scholarly journals Modern Minerals Formation Genesis in Kavalerovsky Tin–Ore District Technogenic System (Primorsky Krai)

Minerals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 91
Author(s):  
Valentina Zvereva ◽  
Anastasiya Lysenko ◽  
Konstantin Frolov
Keyword(s):  
Wide Temperature Range ◽  
Tin Sulfide ◽  
Industrial System ◽  
Primorsky Krai ◽  
Sulfide Deposits ◽  
X Ray ◽  
Formation Conditions ◽  
Host Rocks ◽  
Ore District ◽  
Technogenic Waters

Parameters and conditions of crystallization for the majority of hypergenic and technogenic minerals have not yet been studied, as their determination is often difficult due to their imperfect crystalline structure (X-ray amorphous) and formation in polymineral compounds. The article discusses the formation conditions of 20 hypergenic and technogenic minerals from technogenic waters in the mining industrial system of the Kavalerovsky district tin–sulfide deposits (Primorsky krai) in Russia. For various ratios of hypogenic minerals–host rocks in ore and in tailings in a wide temperature range (from −25 to 45 °C), the Eh-pH parameters and the minerals paragenesis were established. All hypergenic and technogenic minerals formed during modeling were found and diagnosed in the Kavalerovsky tin–ore district mining industrial technogenic system.

scholarly journals Geological structure of the Karabash ore district (Southern Urals)

LITOSFERA ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 682-689
Author(s):  
V. N. Anfilogov ◽  
L. Y. Kabanova ◽  
V. M. Ryzhkov ◽  
M. A. Korekina
Keyword(s):  
Cross Section ◽  
Southern Urals ◽  
Geological Structure ◽  
Ore Bodies ◽  
Geological Cross Section ◽  
Formation Conditions ◽  
Eastern Limb ◽  
Copper Pyrite ◽  
Host Rocks ◽  
Ore District

Research subject. The Karabash ore district is a unique structural zone in the Ural folded system, formed at the joint of the Magnitogorsk and Tagil depressions. The uniqueness of this zone is associated with its specific formation conditions: a Paleozoic copper pyrite belt with a width of about 8 km was squeezed between two blocks of ancient metamorphic rocks. This zone features a classic copper-pyrite deposit represented by steeply dipping ore bodies, which were initially characterized by a gentle dip. Elucidation of the primary geological structure and tectonic evolution of the district presents a relevant research task.Materials and methods. A geological cross section of the Karabash district was studied. Particular attention was paid to interactions between Paleozoic volcanic and sedimentary rocks and ultramafic bodies, whose age was determined by the method of zircon U–Pb dating.Results. The age of ultramafic bodies in the Karabash district was found to be 430–440 million years. Serpentinite blend (mélange) zones having a width of 60m were discovered in the sites of contact between ultramafites and host rocks. Regularities in the location of these zones in the eastern and western parts of the district make them suitable horizon markers for constructing a geological cross section of the Karabash ore district.Conclusions. It is established that the Karabash district is represented by a monocline synclinal fold formed by contraction of primary horizontal layers in the direction from east to west. The formation of the Zolotaya Gora golden deposit located in the eastern limb of the synclinal fold was associated with tectonic contraction processes.

Pb-Sb zrudnění z Antimonitové žíly, důl Rudolf, Bohutín (Česká republika)

2021 ◽  
Vol 29 (2) ◽  
pp. 275-280
Author(s):  
Pavel Škácha ◽  
Jiří Sejkora
Keyword(s):  
Czech Republic ◽  
Chemical Composition ◽  
Empirical Formula ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Unit Cell Parameters ◽  
X Ray ◽  
Cell Parameters ◽  
Ore District ◽  
Archive Material

The Pb-Sb mineralization with dominant stibnite and plagionite and associated semseyite and zinkenite was found in an archive material collected at the Antimonitová vein, Bohutín, Březové Hory ore district (Czech Republic). Plagionite forms subhedral aggregates up to 1 mm in size. The unit-cell parameters of plagionite for monoclinic space group C2/c refined from the X-ray powder data are: a 13.4890(17), b 11.8670(14), c 19.997(2) Å, β 107.199(8)° and V 3057.9(6) Å3. Its chemical composition (average of 26 analyses, based on 30 apfu) corresponds to the empirical formula Pb5.02Sb8.15S16.82. Associated zinkenite is forming subhedral crystals up to 1 mm in size. Its empirical formula can be expressed as (Cu0.25Ag0.02Fe0.01)Σ0.28Pb9.22Sb22.19S41.31 (average of 26 analyses, based on 73 apfu). Semseyite aggregates have the empirical formula (Pb8.72Fe0.14)8.86Sb8.42S20.73 (average of 11 analyses, based on 38 apfu).

scholarly journals Facile Synthesis of SnS Nanostructures With Different Morphologies for Supercapcitor and Dye-Sensitized Solar Cell Applications

2021 ◽  
Author(s):  
Mohd Arif Dar ◽  
D. Govindarajaran ◽  
Gulam Nabi Dar
Keyword(s):  
Morphological Changes ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Orthorhombic Phase ◽  
Sem Analysis ◽  
Tin Sulfide ◽  
Counter Electrodes ◽  
X Ray ◽  
Dye Sensitized ◽  
Direct Energy

Abstract In this paper, Tin Sulfide (SnS) nanoparticles is synthesized with three different solvents through hydrothermal method and characterized by using X-Ray diffraction, scanning electron microscopy, UV–Drs spectroscopy, Fourier transform infrared spectroscopy, Energy Dispersive X- ray spectrum, Supercapcitor and photovoltaic performance. XRD patterns indicate that the prepared SnS nanoparticles exist in the orthorhombic phase. The SEM analysis clearly picturize the morphological changes in the SnS nanoparticles synthesized through different solvents. The UV-Drs spectrum gives direct energy band gap which lies between 1.0 eV to 2.0 eV. The FT-IR spectrum explains various functional groups present in the SnS nanoparticles. The prepared SnS counter electrodes (CEs) showed good electrocatalytic activity in the redox reaction of the I−/I3−. The efficiency of SnS-e, SnS-a and SnS-m counter electrodes are 9.99 %, 9.90 % and 9.86 % in Dye-sensitized solar cells (DSSC) than that of platinum counter electrode which is 9.80 %. The specific capacitance of 284 F/g is obtained for SnS-e electrode at a current density of 5 A/g and an energy density of 216 Wh/kg corresponding to power density value of 1.6 KWh/kg which proves SnS-e electrode possesses better capacitive performance.

HIGH RESOLUTION MINERALOGICAL CHARACTERIZATION OF SEDIMENTS - LAKE BOLĂTĂU-FEREDEU (ROMANIA)

2021 ◽  
Vol 16 (1) ◽  
pp. 199-210
Author(s):  
Máté Karlik ◽  
◽  
Ildikó GYOLLAI ◽  
Anna VANCSIK ◽  
Krisztián FINTOR ◽  
...  
Keyword(s):  
High Resolution ◽  
Chemical Weathering ◽  
Soil Formation ◽  
Mineralogical Characterization ◽  
X Ray ◽  
Geochemical Conditions ◽  
Formation Conditions ◽  
Physical And Chemical ◽  
Microbial Mediation

The catchment (bedrock and soil) and sediments of lake Bolătău, Romania were studied by high resolution multi-methodological investigations to characterize paleoenvironmental and formation conditions. Particle size analyses, optical and cathodoluminescence microscopy, FTIR-ATR and Raman spectroscopy, X-ray powder diffraction, and XRF were applied for microtextural, chemical, micro-mineralogical and embedded organic material characterization and distribution of the sediments, especially concerning geochemical conditions, like pH and redox potential change. Our results support physical and chemical weathering in the process of soil formation with appearance of the new minerals appear (10Å sized phyllosilicates and clay minerals). Comparison of these studies offer possible differentiation of syn- and diagenetic mineralization, the clarification of debris contribution, microbial mediation and complex mineralization via decomposition of cell and extracellular polymeric substance. Based on the analyses on the abrasives, a suboxic environment prevailed in the depositional area and considerable microbial contribution is proposed via accumulation of lake sediments.

The Technique of Studying X-Ray Scattering over Wide Temperature Range in an Electric Field

2018 ◽  
Vol 60 (5) ◽  
pp. 963-966 ◽  
Author(s):  
S. A. Udovenko ◽  
D. Yu. Chernyshov ◽  
D. A. Andronikova ◽  
A. V. Filimonov ◽  
S. B. Vakhrushev
Keyword(s):  
Electric Field ◽  
Wide Temperature Range ◽  
X Ray ◽  
Temperature Range ◽  
X Ray Scattering ◽  
Ray Scattering

Effect of Temperature on Structural and Optical Properties of Chemically Deposited Tin Sulfide Thin Films Suitable for Photovoltaic Structures

2013 ◽  
Vol 665 ◽  
pp. 93-100 ◽  
Author(s):  
T.H. Patel
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Xrd Analysis ◽  
Buffer Layers ◽  
Effect Of Temperature ◽  
Tin Sulfide ◽  
X Ray ◽  
Glass Substrates ◽  
Average Grain Size ◽  
Deposited Films

SnS (tin sulphide) is of interest for use as an absorber layer and the wider energy band gap phases e.g. SnS2, Sn2S3and Sn/S/O alloys of interest as Cd-free buffer layers for use in thin film solar cells. Thin films of tin sulphide have been deposited using CBD at three different bath temperatures (27, 35 and 45 °C) onto microscope glass substrates. The X ray diffraction (XRD) analysis of the deposited films reveled that all films has orthorhombic SnS phase as dominant one with preferred orientations along (111) direction. The temperature influence on the crystalline nature and the presence of other phases of SnS has been observed. The average grain size in the films determined from Scherers formula as well as from Williamson-Hall-plot method agrees well with each other. Energy dispersive X-ray (EDAX) analysis used to determine the film composition suggested that films are almost stoichiometric. The scanning electron microscopy (SEM) reveals that deposited films are pinhole free and consists of uniformly distributed spherical grains. The optical analysis in the 200-1200 nm range suggests that direct allowed transitions are dominant in the absorption process in the films with variation in the band gap (~1.79 to ~2.05 eV) due to variation in deposition temperature.

Sign in / Sign up

Export Citation Format

Share Document