02158oam 2200529 450 991070401680332120151104135502.0(CKB)5470000002437490(OCoLC)886560008(EXLCZ)99547000000243749020140812d1985 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierSignificance of tourmaline-rich rocks in the Grenville Complex of St. Lawrence County, New York a study of tourmaline compositions and their possible use as indices of mineralization /by C. Ervin Brown and Robert A. Ayuso[Reston, Va.] :Department of the Interior, U.S. Geological Survey,1985.[Washington, D.C.] :United States Government Printing Office.1 online resource (iv, 33 pages) illustrations, mapsU.S. Geological Survey bulletin ;1626-CContributions to the geology of mineral depositsTitle from title screen (viewed Aug. 11, 2014).At head of title: Chapter C.Includes bibliographical references (pages 31-33).Significance of tourmaline-rich rocks in the Grenville Complex of St. Lawrence County, New York TourmalineNew York (State)Saint Lawrence CountyGeochemical prospectingNew York (State)Saint Lawrence CountyGeochemical prospectingfastTourmalinefastNew York (State)Saint Lawrence CountyfastTourmalineGeochemical prospectingGeochemical prospecting.Tourmaline.Brown C. Ervin(Clarence Ervin),1925-1393907Ayuso Robert A.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910704016803321Significance of tourmaline-rich rocks in the Grenville Complex of St. Lawrence County, New York3545855UNINA