TY - RPRT TI - Concealed basalt-matrix diatremes with Cu-Au-Ag-(Mo)-mineralized xenoliths, Santa Cruz Porphyry Cu-(Mo) System, Pinal County, Arizona AU - Peter G. Vikre AU - Frederick Graybeal AU - Fleetwood R. Koutz PY - 2014 DO - 10.2113/econgeo.109.5.1271 UR - https://pubs.usgs.gov/publication/70194330 ID - 70194330 ER -