02073oam 2200433zu 450 99621716780331620210807004632.01-118-66720-4(CKB)3450000000004185(SSID)ssj0001034054(PQKBManifestationID)11572410(PQKBTitleCode)TC0001034054(PQKBWorkID)11006604(PQKB)10493026(NjHacI)993450000000004185(PPN)189688947(EXLCZ)99345000000000418520160829d2013 uy engur|||||||||||txtccrTitaniun-Mineral Deposits of the Roseland Anorthosite-Ferrodiorite Terrane, Blue Ridge Province of Central Virginia: Nelson and Amherst Counties, Virginia, July 15-16 1989[Place of publication not identified]American Geophysical Union20131 online resource (346 pages)Bibliographic Level Mode of Issuance: Monograph0-87590-626-5 Grenvillian terranes of eastern Canada are characterized by large titanium deposits and the association anorthosite-ferrodiorite-charnockite-granulite. The Roseland district of Nelson and Amherst Counties in central Virginia (figure 1) is the only terrane of the southern Appalachians known to have this association; titanium deposits include rutile in the anorthosite border zone and ilmenite in nelsonite and ferrodiorite. The anorthosite is unusually alkalic with a combined Na20 + K20 content of 8.4% (Table 2), about 1½ times the world average for massif anorthosites (Nockolds, 1954).TitaniumTitanium.669.7322Herz NormanForce EricPQKBBOOK996217167803316Titaniun-Mineral Deposits of the Roseland Anorthosite-Ferrodiorite Terrane, Blue Ridge Province of Central Virginia: Nelson and Amherst Counties, Virginia, July 15-16 19892173544UNISA