Determination of the erosion level of a porphyry copper deposit using soil geochemistry

As exploration is time-consuming, costly, and risky, determination of the erosion surface a metalliferous deposit before geophysical surveying drilling might be very helpful. Geochemical haloes can used to determine whether supra-ore or sub-ore thus reduce risk operations. The aim this investigation North ROK porphyry (NRPD) in northwestern British Columbia Canada using linear productivity (LP), which content an element defining halo multiplied by width halo. A total 2045 soil samples from B horizon were analysed ICP-MS for 36 elements, including Cu, Mo, Pb, Zn, Au, As, Ag, Ni, Co, Fe, Mn. data-set was snalysed obtain statistical parameters elements Zn chosen calculate productivity. These four modelled probability plots identify separate subpopulations terms anomalous background, threshold values each subpopulation. results plot modelling thresholds then map distribution GIS indicated that supra-ore. Finally, 3D orebody model distributions constructed borehole data validate results.