IDEAL MODELS OF SUPERIMPOSED PRIMARY HALOS IN HYDROTHERMAL GOLD DEPOSITS

Mineralization in structurally controlled hydrothenmal gold deposits i s often the product of multistage events, and the associated primary h alos outlined by geochemical prospecting usually show characteristics of superimposed multistage mineralization. Geochemists involved in the study of vertical geochemical zoning of gold deposits have long exper ienced difficulty in interpreting these superimposed primary halos. Th erefore, it may be very useful to be able to decompose multistage halo s in gold deposits into their various components as an aid in the sear ch for blind ores and in establishing the erosional level of orebodies .