Gold-bearing areas of the western slope of Northern Urals and Timan

Kuznetsov, S. K.; Mayorova, T. P.; Sokerina, N. V.; Glukhov, Yu. V.

doi:10.19110/1994-5655-2018-4-81-94

Cited by 3 publications

(6 citation statements)

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“…Relatively pure quartz from a number of main quartz-containing nodes of Ural is the material of our study. For the most part it is granulated quartz taking its origin of metamorphic process realized in conditions of high pressure (disthen-slate formation) [3,14]. We have also taken into observation rare metal pegmatite quartz.…”

Section: Methodsmentioning

confidence: 99%

“…1a). For the quartz of Larinskoye occurrence, for which higher scope of Al, Ge, Na, Li admixtures had been stated [3,14],…”

Section: Xrlmentioning

confidence: 99%

“…World market makes high demands to quartz concentrate quality [1][2][3]. Nanotechnology development and its increase role in industry and scientific research makes problem of pure quartz concentrates obtaining especially actual.…”

Section: Introductionmentioning

confidence: 99%

“…Pure quartz concentrates of high quality are applied in production of solar energy systems, computing, radio and video techniques, lighting fittings, optical fibre, as well as in optics and quartz ceramics obtaining [2]. Main qualitative measures of natural quartz, which is acceptable to get high-pure quartz concentrates of, are admixtures content and light transmission coefficient [3][4]. Currently there are no evaluative characteristics for the raw quartz suitable for obtaining of concentrates of high chemical purity.…”

Section: Introductionmentioning

confidence: 99%

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Structural Impurities and Intrinsic Defects Role in High Quality Raw Quartz Selection by Use of Luminescence Analyses

Boroznovskaya

Korneva

Marfin

2016

KEM

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X-ray induced luminescence (XRL) spectra and thermostimulated luminescence (TSL) curves for natural quartz from a number of main quartz occurrences of Ural have been obtained. They are represented as a number of radiation bands with peaks related to different kinds of luminescence centers, such as admixtures of Al, Ge, Na, Li, or intrinsic defects of quartz’s structure. Influence of preheating and X-raying duration time increase on XRL spectra of quartz has been shown, as well as influence of preheating and irradiation of samples on TSL curves. All these arrangements give an opportunity to estimate degree of purity of natural quartz. Thus, while high-tech industries are developing fast we have to find effective way to select that raw quartz, which is right for high-pure concentrate obtaining, and luminescent study can help with that.

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Section: Methodsmentioning

confidence: 99%

“…1a). For the quartz of Larinskoye occurrence, for which higher scope of Al, Ge, Na, Li admixtures had been stated [3,14],…”

Section: Xrlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structural Impurities and Intrinsic Defects Role in High Quality Raw Quartz Selection by Use of Luminescence Analyses

Boroznovskaya

Korneva

Marfin

2016

KEM

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“…For late generations of quartz, albite and calcite, which reflect the conditions for the formation of Au-Pd mineralization, temperature ranged from 100 to 180 °С and the concentrations of salts, from 2.5 tо 23 wt.% NaCl eq. Surenkov [12] suggests that at the early stage, the Chudnoe deposit was formed [7,[14][15][16].…”

Section: Inferences On the Ptx Parameters Of Au-pd-ree Mineralizationmentioning

confidence: 99%

Native Gold in the Chudnoe Au-Pd-REE Deposit (Subpolar Urals, Russia): Composition, Minerals in Intergrowth and Genesis

et al. 2021

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Composition of native gold and minerals in intergrowth of the Chudnoe Au-Pd-REE deposit (Subpolar Urals, Russia) was studied using optical microscopy, scanning electron microscopy, and electron microprobe analysis. Five varieties of native gold have been identified, based on the set of impurity elements and their quantities, and on intergrown minerals. Native gold in rhyolites from the Ludnaya ore zone is homogeneous and contains only Ag (fineness 720‰, type I). It is in intergrowth with fuchsite or allanite and mertieite-II. In rhyolites from the Slavnaya ore zone, native gold is heterogeneous, has a higher fineness, different sets and contents of elements: Ag, Cu, 840–860‰ (type II); Ag, Cu, Pd, 830–890‰ (III); Ag, Pd, Cu, Hg, 840–870‰ (IV). It occurs in intergrowth with fuchsite, albite, and mertieite-II (type II), or albite, quartz, and atheneite (III), or quartz, albite, K-feldspar, and mertieite-II (IV). High-fineness gold (930–1000‰, type V) with low contents of Ag, Cu, and Pd or their absence occurs in the form as microveins, fringes and microinclusions in native gold II–IV. Tetra-auricupride (AuCu) is presented as isometric inclusions in native gold II and platelets in the decay structures in native gold III and IV. The preliminary data of a fluid inclusions study showed that gold mineralization at the Chudnoe deposit could have been formed by chloride fluids of low and medium salinity at temperatures from 105 to 230 °C and pressures from 5 to 115 MPa. The formation of native gold I is probably related to fuchsitization and allanitization of rhyolites. The formation of native gold II-V is also associated with the same processes, but it is more complicated and occurred later with a significant role of Na-, Si-, and K-metasomatism. The presence of Pd and Cu in the ores and Cr in fuchsite indicates the important role of mafic-ultramafic magmatism.

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Problems of dating the Au-Pd mineralization of the Chudnoye deposit (the Subpolar Urals)

Kozlov,

Korznikov,

Smolensky

et al. 2024

Zapiski Vserossijskogo mineralogičeskogo obŝestva

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The ages values of the minerals that make up the ores of the Chudnoe deposit, established using isotope geochronology methods, do not allow us to correctly estimate the time of formation of Au-Pd mineralization due to the lack of reliable signs of their syngeneticity with gold. Based on linking isotope-geochronological data with the history of the geological development of the Subpolar Urals and the entire complex of endogenous and exogenous processes which determined the features of its geological structure and minerageny, the Early Paleozoic age of mineralization is substantiated. The similar age of the metarhyolites hosting the mineralization suggests not only a spatial, but also a paragenetic relations between ore mineralization and felsic volcanites. When studying the mineral composition and structural and textural features of ores, it is necessary to take into account the imposition of post-ore processes, especially the most powerful metamorphism manifested in the Subpolar Urals, the peak of which occurred in the Upper Paleozoic (~250 Ma).

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Gold-bearing areas of the western slope of Northern Urals and Timan

Cited by 3 publications

References 0 publications

Structural Impurities and Intrinsic Defects Role in High Quality Raw Quartz Selection by Use of Luminescence Analyses

Structural Impurities and Intrinsic Defects Role in High Quality Raw Quartz Selection by Use of Luminescence Analyses

Native Gold in the Chudnoe Au-Pd-REE Deposit (Subpolar Urals, Russia): Composition, Minerals in Intergrowth and Genesis

Problems of dating the Au-Pd mineralization of the Chudnoye deposit (the Subpolar Urals)

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