOGICAL SURVEY 75 



surface of the highest to that of the lowest terrace present, amounts to the 

 vertical distance which would normally be expected to exist between 

 them (Fig. 5). The best example of this is to be seen along the Bay 

 shore between Chesapeake Beach southward to Drum Point. Through- 

 out most of this distance the surface of the Sunderland terrace, lying at 

 about 100 feet above tide, is separated from that of the Becent terrace 

 at sea level by a cliff 100 feet in height. The Wicomico and Talbot 

 terraces and their accompanying scarps are here absent and the descent 

 from the Sunderland to the Becent terrace is accomplished by a precipice 

 which makes the famous Calvert Cliffs (Plate VIII, Fig. 1, and Plate 

 XXI). 



LAFAYETTE 





TALBOT 









i'it i ^.;<.-;'-i. ; »'; - H'-'h, 



\3T7z\ 





\ 



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X 







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vH=£is 











Fig. 5. — Diagram showing Lafayette-Talbot scarp with the Sunderland and 

 Wicomico terraces absent. 



Occasionally the surface of the Talbot and Wicomico terraces is modi- 

 fied by the presence of subordinate terraces separated by low scarp-lines. 

 These secondary terraces are irregularly developed and, as a rule, are not 

 extensive. They occur principally in the valleys of the important estu- 

 aries and along the banks of those tributaries which drain the surrounding 

 upland. The most important of these minor scarps is developed on the 

 Talbot terrace, facing the Atlantic ocean, and extends from near Berlin 

 south westward to the vicinity of Newark. It rises from 25 to about 35 

 feet and is a noticeable physiographic feature throughout the region where 

 it is developed. (Plate XXII, Fig. 2). 



