1999
DOI: 10.1007/bf02977890
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Genesis of Carlin-type gold deposits in southwestern Guizhou Province, China

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Cited by 5 publications
(6 citation statements)
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“…In the deposition process, AuNPs and AgNPs could be initially formed through photoreduction by DOM, and further solar irradiation could induce the precipitation of these nanoparticles . The precipitation and adsorption of AuNPs and AgNPs on minerals and rocks (such as sulfide minerals and carbonaceous rocks) could consequently result in the supergene enrichment of Au and Ag …”
Section: Discussionmentioning
confidence: 99%
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“…In the deposition process, AuNPs and AgNPs could be initially formed through photoreduction by DOM, and further solar irradiation could induce the precipitation of these nanoparticles . The precipitation and adsorption of AuNPs and AgNPs on minerals and rocks (such as sulfide minerals and carbonaceous rocks) could consequently result in the supergene enrichment of Au and Ag …”
Section: Discussionmentioning
confidence: 99%
“…51 The precipitation and adsorption of AuNPs and AgNPs on minerals and rocks (such as sulfide minerals and carbonaceous rocks) could consequently result in the supergene enrichment of Au and Ag. 58 Considering the toxicity and possible bioaccumulation of nanoparticles in marine and terrestrial food chains, 9À11 …”
Section: àmentioning
confidence: 99%
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“…Considering the relatively high stability of DOM-coated AuNPs, 20,21 they can be transported through water in long distances. The further precipitation induced by sunlight or thermal irradiation, oxidation of organic matter or elevated ionic strength, 28 and adsorption of AuNPs on sulfide minerals and carbonaceous rocks, 57 could consequently result in the enrichment of Au and finally formation of the commonly observed Au nuggets. Additionally, the oxidative dissolution of primary hydrothermal Au/Ag alloy ore, and further selective reduction and reprecipitation of Au, is helpful to improve the purity of supergene Au.…”
Section: +mentioning
confidence: 99%
“…The removal of gold colloids may due either to direct uptake of the gold colloids or to dissolution and subsequent adsorption. The adsorption of sulfide minerals are apparent, especially pyrite (Zhu et al, 1998b). Gold colloids are usually negatively charged (Van Olphen, 1977;Enzweiller and Joekes, 1991) and are attracted to positively charged 209 surfaces.…”
mentioning
confidence: 99%