TY - RPRT TI - Arsenic as an indicator element for mineralized volcanic pipes in the Red Mountains area, western San Juan Mountains, Colorado AU - Wilbur S. Burbank AU - Robert G. Luedke AU - Frederick Norville Ward PY - 1972 DO - 10.3133/b1364 UR - https://pubs.usgs.gov/publication/b1364 ID - b1364 ER -