Maryland Geological Survey 



79 



Cretaceous. 

 Magothy . . 



Feet. 

 White to chocolate-colored extremely fine loose sand 

 containing small pieces of lignite in rather definite 

 hands. 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 S3. 



Pleistocene. Feet. 



["Reworked Matawan glauconitic sand 9 



Wicomico. . •! Pehble and boulder hand, 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. . . -j Loose fine white sand containing considerable lignite. . 3% 

 L Loose yellow sand to water's edge 1% 



Total 33% 



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, oetween Mileposts 92 and 93. 



Pleistocene. 



Wicomico. 



Cretaceous. 

 Matawan. . 



Magothy. . 



Feet. 



f Loamy reworked glauconitic sand 5 



Gravel and pebble lens, some pebbles 4 inches in 



diameter 1% 



Reworked glauconitic sand 3 



Gravel band with matrix of glauconitic sand ce- 

 mented by iron oxide in places 1 



.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 1%-: 



] 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 



L of large size 9 



Total 31 



