 This igneous event was the source of deposition of gold, silver and other base metals.Copper and molybdenum sulfide minerals are dispersed in the intruded stock and in the adjoining carbonate sedimentary skarns.The main stratigraphic rocks in Bingham Canyon are Upper Pennsylvanian sandstones, quartzites, and limestones known as the Bingham Mine Formation in the Oquirrh Group.