01158cam a22002891  4500001001300000003000400013005001700017008004100034010001700075035001900092040005300111042001200164050002200176086001600198100004600214245013200260260004800392300006000440410005500500504002800555650005400583650006500637650005900702740005000761740004000811999001700851gs 65000272 DLC20260227111417.0780308s1965    dcua         f000 0 eng c  ags 65000272   a(OCoLC)3696601  aU. S. Geol. Survey. Libr.cUSlWdISSdOCoLCdDLC  apremarc00aQE75b.P9 no. 4840 aI 19.16:4841 aHack, John T.q(John Tilton),d1913-1991.10aGeomorphology of the Shenandoah Valley, Virginia, and West Virginia, and origin of the residual ore deposits,cby John T. Hack.  aWashington,bU.S. Govt. Print. Off.,c1965.  aiv, 84 p.billus., maps (3 fold. col in pocket)c30 cm.20aGeological Survey (U.S.).tProfessional paperv484  aBibliography: p. 77-79. 0aGeologyzShenandoah River Valley (Va. and W. Va.) 0aPhysical geographyzShenandoah River Valley (Va. and W. Va.) 0aOre depositszShenandoah River Valley (Va. and W. Va.)0 aShenandoah Valley, Virginia and West Virginia0 aOrigin of the residual ore deposits  c30057d30057