76 



The Upper Cretaceous Deposits of Maryland 



Cretaceous. 



Raritan. 



LOCAL SECTIONS 



Section at " Red Hill,'" along the ivest slope of Gray's Hill, Cecil County, 

 beginning at 200 feet above tide. 



Feet. 

 r Coarse reddish sand and evenly-bedded dark brown 



J sandstone ledge 10 



*] Yellow and buff sand and corrugated iron stone 10 



L Tough white clay reddish in places 7 



Patapsco Massive variegated red and drab clay, the latter 



slightly lignitic and containing obscure leaf impres- 

 sions. Lenses of white, water-bearing sand near base. 130 

 Patuxent Sand, not exposed at surface, to tide level 43 



Total 200 



II. Shannon Hill near Northeast, Cecil County. 

 Pleistocene or Feet- 

 Recent Loam and red clay 5-10 



Cretaceous. 



' Raritan Dense plastic chocolate colored clay with flakes of iron 



carbonate carrying leaf impressions 10 



Light colored sand 8 



Sandy chocolate colored clay 10 



Drab and light colored clay and sand grading into 



next member 8 



Patapsco. . . «j Chocolate clay, slightly lignitic 7 



Variegated clay 18 



White sand 1 



Variegated clay 35 



^ Yellow and purple sand and ferruginous sandstone. ... 5 



Total 112 



HI. Section of Well at Fort Dupont. Newcastle County, Delaware. 

 Pleistocene. 



Talbot 



Cretaceous. 



Rancocas. . 

 Monmouth. 



.Yellowish sand and fine gravel, brackish water.. 



Matawan. 



Magothy. 



("Gray, slightly clayey sand and fine gravel 



\ Dark greenish, limy sand with shells, contains 



[_ much glauconite 



C Dark sandy micaceous clay 



\ Medium gray sand with very little glauconite 



^Brownish gray sandy clay with some glauconite. . . 



Dark coarse sand and clay, some glauconite 



Hard, light red, slightly sandy clay 



Dark, micaceous, sandy clay 



Fine to medium drab or brownish gray, clayey sand 



with a little glauconite 



Fine to coarse brownish, micaceous clay with some 



glauconite 



Medium to coarse drab or brownish sand with vary- 

 ing amounts of glauconite and occasionally some 



clay 



Fine to medium, light gray sand, no clay and very 

 little glauconite 



Feet. 

 0-24 



24-40 



40-60 

 60-140 

 140-160 

 160-180 

 180-197 

 197-223 

 223-240 



240-280 



280-300 



300-418 

 418-421 



