01253nam a2200229Ia 450000100070000000500170000700800410002402000050006504000100007004900070008008200220008710000410010924502720015026001450042230000350056750400510060265000800065365000430073365000500077699900190082695201780084525120720160527185941.0010912e        xxu    gr     000 0 eng d  c  aPUCPR  bev00222a557.55bP881e1 aPowars, David S.     2Local926563114aThe effects of the Chesapeake Bay impact crater on the geologic framework and the correlation of hydrogeologic units of southeastern Virginia, south of the James Rivercby David S. Powars ; prepared in cooperation with the Hampton Roads Planning District Commission.   aReston, Va.bU.S. Dept. of the Interior, U.S. Geological SurveyaDenver, CObFor sale by U.S. Geological Survey, Information Servicesc2000.  aiv, 53 p.bill., mapsc28 cm.   aIncludes bibliographical references and index. 0aCryptoexplosion structureszChesapeake Bay (Md. and Va.)     2Local982638 0aHydrogeologyzVirginia.2Local9113600 0aGeology, StructuralzVirginia.2Local9101971  c180557d180557  00102ddc406557_550000000000000_P881E708evl9100680a10b10c1d2016-05-27eFederal Depositoryi348263l0o557.55 P881ep80000002036484r2016-05-27 00:00:00xr:251207y6