A mineralogical study of the Suzdal sediment-hosted gold deposit, Eastern Kazakhstan: Implications for ore genesis

Kovalev, K.R.; Kalinin, Yu. A.; Naumov, E.A.; Pirajno, Franco; Борисенко, А.С.

doi:10.1016/j.oregeorev.2008.11.007

Cited by 27 publications

(16 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is characterized by the concentration of gold in the hydrothermally altered carbonate rocks of the island-arc type volcaniccarbonate-terrigenous formations (deposits Suzdalskoe, Mirazh, etc.) (Greater Altai…, 1998;Kovalev et. al., 2009).…”

Section: Metallogeny Peculiaritiesmentioning

confidence: 99%

Geotectonic Position and Metallogeny of the Greater Altai Geological Structures in the System of the Central-Asian Mobile Belt

D’yachkov¹,

Mizernaya²,

Maiorova³

et al. 2011

New Frontiers in Tectonic Research - General Problems, Sedimentary Basins and Island Arcs

View full text Add to dashboard Cite

Section: Metallogeny Peculiaritiesmentioning

confidence: 99%

Geotectonic Position and Metallogeny of the Greater Altai Geological Structures in the System of the Central-Asian Mobile Belt

D’yachkov¹,

Mizernaya²,

Maiorova³

et al. 2011

New Frontiers in Tectonic Research - General Problems, Sedimentary Basins and Island Arcs

View full text Add to dashboard Cite

“…By this geochemical feature, both ores are of Carlin type, which is one of the most promising gold types in the world gold mining industry (Kovalev et al, 2009;Kuzmina et al, 2013;Radtke, 1985). The petrogeochemical trends of the Baybura-type goldbearing jasperoids and Suzdal'-type ore metasomatites differ considerably (Fig.…”

Section: Discussionmentioning

confidence: 99%

Geology and mineralogy of East Kazakhstan gold-bearing jasperoids (by the example of the Baybura ore field)

Kuzmina

D’yachkov

Владимиров

et al. 2013

Russian Geology and Geophysics

View full text Add to dashboard Cite

Gold-bearing ore occurrences and deposits in jasperoids are objects of a new unconventional type widespread in the West Kalba auriferous belt in eastern Kazakhstan. We present original data on the structural and geologic position and mineralogy of gold-bearing jasperoids of the Baybura ore field, which is a standard object of this type in eastern Kazakhstan. Gold-bearing jasperoids are localized here in shale-carbonate strata of island-arc type (C 1 ) that underwent metasomatism in superintrusive zones of the Kunush complex plagiogranites (C 3 ). Free finely dispersed gold shows typical signs of hypogenous changes. The content of Au varies from 0.1 to 33.5 ppm, and that of Ag, from 0.05 to 2.5 ppm. Based on the data obtained, a geologo-genetic model of the formation of the Baybura gold-bearing jasperoids is proposed. According to the model, the ore deposition is related to the impact of juvenile fluids of plagiogranitic magma on carbonate substrate. The main factors determining the evolution of gold-bearing metasomatites are their localization in zones of high tectonic activity and a drastic change in the acidity-alkalinity regime of solutions in the carbonate environment. Native gold grains are extremely fine and thin and contain a permanent impurity of Hg (0.2-0.7 wt.%). In mineralogical and geochemical features the gold mineralization of the Baybura ore field is similar to that of the Suzdal' deposit and can be assigned to the Carlin type.

show abstract

“…Можно отметить, что после-довательность отложения минералов во времени происходит в ходе развития гидротермального про-цесса и изменения химического состава известкови-стых пород по мере продвижения через них модель-ного раствора. (Kovalev, Kalinin, Naumov, Pirajno, & Borisenko, 2009) При воздействии близ нейтрального хлоридно-натриево-кальциевого раствора V на породу (до 10 г) происходит отложение пирита с понижением значе-ния pH раствора от 7.3 до 4.4, что приводит к оса-ждению α -HgS при разложении сульфидной формы ртути, (HgS 2 2-) по уравнению (1). Важно отметить, что в процессе взаимодействия хлоридно-натриево-кальциевого раствора с вмещающей породой проис-ходит экстракция из нее золота (увеличение концен-трации раствора по Au(I)), а затем имеет место оса-ждение самородного золота при разложении ком-плекса Au(HS) 2 -(уравнение (2), находящегося в рас-творе, в гидротермально измененной породе.…”

Section: результаты термодинамического моделирования процесса взаимо-unclassified

Physical and chemical conditions for the formation of mercuric gold within Au-Hg deposits (thermodynamic modeling)

Gushchina¹,

Naumov²

2017

Min. miner. depos,

View full text Add to dashboard Cite

A mineralogical study of the Suzdal sediment-hosted gold deposit, Eastern Kazakhstan: Implications for ore genesis

Cited by 27 publications

References 30 publications

Geotectonic Position and Metallogeny of the Greater Altai Geological Structures in the System of the Central-Asian Mobile Belt

Geotectonic Position and Metallogeny of the Greater Altai Geological Structures in the System of the Central-Asian Mobile Belt

Geology and mineralogy of East Kazakhstan gold-bearing jasperoids (by the example of the Baybura ore field)

Physical and chemical conditions for the formation of mercuric gold within Au-Hg deposits (thermodynamic modeling)

Contact Info

Product

Resources

About