The Features of Gold Ore Deposit and Analysis of Ore-Searching Prospect in Huashi Mountain

Huashishan(Huashi Mountain) tectonic(hydrothermal) altered-rock gold ore deposit is a medium-sized scale deposit that located within the faulted-fracture zone in the Shizui formation of Hulu River group of Sinian-Ordovician age.The ore mainly includes two components: auriferous quarts and tectonic altered-rock.Limonite and pyrite are the major gold-carrier in the mineral.The features of wall-rock alteration are silication,limonitization,pyritization and sericitize.The basic conditions of ore deposit-forming is controlled by the tri-unity which are marine sedimentary rock and inter mediate-acid volcanic rock,brittle-ducltile faulted structure as well as intermediate-acid magmatic intrusion.It is possible to form massive gold ore while the ore-forming condition is better in the region.The faulted-altered-extension zone is a more favorable place for searching gold-ore deposit along the east-west trending.