01502nam 2200433 450 991071200670332120190503122555.0(CKB)5470000002490039(OCoLC)1099798065(EXLCZ)99547000000249003920190503d2011 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierCarbonatite and alkaline intrusion-related rare earth element deposits a deposit model /by Philip L. Verplanck and Bradley S. Van GosenReston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2011.1 online resource (ii, 6 pages)Open-file report ;2011-1256Includes bibliographical references (pages 5-6).Carbonatite and alkaline intrusion-related rare earth element deposits Ore depositsRare earthsAlkalic igneous rocksCarbonatitesOre deposits.Rare earths.Alkalic igneous rocks.Carbonatites.Verplanck Philip L.1393849Van Gosen B. S(Bradley S.),1960-Geological Survey (U.S.),GPOGPOBOOK9910712006703321Carbonatite and alkaline intrusion-related rare earth element deposits3525327UNINA