TY - RPRT TI - Field Demonstrations of Five Geophysical Methods that Could Be Used to Characterize Deposits of Alluvial Aggregate AU - K.J. Ellefsen AU - B.L. Burton AU - J.E. Lucius AU - S.S. Haines AU - D.V. Fitterman AU - J.A. Witty AU - David R. Carlson AU - B. Milburn AU - W. H. Langer PY - 2007 DO - 10.3133/sir20075226 UR - https://pubs.usgs.gov/publication/sir20075226 ID - sir20075226 ER -