01519oam 2200409Ia 450 991069647700332120080227143033.0(CKB)5470000002378069(OCoLC)181157681(EXLCZ)99547000000237806920071114d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierField demonstrations of five geophysical methods that could be used to characterize deposits of alluvial aggregate[electronic resource] /by K.J. Ellefsen ... [and others]Reston, Va. :U.S. Dept. of the Interior, U.S. Geological Survey,2007.v, 20 pages digital, PDF fileScientific investigations report ;2007-5226Title from title screen (viewed on Feb. 15, 2008).Includes bibliographical references (pages 18-20).ProspectingGeophysical methodsAlluviumAggregates (Building materials)ProspectingGeophysical methods.Alluvium.Aggregates (Building materials)Ellefsen Karl1380912Geological Survey (U.S.)GISGISGPOBOOK9910696477003321Field demonstrations of five geophysical methods that could be used to characterize deposits of alluvial aggregate3521942UNINA