metallogenetic

The Hongniu Cu deposit in "Sanjiang Metallogenetic Zone" is occurred in the skarnization alteration zone in the margin of marble and the hornfels body.

“三江成矿带”内的红牛铜矿,赋存于大理岩边部矽卡岩化变带及角岩体中。

In the northwest of China, auriferous altered cataclasite, adular-sericite quartz vein and quartz reef types are present, and metallogenetic epoch is mainly Hercynian period.

西北部地区主有变碎岩型、-绢云母英脉型和英脉型等，成矿时代主为海西期；