The Geochemical Features of the Waters of Ore Deposits Main Types of Hydrothermal Mineralization Donetsk Folded Structure

2017 ◽  
Vol 18 (1(18)) ◽  
pp. 44-50
Author(s):  
V.G. Suyarko ◽  
◽  
L.V. Ishchenko ◽  
O.O. Serdyukova ◽  
◽  
...  
Keyword(s):  
Ore Deposits ◽  
Hydrothermal Mineralization ◽  
Folded Structure

scholarly journals Preliminary results of sulphur isotope studies on sulfides from selected ore deposits and occurrences in the Karkonosze–Izera Massif (the Sudety Mts., Poland)

Mineralogia ◽  
2012 ◽  
Vol 43 (3-4) ◽  
pp. 213-222 ◽  
Author(s):  
Wojciech Mayer ◽  
Mariusz Orion Jędrysek ◽  
Maciej Górka ◽  
Wojciech Drzewicki ◽  
Ksenia Mochnacka ◽  
...  
Keyword(s):  
Ore Deposits ◽  
Genetic Differences ◽  
Sulphur Isotope ◽  
Preliminary Results ◽  
Hydrothermal Mineralization ◽  
Isotope Data ◽  
Isotope Studies ◽  
Polymetallic Mineralization ◽  
Two Populations

AbstractPreliminary sulphur isotope data are presented for selected ore deposits and occurrences in the Karkonosze-Izera Massif, namely, polymetallic mineralization sites at Budniki, Ciechanowice, Izerskie Garby and Sowia Dolina, and the pyrite deposit at Wieściszowice. The data reveal two populations of δ34S values: from 2.74 to 3.95‰ (pyrrhotites and pyrites in Sowia Dolina, and some pyrites in Wieściszowice) and from 0.79 to 1.8‰ (pyrites in Budniki, Ciechanowice and Izerskie Garby, and some pyrites from Wieściszowice). All of the data are indicative of endogenic sulphur typical of hydrothermal mineralization despite the genetic differences between the sites.

Source of Tinny Granite in Gejiu Tin Ore Deposit in Yunnan Province, China

2013 ◽  
Vol 634-638 ◽  
pp. 3493-3497
Author(s):  
Ying Shu Li ◽  
Yan Cai ◽  
Nan Chen ◽  
Jiao Jiao Chen ◽  
Lun Wang ◽  
...  
Keyword(s):  
Yunnan Province ◽  
Ore Deposits ◽  
Sulphur Isotope ◽  
Ore Deposit ◽  
Hydrothermal Mineralization ◽  
Long Time

It had been believed that the genesis of tinny granite in Gejiu tin ore deposits were hydrothermal mineralization in granite of Yanshanian epoch by most researchers for a long time. However, according to the form, attitude and sulphur isotope in the ore of the oreboby, the authors believe the genesis of the tin ore deposit is relict body of granitic superimposed ore-forming of the Yanshanian epoch after the basic volcano ore-forming of the Indo-Chinese epoch. It’s proved that the form and attitude of the oreboby is basically consistent with the form and attitude of the basalt of the Indo-Chinese epoch. Because sulphur isotope in pyrite of the ore is from 0.21 per thousand to 4.4 per thousand, feature of source of the mantle sulphur isotope is reflected.

scholarly journals Morphological features of ore reserves of the Novo-Uchaly vms deposit (Southern Urals)

2020 ◽  
Vol 63 (2) ◽  
pp. 35-46
Author(s):  
A. V. Spirina ◽  
V. V. Makarov ◽  
I. B. Moiseev ◽  
I. V. Vikentyev
Keyword(s):  
Mineral Composition ◽  
Southern Urals ◽  
Ore Deposits ◽  
Processing Plant ◽  
The Southern Urals ◽  
Ore Deposit ◽  
Ore Body ◽  
Folded Structure ◽  
Gold Silver ◽  
Copper Zinc

Background. The Novo-Uchaly copper-zinc VMS deposit in the Southern Urals (54°10΄54˝N and 59°20΄45˝E) is represented by a steeply dipping lens of Eifelian volcanics (rhyodacites and basalts), which are crumpled into a strongly compressed anticlinal fold. The ore deposit is blind and localised at the convergence of felsic (bottom) and mafic (top) rocks. The deposit is located at depths of 550 m (in the northern part) and 1050 m (in the southern part). The deposit thickness reaches 186 m. The length along the strike and along the dip equals 1250 m and 900 m, respectively. The ore body is intruded by gabbro-diorite and gabbro-diabase dikes. The main ore minerals are pyrite, sphalerite and chalcopyrite, as well as non-metallic minerals, such as quartz, barite and calcite. Unlike most of the Ural VMS deposits, this deposit is the zinc subtype (Zn >> Cu). The ores are predominantly massive and solid sulphide, being banded or brecciated in some parts. The main elements extracted are copper, zinc and sulphur, but gold, silver, cadmium, indium, cobalt, nickel, selenium and tellurium are also obtained.Aim. To clarify the morphology of the ore deposit, to study the ore mineral composition of the upper horizons of its northern part and to determine the underlying reasons for the complex lenticular structure of the sulphide reserve.Materials and methods. In the period 2017—2019, employees of the Institute of Ore Deposits, Petrography, Mineralogy and Biochemistry of the Russian Academy of Sciences (IGEM RAS) together with geologists of the Uchaly Mining and Processing Plant carried out a geological and mineralogical mapping of the deposit in the course of exploration works.Results. The ore contours and mineral composition of the northern part of the ore body were significantly clarified. A series of dikes of variable morphology was identified. A comparison was made of the results with current theories about the structure of the ore deposit. Detailed geological sections were determined and illustrate the complex lenticular structure of the ore deposit complicated by pinch and swell areas. The deposit was formed by processes of dynamic metamorphism.Conclusion. The geological and mineralogical structure of the deposit determined in the study enabled us to propose a schematic reconstruction of the conditions leading to the formation of its folded structure. The findings will help to re-assess the reserves and improve the system of operational exploration and delineation.

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