01016cam a22002651 4500001001300000003000400013005001700017008004100034010001700075035001900092040002600111042001200137050002300149051002600172100003400198245011500232260004800347300005300395410005600448500013600504504003100640650001300671650004200684650002400726gs 41000121 DLC20260227111346.0780708s1941 dcuabf b f000 0 eng  ags 41000121  a(OCoLC)4032484 aDLCcOClUdOCoLCdDLC apremarc00aQE75b.P9 no. 198. aTN490.T6bR6cCopy 2.1 aRoss, Clarence Samuel,d1880-10aOccurrence and origin of the titanium deposits of Nelson and Amherst counties, Virginia,cby Clarence S. Ross. aWashington,bU.S. Govt. Print. Off.,c1941. aiii, 59 p.billus. (map) 19 pl. on 10 l.c29 cm.20aGeological Survey (U.S.).tProfessional paper,v198 aAt head of title: United States Dept. of the Interior, Harold L. Ickes, secretary. Geological Survey. W. C. Mendenhall, director. aBibliographical footnotes. 0aTitanium 0aMines and mineral resourceszVirginia 0aPetrologyzVirginia