scholarly journals Analysis of Tectonic Ore-Controlling Factors Using of Geophysical Data on the Example of the Elkon Ore District (Aldan Shield, North-Asian Craton)

2020 ◽  
Vol 609 ◽  
pp. 012026
Author(s):  
Evgeny Loskutov
Keyword(s):  
Aldan Shield ◽  
Controlling Factors ◽  
Geophysical Data ◽  
North Asian Craton ◽  
Ore District

Sulfur Isotopic Composition of Sulfides of the Au-Te Ore Mineralization in Podgolechnoe and Samolazovskoe Gold-Ore Deposits (Aldan Shield, Russia)

2018 ◽  
Vol 769 ◽  
pp. 227-232
Author(s):  
Nataliya Rusinova ◽  
Vasilii Ivanovich Leontev
Keyword(s):  
Isotopic Composition ◽  
Significant Contribution ◽  
Isotopic Ratio ◽  
Aldan Shield ◽  
Ore Deposits ◽  
Sulfur Isotopic Composition ◽  
Magmatic Source ◽  
Ore Mineralization ◽  
Sulfur Isotopic Ratio ◽  
Ore District

This work presents the results of an analysis of the sulfur isotopic composition of pyrites from different metasomatic rocks of the Samolazovskoe and Podgolechnoe (Central Aldan ore district) deposits. The sulfur isotopic ratio of pyrite from ore-bearing metasomatic rocks of the Podgolechnoe deposit is characterized by δ34S values varying in a range from –1.8 to –5.5 ‰; that of pyrite from the Samolazovskoe deposit is in a range from –6.9 to –12.3‰. This is in agreement with the suggestion that a magmatic source made a significant contribution to the formation of the ore-forming fluid.

Geodynamics of late Mesozoic PGE, Au, and U mineralization in the Aldan shield, North Asian Craton

2015 ◽  
Vol 68 ◽  
pp. 30-42 ◽  
Author(s):  
Vadim G. Khomich ◽  
Natalia G. Boriskina ◽  
M. Santosh
Keyword(s):  
Aldan Shield ◽  
North Asian Craton ◽  
Late Mesozoic

Zircon U-Pb Geochronology Recorded Late Cretaceous Fluid Activation in the Central Aldan Gold Ore District, Aldan Shield, Russia: First Data

2020 ◽  
Vol 31 (3) ◽  
pp. 481-491
Author(s):  
Vasilii I. Leontev ◽  
Sergey G. Skublov ◽  
Nadezhda V. Shatova ◽  
Alexey V. Berezin
Keyword(s):  
Late Cretaceous ◽  
Aldan Shield ◽  
Gold Ore ◽  
Ore District

scholarly journals Geochemical features of the compositions of the Mesozoic igneous rocks of the Khokhoi ore field (Upper Amga gold-mining district, Aldan shield, North Asian Craton)

2019 ◽  
Vol 362 ◽  
pp. 012080
Author(s):  
Alexey Ivanov ◽  
Larisa Kondratieva ◽  
Evgeny Loskutov ◽  
Alexander Kravchenko ◽  
Anatolii Zhuravlev ◽  
...  
Keyword(s):  
Gold Mining ◽  
Aldan Shield ◽  
Igneous Rocks ◽  
Mining District ◽  
North Asian Craton

scholarly journals The genesis of the Mesozoic alkaline intrusions of the Khokhoi ore field (Upper Amga gold-mining district, Aldan Shield, North Asian Craton)

2019 ◽  
Vol 362 ◽  
pp. 012012
Author(s):  
Alexey Ivanov ◽  
Alexander Kravchenko ◽  
Evgeny Loskutov ◽  
Larisa Kondratieva ◽  
Anatolii Zhuravlev ◽  
...  
Keyword(s):  
Gold Mining ◽  
Aldan Shield ◽  
Mining District ◽  
North Asian Craton

scholarly journals Constraints of nonseismic geophysical data on the deep geological structure of the Benxi iron-ore district, Liaoning, China

2020 ◽  
Vol 12 (1) ◽  
pp. 887-903
Author(s):  
Chun-Hui Xu ◽  
Lin-Fu Xue ◽  
Chong Peng
Keyword(s):  
Iron Ore ◽  
Sedimentary Cover ◽  
Geological Structure ◽  
Ore Deposits ◽  
Geophysical Data ◽  
Liaoning Province ◽  
Magnetotelluric Data ◽  
Iron Ore Deposits ◽  
Iron Bearing ◽  
Ore District

AbstractThe Benxi area in Liaoning Province is one of the most important iron-ore districts in China. This study uses nonseismic geophysical data (in the form of gravity–magnetic–magnetotelluric data) and based on the section modeling method to model the deep, three-dimensional geological structure of the Benxi area. Based on the modeling results and deep geological structure characteristics, the Benxi area can be divided into three first-order deep geological tectonic units. A close relationship is between tectonic unit and iron-ore concentrations. First, high-quality iron-ore deposits occur within the tectonic boundary and sedimentary boundary zone of the Jiao–Liao–Ji Belt, reflects the protective effect of sedimentary cover on the iron-bearing formation. Second, enriched iron-ore deposits are mainly developed in Mesozoic granitic intrusion zone, reflects the hydrothermal leaching of silicon in host iron-bearing formations during magma intrusion. Thus, the findings of this study have important implications for future prospecting in the Benxi iron-ore district.

Ore Mineralization of the Epithermal Samolazovskoe Gold-Ore Deposit, Aldan Shield (Russia)

2018 ◽  
Vol 769 ◽  
pp. 213-219 ◽  
Author(s):  
Vasilii Ivanovich Leontev ◽  
Konstantin Chernigovtsev
Keyword(s):  
Aldan Shield ◽  
Crystalline Basement ◽  
Linear Type ◽  
Ore Deposit ◽  
Gold Ore ◽  
Ore Minerals ◽  
Ore Mineralization ◽  
Gold Ore Deposit ◽  
Full Volume ◽  
Ore District

The Samolazovskoe gold-ore deposit is located in the Central Aldan ore district (Russia) within the Yukhta multiphase volcano-plutonic massif, consisted of rocks of the monzonite-syenite formation (J3–K1). Four hydrothermal-metasomatic mineral parageneses are distinguished in the deposit: skarn, developed at the contact of syenites and rocks of the carbonate cover (V–Є); gumbeite, superimposed on the rocks of the intrusive massif; feldspatholite, developed in granite gneisses of the crystalline basement (PR) at their contact with the intrusive massif; ore-bearing fluorite–roscoelite–carbonate–quartz, superimposed on all above-mentioned types of mineralization. The main types of mineralization in the Samolazovskoe deposit are the following: (1) vein-disseminated linear type (now recovered in full volume); (2) vein-disseminated stockwork type; and (3) breccia-like type. Vein-filling minerals of the ores are quartz, fluorite, roscoelite, and carbonate. The main ore minerals are pyrite and marcasite; the secondary ones are bournonite, fahlore, sphalerite, galena, and chalcopyrite. Coloradoite and calaverite are less common; native gold occurs very rarely. Pyrite and marcasite are characterized by the following impurities (wt%): Sb (0.64–1.90), As (0.94–5.25), Te (1.02–3.82), and V ( 0.21–0.31).

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