Maryland Geological Survey 79 



Cretaceous. Feet. 



Magothy .... White to chocolate-colored extremely fine loose sand 

 containing small pieces of lignite in rather definite 

 bands. This layer grades horizontally (to the west) 

 into black plastic clay containing much lignite. 

 Many pieces of lignite are coated or infiltrated with 

 pyrite and marcasite. Exposed to water's edge 5 



Total 16 



VII. Section south side of Chesapeake and Delaware Canal 1% miles east 



of Pivot Bridge, opposite Milepost 83. 



Pleistocene. Feet. 



("Reworked Matawan glauconitic sand 9 



Wicomico. . \ Pebble and boulder band, some angular boulders as 



[_ much as 3 feet in greatest diameter 3 



Cretaceous. 



Matawan Mottled dark micaceous glauconitic sand with blotches 



of lighter color; discontinuous indurated ledge of iron 



stone 3 inches thick at base 15 



["Black plastic clay containing much lignite 1% 



Magothy. . . i Loose fine white sand containing considerable lignite. . 3% 

 (^ Loose yellow sand to water's edge 1% 



Total 331/2 



The two lower layers of the above section grade horizontally (to the west) 

 into a layer of black plastic clay containing lignite and siderite nodules. 



VIII. Section north side of Chesapeake and Delaware Canal, % mile west of 



Summit Bridge, between Jdileposts 9.1 and !)3. 



Pleistocene. Feet. 



f Loamy reworked glauconitic sand 5 



Gravel and pebble lens, some pebbles 4 inches in 



diameter IV2 



Reworked glauconitic sand 3 



Gravel band with matrix of glauconitic sand ce- 

 mented by iron oxide in places 1 



Cretaceous. 



Matawan. . . .Glauconitic sand containing much mica, occasional 



small pebbles at base 3 



-Layer lignite with little other material present in 

 certain places while in other places there is a 

 considerable admixture of black plastic clay with 

 fossil plants. Lignitized logs have been bored by 



Teredo. Occasional siderite nodules at top l%-2 



i Extremely fine white loose sand in which are thin 

 bands of plastic black clay containing lignite... 6 

 Loose buff to yellowish brown to salmon-colored 

 sand containing many irregular iron crusts, some 

 of large size 9 



Wicomico. 



Total 31 



