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Common terms and phrasesacre alteration Amer Aquia Atlantic Coastal Plain average Baltimore and Ohio bank beds belt beneath biotite Cecil county Cecil loam character Chesapeake Bay Chestnut chlorite clay color Conowingo constituents crop crystalline rocks Delaware developed dikes east eastern Elk Neck Elkton Eocene epidote erosion estuaries exposed exposures feet feldspar forest fossils gabbro Geol gneiss granite granite-gneiss hornblende hypersthene igneous rocks inches intrusive iron kaolin land lower Maryland MARYLAND GEOLOGICAL SURVEY Matawan material meta-gabbro metamorphism mica mica-gneiss miles mineral norite Northeast occurs Octoraro Creek overlain Patapsco Patuxent Pennsylvania peridotites Piedmont Plateau Plate Port Deposit portion Potomac group present Principio pyroxene pyroxenites quarry quartz Raritan formation region sand and gravel Sassafras river serpentine shore shore-line shows soils southern streams Sunderland surface Susquehanna river Talbot formation temperature terrace timber tion unconformably Upper Cretaceous varies Wicomico width References from web pagesCECIL COUNTY, MARYLAND Linkpendium > Genealogy > USA > Maryland > Cecil County Geologic Maps of Maryland: Cecil County Cecil County - links Ground-Water Resources of Big Elk Creek Basin, Pennsylvania and ... County Maps Chicago Journals - International Journal of Plant Sciences Maryland State Archives, Guide to Special Collections JSTOR: New Maps ARCELLITES STELLATUS NEW SPECIES, A NEW MEGASPORE FROM THE LOWER ... Bibliographic information |