Supergene Geochemistry of Gold and Oxidation Zone of the Sain Us Gold Deposit in the Inner Mongolian Arid Region-中国期刊网

摘要 TheSainUsgolddepositisatypicalauriferoussulphidequartzveindepositintheInnerMongolianaridsteppeclimaticregion.Theoxidationzonehasbeencontrolledbythearidcli-matesincethebeginningoftheHolocene.Goldsupergeneevolutionischaracterizedbyenlarge-mentofgoldgrains,complicationofthegoldform,raisingofthegoldgradeandincreaseofthegoldfineness;besides,goldandsilverhavetwoenrichmentpeaksatthesamedepth,whichisinsharpcontrasttotheunimodalenrichmentofgoldandsilverandtheoccurrenceofgoldaboveandsilverbelowinahumidclimaticregion.Sunpumpingisthemaincauseforthebimodalenrichmentofgoldandsilver.Illite2M1isoneofthemaincausesfortheupperenrichmentpeakofgoldandsilver.

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Supergene Geochemistry of Gold and Oxidation Zone of the Sain Us Gold Deposit in the Inner Mongolian Arid Region

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Supergene Geochemistry of Gold and Oxidation Zone of the Sain Us Gold Deposit in the Inner Mongolian Arid Region

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