Stereo Satellite Surveying: Volumetrics at Penasquito Gold Mine, Mexico
Satellite elevation surveying measurements of the volume of rock and overburden mined at Penasquito Gold Mine in one month
PhotoSat measured the volume changes over the entire site of the Penasquito Gold Mine over a period of one month. Stereo WorldView-2 satellite photos were taken of the Penasquito mine site on January 31 and again on February 27. Using its proprietary geophysical stereo satellite elevation processing system, PhotoSat produced surveyed elevation surfaces of the mine site for the two dates. The volume changes in the pit, the waste dumps, the leach pad and the ore stockpiles were then calculated from the differences between the February 27 and January 31 elevation surfaces.
The mine site volume changes are shown in Figure 2 and Figure 3 below. Volume additions in the leach pad are shown in Figure 4.