(vi) Conglomerate gold deposits

This kind of gold mine occupies an important position in the world's gold reserves, represented by the Rand gold mine in South Africa. Such deposits include Ya Cobbinah in Brazil, Takuwa in Ghana, Blind River-Eliaott in Canada, Naragin in Australia, Bababatan in India, Fenos Candea in Wyoming and Northern Europe. This kind of deposit is rarely found in China, and mainly occurs in Jurassic-Cretaceous and Tertiary glutenite. The basement of the deposit is mostly pre-Sinian metamorphic rock series, which occurs at the edge of Mesozoic and Cenozoic intracontinental fault basins, and the ore bodies are layered and lenticular. Natural gold mainly occurs in the lower and bottom of gravel layer, and is enriched in the bottom conglomerate and its cement. Typical ore deposits are Musuo Xiaojinshan (gold-bearing conglomerate at the bottom of Upper Jurassic), Fengqinggou in Inner Mongolia (lower Cretaceous glutenite), Huangsongdianzi in Hunchun, Jilin (Neogene gold-bearing glutenite), Wangjing in Sichuan, Yuanling-Mayang Basin gold mine in Hunan, Zuoyu-Deting gold mine in Chongxian, Henan, Huangdanling in Guangxi and Xiwan gold mine in Gansu.