76 



The Upper Cretaceous Deposits of Maryland 



LOCAL SECTIONS 



/. Section at " Red Hill," along the west slope of Gray's Hill, Cecil County. 



beginning at 200 feet above tide. 

 Cretaceous. Feet. 



r Coarse reddish sand and evenly-bedded dark brown 



Raritan .... J sandstone ledge 10 



1 Yellow and buff sand and corrugated iron stone 10 



LTough 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 



Feet. 

 0-24 



Monmouth . 



III. Section of Well at Fort Dwpont, Newcastle County, Delaware. 

 Pleistocene. 



Talbot Yellowish sand and fine gravel, brackish water. 



Cretaceous. 



("Gray, slightly clayey sand and fine gravel 24-40 



Ran cocas. . .-! Dark greenish, limy sand with shells, contains 



[_ much glauconite 40-60 



f Dark sandy micaceous clay 60-140 



\ Medium gray sand with very little glauconite 140-160 



(^Brownish gray sandy clay with some glauconite. . . 160-180 



-Dark coarse sand and clay, some glauconite 180-197 



Hard, light red, slightly sandy clay 197-223 



Dark, micaceous, sandy clay 223-240 



Pine to medium drab or brownish gray, clayey sand 



with a little glauconite 240-280 



Fine to coarse brownish, micaceous clay with some 

 „ glauconite 280-300 



(Medium to coarse drab or brownish sand with vary- 

 ing amounts of glauconite and occasionally some 

 clay 300-418 

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

 little glauconite 418-421 



Mataw.' 



tn.-.J 



