RELATION BETWEEN PORPHYRY DEPOSITS AND THEIR VEIN SATELLITES

Abstract

Porphyry copper, molybdenum, tin, tin–silver, gold–rare metal and other deposits are commonly accompanied by nonporphyry ore formations that are frequently similar to the entire porphyry group. They are represented by sulfide–quartz (base metal), gold–sulfide–quartz, epithermal gold–silver, antimony, and mercury deposits of vein and stringer–disseminated ores. The detailed study of such satellite deposits revealed that they have mineralogical–geochemical links with the basic porphyry ores. However, the porphyry and nonporphyry deposits seem to be of the same type in some places because of similar physicochemical constraints of vein formation.