90 



THE GEOLOGY OF ST. ilAKY S COUNTY 



all the gravels, sands, and ela^ys overlying the pre-Lafayette deposits 

 and extending from the base of the Sunderland-Wicoihico escarpment to 

 the base of the Wicomico-Talbot escarpment. Perhaps, however, ma- 

 terials of later age may occasionally rest upon remnants of the Lafayette 

 and Sunderland formations, and the same is true of the Talbot formation. 



Local Sections. 

 The materials which compose the Sunderland formation vary rapidly 

 from place to place. The following sections, however, will give au idea 

 of the character of this formation. 



I. Section in road hdilinff from Lconariltotcn to Wharf. 



■C t; I Tougli red snud.v clay aud gravel 



Sandy clay carrying decomposed gravel and boulders 



« S I G 



aish sandy clay. 



z S 1 Obscured . 

 Total 



100 



II. Section 1 mile u-cst of Leonardtoun on rood Icadinp toicard Mcintosh Run. 



Feet. Inches. 



Yellow sandy clay 3 



Drab sandy clay and gravel with red mottling 5 



Drab .sandy clay with red mottlings carrying boulders. 1 



Drab sandy clay and gravel with red mottlings ."! 6 



Red sandy clay and gravel 5 



Hed sandy clay carrying gravel and decayed chert 



pebbles 4 



Obscured 16 



2.1 r 



•all) 

 b L 



I Fine bedded sand and gravel 3 



o a I Reddish sand, depth unknown 10 



Total 



31 



III. Section on road at St. Clement Creek 1.5 milci north of Morganza. 



~ Feet. Inches. 



I Brownish red sand. 

 I Iron crust 



Fossiliferous sandy clay 48 



Total 51 



