S  T  R  A  T  I  G  R  A  P  H  Y Legend    Q - Quaternary formations      fluvial and estuarine, silt, sand, and clay    Tbc -  Bacons Castle Formation      fluvial-deltaic and tidal, gravel, sand, and clay      Ty -  Yorktown Formation      marine, fossiliferous sand    Te -  Eastover Formation      marine, sand and clay    Tb -  Bon Air Gravel      fluvial, gravelly sand, silt, and clay    Tex -  Exmore Breccia    TK -  Older Tertiary and Cretaceous formations      marine and deltaic, sand and clay
			Terrace Stratigraphy of the Virginia Coastal Plain (PDF) APPALACHIAN PLATEAU | VALLEY & RIDGE | BLUE RIDGE | PIEDMONT | COASTAL PLAIN
		(9/10/99)