نتایج جستجو برای: gold deposit

تعداد نتایج: 99861  

1998
D. I. Groves R. J. Goldfarb M. Gebre-Mariam S. G. Hagemann F. Robert

The so-called ‘mesothermal’ gold deposits are associated with regionally metamorphosed terranes of all ages. Ores were formed during compressional to transpressional deformation processes at convergent plate margins in accretionary and collisional orogens. In both types of orogen, hydrated marine sedimentary and volcanic rocks have been added to continental margins during tens to some 100 milli...

Journal: : 2021

Laboratory studies have been carried out on the processing of gold-bearing concentrate from “Jamgyr” deposit using JIN CHAN reagent. The influence concentration CHAN, duration leaching, temperature solution were studied. As a result research, extraction gold and silver into cyanide-free technology was 97,5% 96%, respectively. obtained solutions by method sorption MA940BG (gold) ion-exchange res...

Journal: :Moscow University Bulletin. Series 4. Geology 2017

Journal: :Zapiski Gornogo instituta 2023

The presented studies are aimed to determine the formation patterns of gold-rare metal mineralization within one most inaccessible Arctic islands Russian Federation, Bolshevik Island Severnaya Zemlya archipela-go. relevance work is determined by high probability discovering a significant in terms reserves deposit, which proved many researchers on example known large deposits be typical feature ...

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