The metallogenesis of subvolcanic deposits is controlled by subvolcanic act
ivities. The copper polymetallic deposits are genetically related to interm
ediate-acid rocks, and the silver polymetallic deposits are more closely re
lated to acid rocks. The abundance of Cu is relatively high in the intermed
iate-acid rocks and subvolcanic rocks, whereas the abundances of Pb, An and
Ag are high in acid rocks, indicating rich ore-forming elements in origina
l magmas. The study of REEs shows that the magmatic type related to copper
deposits is the syntectic type, and that related to silver polymetallic dep
osits is mainly the re-melting type. The deposits were formed under medium-
low temperatures and low salinity. The metallogenic times were the late sta
ge of the early Yanshanian or the late Yanshanian, dating 78-147 Ma.