TY - RPRT TI - CHARACTERIZATION OF SECONDARY ALTERATION IN THE COLUMBIA RIVER BASALT BY BACKSCATTERED ELECTRON IMAGING AND ENERGY-DISPERSIVE X-RAY SPECTROSCOPY. AU - P.P. Hearn AU - W.C. Steinkampf AU - Z. A. Brown PY - 1984 UR - https://pubs.usgs.gov/publication/70013848 ID - 70013848 ER -