A Giant Mesoarchean Crustal Gold-Enrichment EpisodePossible Causes and Consequences for Exploration

2014 ◽  
Author(s):  
Hartwig E. Frimmel
Keyword(s):  
Gold Enrichment

Gold enrichment in hydrothermal sulfides from the Okinawa Trough: An in situ LA-ICP-MS study

2020 ◽  
Vol 116 ◽  
pp. 103255 ◽  
Author(s):  
Yaoyao Zhang ◽  
Fengyou Chu ◽  
Zhenggang Li ◽  
Yanhui Dong ◽  
Hao Wang ◽  
...  
Keyword(s):  
Okinawa Trough ◽  
The Okinawa Trough ◽  
Icp Ms ◽  
Gold Enrichment ◽  
Hydrothermal Sulfides

Crust-mantle structures and gold enrichment mechanism of mantle fluid system

2003 ◽  
Vol 22 (3) ◽  
pp. 263-270 ◽  
Author(s):  
Deng Jun ◽  
Sun Zhongshi ◽  
Wang Qingfei ◽  
Wei Yangguang
Keyword(s):  
Fluid System ◽  
Mantle Fluid ◽  
Gold Enrichment

scholarly journals Study on gold enrichment characteristics in Zambia: Based on 1∶1000000 geochemical mapping

China Geology ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 1-11
Author(s):  
Jun-ping Ren ◽  
◽  
Jie Wang ◽  
A-lei Gu ◽  
Li-bo Zuo ◽  
...  
Keyword(s):  
Geochemical Mapping ◽  
Gold Enrichment ◽  
Enrichment Characteristics

Gold enrichment in active geothermal systems by accumulating colloidal suspensions

2016 ◽  
Vol 9 (4) ◽  
pp. 299-302 ◽  
Author(s):  
Mark Hannington ◽  
Vigdis Harðardóttir ◽  
Dieter Garbe-Schönberg ◽  
Kevin L. Brown
Keyword(s):  
Colloidal Suspensions ◽  
Geothermal Systems ◽  
Gold Enrichment

Carbon in Archean rocks of the Abitibi belt (Ontario–Quebec) and its relation to gold distribution

1985 ◽  
Vol 22 (12) ◽  
pp. 1945-1951 ◽  
Author(s):  
Janet S. Springer
Keyword(s):  
Hydrothermal Fluids ◽  
Carbonate Content ◽  
Gold Leaching ◽  
Independent Evidence ◽  
Quartz Veins ◽  
Mass Balancing ◽  
Gold Enrichment ◽  
Carbonaceous Rocks ◽  
Hydrothermal Event

In the Abitibi belt of Ontario and Quebec, sedimentary black argillites with carbon contents of up to 5% C contain up to 0.5 ppm gold. Sheared black argillites, now graphitic schists, reflect the values of the sedimentary precursors, although their appearance is very different. Gold values of 15 ppm and more are found in graphitic schists only where alteration, shown by quartz veins and increased carbonate content, gives independent evidence of a later hydrothermal event. Gold-rich graphitic schists are characterized by veining; raised gold values closely follow vein margins. As mass balancing shows gold leaching and redeposition to be unlikely, gold enrichment is interpreted to reflect introduction of gold and its preferential deposition in carbonaceous rocks by reduction at vein margins. Natural carbons in these rocks may have been surface activated by both shearing and hydrothermal fluids.

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