Maryland Geological Survey 



77 



Cretaceous. 



Raritan. 



Patapsco . 



Feet. 



Light, brick-red clay with some sand 421-467 



Pink to medium, slightly clayey, pinkish buff or 



pinkish brown sand 467-500 



Pine to medium brownish gray micaceous sand... 500-510 

 Medium to fine pinkish brown sand with red and 



white clay 510-640 



Fine to medium light brown micaceous sand and 



clay 640-650 



Brownish gray, micaceous, clayey sand containing 



lignite 650-661 



'Fine to medium pinkish brown sand with beds of 



pink, red and white clay and lignite 661-710 



Medium varicolored sand with lignite 710-725 



Coarse, light pinkish brown sand 725-730 



Light brown sand containing many brown granules, 



also lignite 730-734 



Dark, brownish clay and coarse sand 734-736 



Medium, pinkish brown, clayey sand 736-740 



Brown clay with coarse sand, contains lignite 740-745 



Medium, brownish, clayey sand 745-750 



Fine to coarse pinkish brown sandy clay containing 



brown granules and lignite 750-755 



L Medium, grayish brownish clayey sand 755-762 



IV. Section west side of Maulden Mountain (Lower White Banks), Elk Neck. 



Magothy. 



Recent Wash material 



Cretaceous. 



'Laminated white sand alternating with white clay 



dense of pink sand at the top) 



Irregular ledges of ironstone 



Cross-bedded pink or yellow loose sands with some 



iron crusts (full of bank-swallows' holes) 



White clay 



Ironstone ledges 



.Fine quartz pebbles with some pellets of white clay. 

 Cross-bedded yellow sand passing into a pink sand 



with occasional thin lenses of ironstone 



Gray to buff sand 



Ledge of ironstone 



Cross-bedded brown and yellow, often indurated 



sand 



Alternating white clay with pellets of red iron oxide 

 Raritan ...... and buff to white finely laminated sand with white 



clay pellets and occasional ledges of ironstone. . . 

 Cross-bedded yellow sand with irregular ironstone 



layers, sometimes forming massive ledges 



Mottled pink and white clay passing gradually into 



next member 



Laminated white sandy clay, in places passing into 



an ash-colored sand 



-Fine white sand with pellets and lenses of clay. . . . 

 /Dark drab clay containing lignite, white clay at the 

 \ top and sometimes brown clay below 



Feet. 

 6-8 



20 



4% 



6-8 



2-3 



2V 2 -3 



iy 2 -3 



10 

 12 

 1-3 



12% 



Patapsco. 



