TY - RPRT TI - Geochemical soil sampling for deeply-buried mineralized breccia pipes, northwestern Arizona AU - K. J. Wenrich AU - R. M. Aumente-Modreski PY - 1994 DO - 10.1016/0883-2927(94)90065-5 UR - https://pubs.usgs.gov/publication/70017615 ID - 70017615 ER -