74 



The Lower Cretaceous Deposits of Maryland 



yj. Section of Belt Line cut near Eastern boundary, Baltimore City, beginning 



180 feet above tide. 



Pleistocene. Feet. 



Sunderland 



Cretaceous. 

 Patapsco 



Arundel 



Patuxent 



.Brown more or less gravelly loam, at times with re- 

 worked iron crusts. Occasional loose ferruginous 

 sandstone masses at base 



20 



Hard, irregularly bedded, buff sand with thin corru- 

 gated plates of iron sandstone toward the eastward. . 0-15 



Mostly massive dark red, yellow or mottled clay some- 

 what sandy, locally wanting 0-20 



White and varicolored, often micaceous and cross 

 bedded sand and sandy clay, with crusts and ledges 

 of sandy mammalary limonite near the top 20 



Coarse white sandy micaceous gravel, locally indurated 

 toward summit by hydrous iron oxide, exposed. .. .10-20 



Total 95 



VII, Well section at " Smith's Distillery," Baltimore. 



Tyson published in 1860 a record of strata penetrated by this well on North- 

 west harbor, which presents a typical Patuxent section. The well began at 

 10 feet above tide. 



Feet 

 River mud > 52 



Recent . . . 

 Cretaceous. 



Patuxent . 



Crystallines 



f Sand, gravel and boulders 6 



Hard blue clay 9 



Red clay 6 



Red ocher 5 



White sand 4 



White clay 32 



White sand and gravel, water-bearing 8 



White sand, gravel and boulders, water-bearing 7 



Gneiss 7 



Total 129 



VIII. Well section at Torsch Packing Company, ChesapeaTce Wharf, 

 Baltimore, beginning 10 feet above tide. 



Feet. 



fShells 8 



Recent J Mud 7 



|_Mud with shells and gravel 7 



Cretaceous. fRed clay 8 



White clay 15 



Sandy white clay 15 



Patuxent . J gand rock 5 



Impervious white clay 15 



Water-bearing white sand , . 22 



.Estimated to bed rock 48 



Total 150 



