Academic literature on the topic 'Sulfides. Mineralogy Ores'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Sulfides. Mineralogy Ores.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Sulfides. Mineralogy Ores"

1

Reichel, Susan, Mirko Martin, Christopher G. Bryan, Cristina Vila, António Fiúza, and Wolfgang Reimer. "Innovative Biohydrometallurgical Approaches in the EU Project FAME." Solid State Phenomena 262 (August 2017): 307–10. http://dx.doi.org/10.4028/www.scientific.net/ssp.262.307.

Full text
Abstract:
The FAME (Flexible and Mobile Economic Processing Technologies) project targets the development of flexible and economic processing technologies for small and low-grade European ore deposits with complex mineralogy, targeting greisen, skarn and pegmatite ores. Amongst the valuable elements to be recovered are W, Sn, Li and minor constituents like In, Ge, Ga, Nb or Ta. To improve the processing of by-product sulfides to recover critical elements like In or Ga and to develop innovative processing strategies for raw materials, biohydrometallurgical technologies are investigated. There are different approaches in FAME for the biohydrometallurgical recovery of valuable metals from low grade ores: 1) the extraction of Li from zinnwaldite and lepidolite, 2) the heap leaching of low grade sulfide ore unsuitable for conventional processing to recover Zn and In, and 3) the bioleaching of sulfide concentrates in a two-stage tank process for recovery of Zn and Cu. So far the most promising results were achieved for heap-leaching of low-grade Zn-In ores achieving 7.4 ppm In in the leaching solution and for Li extraction (28%) from zinnwaldite.
APA, Harvard, Vancouver, ISO, and other styles
2

Tzamos, Evangelos, Platon N. Gamaletsos, Giovanni Grieco, Micol Bussolesi, Anthimos Xenidis, Anastasios Zouboulis, Dimitrios Dimitriadis, Yiannis Pontikes, and Athanasios Godelitsas. "New Insights into the Mineralogy and Geochemistry of Sb Ores from Greece." Minerals 10, no. 3 (March 6, 2020): 236. http://dx.doi.org/10.3390/min10030236.

Full text
Abstract:
Antimony is a common metalloid occurring in the form of Sb-sulfides and sulfosalts, in various base and noble metal deposits. It is also present in corresponding metallurgical products (concentrates) and, although antimony has been considered a penalty element in the past, recently it has gained interest due to its classification as a critical raw material (CRM) by the European Union (EU). In the frame of the present paper, representative ore samples from the main Sb-bearing deposits of Greece (Kilkis prefecture, Chalkidiki prefecture (Kassandra Mines), and Chios Isl.) have been investigated. According to optical microscopy and electron probe microanalysis (EPMA) data, the Greek ores contain stibnite (Sb2S3), boulangerite (Pb5Sb4S11), bournonite (PbCuSbS3), bertherite (FeSbS4), and valentinite (Sb2O3). Bulk analyses by inductively coupled plasma mass spectrometry (ICP-MS) confirmed, for the first time published, the presence of a significant Hg content in the Kilkis Sb-ore. Furthermore, Kassandra Mines ores are found to contain remarkable amounts of Bi, As, Sn, Tl, and Se (excluding Ag, which is a bonus element). The above findings could contribute to potential future exploration and exploitation of Sb ores in Greece.
APA, Harvard, Vancouver, ISO, and other styles
3

Duff, Deanne, Charles Hurich, and Sharon Deemer. "Seismic properties of the Voisey’s Bay massive sulfide deposit: Insights into approaches to seismic imaging." GEOPHYSICS 77, no. 5 (September 1, 2012): WC59—WC68. http://dx.doi.org/10.1190/geo2011-0483.1.

Full text
Abstract:
Seismic methods offer significant potential advantages for minerals exploration over more traditional geophysical techniques because of the comparatively high resolution of seismic imaging. This is particularly true as minerals exploration is required to explore deeper to find resources. However, adaptation of seismic imaging techniques to the complex crystalline targets common in the mining environment requires a thorough understanding of the physical properties of the specific combination of ore and host rocks under consideration to choose an appropriate imaging technique. Analysis of the sulfide ores and associated host rocks from the Voisey’s Bay nickel-copper-cobalt deposit indicates that in the pyrrohotite-pentlandite-rich but pyrite-poor assemblage at Voisey’s Bay, seismic velocities are significantly lower ([Formula: see text]) than either the felsic or mafic host rocks ([Formula: see text] and [Formula: see text]). This observation is in contrast with pyrite-rich massive sulfide ores that have velocities that are significantly higher than typical host rocks. The large velocity contrast between the Voisey’s Bay ores and their host rocks makes them good targets for tomographic imaging. However, due to the trade-off between the low velocities and high densities of the Voisey’s Bay sulfides, acoustic impedance contrasts can be quite modest making them less attractive for seismic reflection imaging. Detailed analysis of two different mineralized zones at Voisey’s Bay further demonstrated that, depending on the limiting signal-to-noise ratio, the choice of an effective seismic imaging technique is not universal across a mineral deposit and may be affected by subtle variations in sulfide mineralogy and by the structural/magmatic setting. Our analysis clearly indicated that knowledge of physical properties and geologic setting is critical to the choice of which seismic technique to apply in a given exploration setting.
APA, Harvard, Vancouver, ISO, and other styles
4

Emerson, D. W., and H. K. Welsh. "Low‐frequency permittivities of skarns and associated rocks." GEOPHYSICS 53, no. 9 (September 1988): 1233–40. http://dx.doi.org/10.1190/1.1442564.

Full text
Abstract:
The lossy dielectric properties of dry heterogeneous skarns and associated rocks vary significantly when the real (ε′) and quadrature (ε″) permittivity responses are measured between 1 Hz and 160 kHz. Ores containing iron oxides and/or sulfides show very large permittivity values and high loss tangents with some dc conductivity. Unmineralized skarns manifest large ε′ and moderate ε″ values. Country rock, limestones, and granitoids show relatively low permittivities. The dielectric responses are ascribed generally to Maxwell‐Wagner mechanisms. No clear, convincing correlations are apparent between petrological characteristics and dielectric properties, but as iron and titanium content increases, so does the imaginary permittivity. Both real and imaginary permittivities are strongly influenced by density, and this effect must be removed before the effects of mineralogy can be observed.
APA, Harvard, Vancouver, ISO, and other styles
5

Lemos, Mariana, Teresa Valente, Paula Marinho Reis, Rita Fonseca, Itamar Delbem, Juliana Ventura, and Marcus Magalhães. "Mineralogical and Geochemical Characterization of Gold Mining Tailings and Their Potential to Generate Acid Mine Drainage (Minas Gerais, Brazil)." Minerals 11, no. 1 (December 31, 2020): 39. http://dx.doi.org/10.3390/min11010039.

Full text
Abstract:
For more than 30 years, sulfide gold ores were treated in metallurgic plants located in Nova Lima, Minas Gerais, Brazil, and accumulated in the Cocoruto tailings dam. Both flotation and leaching tailings from a deactivated circuit, as well as roasted and leaching tailings from an ongoing plant, were studied for their acid mine drainage potential and elements’ mobility. Detailed characterization of both tailings types indicates the presence of fine-grain size material hosting substantial amounts of sulfides that exhibit distinct geochemical and mineralogical characteristics. The samples from the ongoing plant show high grades of Fe in the form of oxides, cyanide, and sulfates. Differently, samples from the old circuit shave higher average concentrations of Al (0.88%), Ca (2.4%), Mg (0.96%), and Mn (0.17%), present as silicates and carbonates. These samples also show relics of preserved sulfides, such as pyrite and pyrrhotite. Concentrations of Zn, Cu, Au, and As are higher in the tailings of the ongoing circuit, while Cr and Hg stand out in the tailings of the deactivated circuit. Although the obtained results show that the sulfide wastes do not tend to generate acid mine drainage, leaching tests indicate the possibility of mobilization of toxic elements, namely As and Mn in the old circuit, and Sb, As, Fe, Ni, and Se in the tailings of the plant that still works. This work highlights the need for proper management and control of tailing dams even in alkaline drainage environments such as the one of the Cocoruto dam. Furthermore, strong knowledge of the tailings’ dynamics in terms of geochemistry and mineralogy would be pivotal to support long-term decisions on wastes management and disposal.
APA, Harvard, Vancouver, ISO, and other styles
6

Bouabdellah, Mohammed, Wissale Boukirou, Adriana Potra, Erik Melchiorre, Hassan Bouzahzah, Johan Yans, Khadra Zaid, et al. "Origin of the Moroccan Touissit-Bou Beker and Jbel Bou Dahar Supergene Non-Sulfide Biomineralization and Its Relevance to Microbiological Activity, Late Miocene Uplift and Climate Changes." Minerals 11, no. 4 (April 11, 2021): 401. http://dx.doi.org/10.3390/min11040401.

Full text
Abstract:
Through integration of Pb-Zn ± Cu non-sulfide mineralogy, texture, and stable isotope (C, O, S) geochemistry, the world-class Touissit- Bou Beker and Jbel Bou Dahar Mississippi Valley-type districts of the Moroccan Atlasic system have been investigated in order to gain insights into the origin and processes that contributed to the formation of the base metal non-sulfide mineralization. In both districts, direct replacement (“red calamine”) and wallrock replacement (“white calamine”) ores are observed. Based on the mineral assemblages, ore textures, and crosscutting relations, three distinct mineralizing stages are recognized. The earliest, pre-non-sulfide gossanous stage was a prerequisite for the following supergene stages and constituted the driving force that ultimately promoted the leaching of most base metals such as Zn and Cu and alkalis from their rock sources. The following two stages, referred to as the main supergene “red calamine” and late “white calamine” ore stages, generated the bulk of mineable “calamine” ores in the Touissit-Bou Beker and Jbel Bou Dahar districts. Stable isotope compositions (δ13CV-PDB, δ18OV-SMOW, δ34SCDT) support a three-stage model whereby metals were released by supergene acidic fluids and then precipitated by bacteria and archaea-mediated metal-rich meteoric fluids due to a decrease in temperature and/or increase of fO2. Oxygen isotope thermometry indicates decreasing precipitation temperatures with advancing paragenetic sequence from 33° to 18 °C, with wet to semi-arid to arid climatic conditions. The close spatial relationships between coexisting sulfide and non-sulfide mineralization along with stable isotope constraints suggest that the oxidation of sulfides occurred concurrently after the main stage of the Alpine orogeny between 15 Ma and the present. More importantly, the current data show for the first time the involvement of biologically controlled activity as the major driving process that triggered both oxidation and deposition of supergene mineralization at Jbel Bou Dahar and Touissit-Bou Beker districts. Conclusions drawn from this study therefore have implications for supergene Mississippi Valley-type (MVT) -derived non-sulfide deposits worldwide and account for the prominent role of biological processes in the genesis of this category of ore deposits.
APA, Harvard, Vancouver, ISO, and other styles
7

Dreier, John E. "Management of Copper Heap Leach Projects: A Geologist’s Perspective." SEG Discovery, no. 122 (July 1, 2020): 13–25. http://dx.doi.org/10.5382/geo-and-mining-08.

Full text
Abstract:
Editor’s note: The Geology and Mining series, edited by Dan Wood and Jeffrey Hedenquist, is designed to introduce early-career professionals and students to a variety of topics in mineral exploration, development, and mining, in order to provide insight into the many ways in which geoscientists contribute to the mineral industry. Abstract Copper production by heap leaching, coupled with solvent extraction and electrowinning (SX-EW), is a well-established technology, with an annual output of about 3.7 million tonnes (Mt) of copper metal. Ores presently amenable to copper heap leaching include copper oxides and secondary copper sulfides. Most copper deposits amenable to acid sulfate heap leaching result from supergene processes within porphyry copper systems, although copper heap leaching has been applied to sandstone and shale-hosted deposits, among others. Copper heap leaching is a rate-dependent process sensitive to copper mineralogy (copper oxides > secondary sulfides > hypogene sulfides), driven by the pH of the leach solution, the activity of ferric iron (Fe3+ (aq)) dissolved in the leach solution, and temperature. Acid consumption, a principal operating cost item, depends on the pH of the leach solution; the presence of reactive gangue minerals, notably carbonates, Ca plagioclase, pyroxene, Fe-rich amphibole, and olivine; and the cumulative surface area of material in the heap. There are three basic approaches to commercial copper heap leaching—run-of-mine, dedicated pad, and on-off pad leaching, with variables that include crushing, acid/ferric agglomeration, solution application rate, and leach solution pH. These approaches affect copper leach kinetics, overall copper recovery, acid consumption, and capital and operating costs. A successful copper heap leach evaluation program requires a systematic approach, beginning with geologic mapping, then drilling and hydraulic and metallurgical testing, and concluding with financial analysis, engineering, and permitting. As geologists are the unique party in the process, with a thorough understanding of the overall deposit geology, including ore and gangue mineralogy, the domains that comprise the deposit, and the geochemistry of leaching, they must remain fully involved in the project throughout the evaluation. At the outset, geologists must manage the drilling program and define the grade-mineral domains. Later, they must participate in the metallurgical and hydraulic testing programs, including the evaluation of test results; then, during financial modeling, they must collaborate with all of the other specialists.
APA, Harvard, Vancouver, ISO, and other styles
8

Iurii, Erokhin, Zakharov Anatolii, and Leonova Liubov. "Slags of chromium cast iron production from Alapaevsky plant (composition and geoecology)." Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal, no. 5 (August 6, 2020): 90–99. http://dx.doi.org/10.21440/0536-1028-2020-5-90-99.

Full text
Abstract:
Relevance. The Ural region has been the metallurgical center of Russia for more than 300 years, and a huge amount of waste slag has accumulated here. The study of the material composition of the slag is an urgent task. Many slags are potential ores that can be further processed. 98 "Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal". No. 5. 2020 ISSN 0536-1028 Research aims to study of the mineral composition of slag from the Alapaevsky metallurgical plant, obtained in the production of chromium cast iron. Research methodology. The chemical composition of minerals was established using a JSM-6390LV Scanning Electron Microscope from Jeol with the INCA Energy 450 X-Max 80 energy-dispersive attachment from Oxford Instruments (IGG UB RAS, Ekaterinburg). For the analysis polished petrographic thin sections cut from pieces of slag were used. Originality. Slags material composition was studied from the point of view of classical mineralogy and with the use of modern mandatory nomenclature of the International Mineralogical Association. Findings. The mineralogy of the Alapaevsky plant chromium cast iron production slags has been studied for the first time. It has been established that they are composed of a periclase-larnite aggregate with a significant content of gehlenite, magnesiochromite and the Ti-analogue of schulamitite, as well as the constant presence of wustite, spinel, sulfides and cast iron. These slags are the waste products of low-alloy heat-resistant chromium cast iron and pose a geo-ecological threat to the environment. Practical relevance. These slags can be recycled, as they contain easily distinguishable magnetic chromium cast iron and wustite. Almost half of the rock consists of periclase, which is a refractory raw material, and spinel can be used as an abrasive material
APA, Harvard, Vancouver, ISO, and other styles
9

Diallo, Mamadoudjan, Mohammed Bouabdellah, Gilles Levresse, Johan Yans, Francesca Castorina, Andreas Klügel, Mohamed Mouhagir, Salim El Mouden, and Lhou Maacha. "Mineralogy, Fluid Inclusion, and C-O-Sr Isotope Geochemistry to Unravel the Evolution of the Magmatic-Hydrothermal System at the Igoudrane Silver-Rich Deposit (Imiter District, Eastern Anti-Atlas, Morocco)." Minerals 11, no. 9 (September 12, 2021): 997. http://dx.doi.org/10.3390/min11090997.

Full text
Abstract:
The Igoudrane mine with a total production of 700,000 t of ore grading 485 g/t Ag is currently one of the most productive mines in the Imiter district of the eastern Anti-Atlas in Morocco. The silver-rich ± base metal deposit occurs dominantly as vein- and hydrothermal breccia-hosted orebodies at the interface between the lower Ediacaran turbidites of the Saghro Group and the unconformably overlying, dominantly felsic volcanic, and volcaniclastic rocks of the late Ediacaran Ouarzazate Group. Higher-grade ores are lithologically hosted by the uppermost organic-rich black shale unit and structurally controlled by the intersection of subvertical NW- and NE-trending fault systems. Ore-related hydrothermal alteration includes, in order of decreasing abundance, carbonatization, silicification, sericitization, and chloritization. Three primary paragenetic stages of veining and associated silver ± base metal mineralization have been recognized: (1) early pyrite + quartz + Ag-bearing sulfides and sulfosalts; (2) main Ag-bearing sulfides and sulfosalts + calcite ± fluorite ± dolomite; and (3) late quartz + calcite + base-metal sulfides (galena, sphalerite, pyrite, chalcopyrite). Irrespective of the ore stage, the dominant Ag-bearing ore minerals are Ag-Hg amalgam, argentite, freibergite, acanthite, polybasite, pyrargyrite, and proustite. Fluid inclusion data show a trend of decreasing temperatures with time, from the main silver stage (Th = 180 ± 12 °C) to late base-metal stage (Th = 146 ± 7 °C), consistent with fluid mixing, cooling, and/or dilution. The coexistence of aqueous-rich and vapor-rich fluid inclusions together with variations in bulk salinity (NaCl + CaCl2) of the mineralizing fluids during the main silver stage, at similar temperatures, indicate that boiling and subsequent degassing occurred during the main ore-forming event due to a pressure decrease. Calculated δ18Ofluid values along with REE+Y and Sr isotope constraints suggest that the ore-forming fluids originated from a predominantly magmatic source, although incursion of meteoric waters during collapse of the hydrothermal system could have contributed to deposition. The post-ore, base-metal quartz-carbonate-dominated mineralization was deposited from dilute Ca-Na-Cl-bearing fluids at temperature below 150 °C. Overall, fluid–rock interaction with the black shales along major faults and thin permeable horizons, boiling-degassing—with subsequent fluid mixing, cooling, and/or dilution—were the main mechanisms of silver deposition.
APA, Harvard, Vancouver, ISO, and other styles
10

Holwell, David A., Zeinab Adeyemi, Laura A. Ward, Daniel J. Smith, Shaun D. Graham, Iain McDonald, and Jennifer W. Smith. "Low temperature alteration of magmatic Ni-Cu-PGE sulfides as a source for hydrothermal Ni and PGE ores: A quantitative approach using automated mineralogy." Ore Geology Reviews 91 (December 2017): 718–40. http://dx.doi.org/10.1016/j.oregeorev.2017.08.025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Sulfides. Mineralogy Ores"

1

Seke, Makunga Daudet. "Optimisation of the selective flotation of galena and sphalerite at Rosh Pinah Mine." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-05162005-150525.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Becker, Megan. "The mineralogy and crystallography of pyrrhotite from selected nickel and PGE ore deposits and its effect on flotation performance." Thesis, Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-09272009-100136/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Törmänen, T. (Tuomo). "Ore mineralogy, geochemistry, and formation of the sediment-hosted sea floor massive sulfide deposits at Escanaba Trough, NE Pacific, with emphasis on the transport and deposition of gold." Doctoral thesis, University of Oulu, 2004. http://urn.fi/urn:isbn:9514276264.

Full text
Abstract:
Abstract Recent sea floor sulfide deposits form when seawater, heated within the oceanic crust, discharges to the sea floor. Upon mixing with cold seawater, sulfide-forming elements such as sulfur, iron, copper, and zinc are precipitated from the fluid. Actively forming sea floor massive sulfide deposits are found from different lithologic and tectonic environments varying from mid-ocean ridges to back-arc spreading centers. At a few localities, sulfide deposits are associated with turbiditic sediments that cover the axial valley of the spreading center. The southern part (Escanaba Trough) of the Gorda Ridge (NE Pacific) is one such example. At Escanaba Trough, massive sulfide deposits are associated with small sediment hills, which were uplifted by the intrusion of sills and laccoliths within the sediments. Hydrothermal deposits are dominated by pyrrhotite-rich massive sulfides, with subordinate amounts of sulfate-rich precipitates and polymetallic sulfides. Compared to deposits hosted by volcanites, Escanaba Trough sulfides contain relatively low amounts of copper and zinc. However, the average gold concentration is relatively high for a sediment-hosted deposit, and is comparable with other, Au-enriched, sea floor sulfide deposits. Despite the relatively high Au concentration in many volcanic-hosted sea floor sulfide deposits, discrete Au grains are rare. They occur mostly with sphalerite, pyrite, chalcopyrite and tetrahedrite-tennantite. Sixteen of the pyrrhotite-rich samples from Escanaba Trough were found to contain visible Au grains. They occur mostly with native Bi and various BiTe phases, and to lesser degree, with Fe-Co sulfarsenides. Transport of Au in sea floor hydrothermal systems is attributed to the presence of Au(HS)2- complex, which is destabilized when the fluid mixes with seawater. Hydrothermal fluids are generally undersaturated with respect to Au complexes and additional mechanisms, such as remobilizing earlier precipitated Au is required to explain the high Au concentrations encountered in many deposits. At Escanaba Trough the mechanism is attributed to early precipitation of Bi as melt droplets, at temperatures greater its melting temperature, as liquid Bi is capable of collecting Au even from an undersaturated fluid. Upon cooling Au is exsolved from the Bi host as native Au or maldonite (Au2Bi).
APA, Harvard, Vancouver, ISO, and other styles
4

Burkhard, Dorothee J. M. "Ore minerals and geochemistry in the serpentinites of the Eastern Central Alps (Davos to the Val Malenco) compared to occurrences in the Klamath Mountains (California and Oregon)." Heidelberg : Ruprecht-Karls-Universität, 1987. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016704785&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Healy, Raymond E. "Ore petrology and applied mineralogy of the Trout Lake massive sulfide deposit, Flin Flon, Manitoba." 1991. http://hdl.handle.net/1993/7212.

Full text
Abstract:
The ore mineralogy of the Trout Lake massive sulfide deposit, Flin Flon, Manitoba has been investigated. Nine ore types are defined, of which seven form a differentiation series from the Zn-rich hangingwall ores to the Cu-rich footwall ores. The remaining two ore types are of tectonic origin. Two groups of elements: (1) the Zn-Group (Zn, Cd, Sb, Pb, Ag, Hg, In, Sn and As), and (2) the Cu-Group (Cu, Se, Te, Co, and Fe) form the principal geochemical associations of the ores. Twenty six ore minerals including sulfides, oxides, sulfosalts, sulfantimonides, alloys, intermetallic compounds, tellurides and selenides have been identified. The principal Zn- and Cu-minerals are sphalerite and chalcopyrite, respectively. Twelve Ag-bearing minerals were identified or inferred, of which sulfosalts and tellurides account for<24% of the Ag, Au-Ag-Hg alloy for <19% of the Ag, and galena for 3% of the Ag in the ore. Chalcopyrite, pyrite and sphalerite are inferred to contain 45, 11 and 55ppm Ag, respectively, corresponding to 23, 14 and 19% of the Ag in the ore. The average composition of Au-Ag-Hg alloy (in wt%) is 49.2% Ag, 38.7% Au, 11.0% Hg and 0.70% Fe. 'Invisible' Au in pyrite (0.72ppm Au) and arsenopyrite (30.2ppm Au) account for 6 and 1%, respectively of the Au in the ore; 93% occurs as Au-Ag-Hg alloy. From image analysis determined grain size data, minimum grinds for liberating sphalerite, chalcopyrite, pyrite, galena and freibergite are calculated as +208um, -175um, -95um, -48um and -60um, respectively. Similarly, the optimum grinds for liberating the above minerals are -52um, -52um, -26um, -9um and -5um, respectively. Predicted minimum liberations are 73% for sphalerite, and 69% for chalcopyrite. Two textural types of Au-Ag-Hg alloy are recognized: (1) inclusions, grain coatings on, interstitial-fillings and fracture-fillings in, pyrite; and (2) large (<5mm) anastomosing masses. The losses of Au to the tailings are due largely to extremely fine-grained Type 1 Au-Ag-Hg alloy entrapped in pyrite (64%), and Au in solid solution in pyrite and arsenopyrite (36%). The principal Ag losses to the tailings are largely due to Ag in solid solution in pyrite, and poor recovery of pyrargyrite. The environmentally hazardous elements As and Hg are largely rejected to the tailings, and backfilled underground. Chalcopyrite Stringer and Disseminated Pyrite + Chalcopyrite ore types represent tectonically flattened feeder pipe mineralization. Vein Quartz + Chalcopyrite ore type is evidence of limited sulfide mobilization during metamorphism. Diablastic texture, characterized by myrmekitic intergrowths of chalcopyrite, sphalerite and pyrrohotite was produced by a quartz-diorite intrusion of the large Lens 2 of north zone. This texture is not amenable to grinding, and may yield middling particles of chalcopyrite and sphalerite, which will be recovered in the Cu-concentrate.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Sulfides. Mineralogy Ores"

1

Avdokhin, V. M. Okislenie sulʹfidnykh mineralov v prot͡s︡essakh obogashchenii͡a︡. Moskva: "Nedra", 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kalinin, A. A., Ye E. Savchenko, and V. Yu Prokofiev. Mineralogy and genesis of the Oleninskoe gold deposit (Kola Peninsula). FRC KSC RAS, 2021. http://dx.doi.org/10.37614/978.5.91137.446.4.

Full text
Abstract:
Data on geology of the Oleninskoe deposit, and results of mineralogical and geochemical investigations of ores and altered rocks are presented. Mineralization is connected with granite porphyry sills, an end member of gabbrodiorite-diorite-granodiorite complex of minor intrusions. The main alteration processes are diopsidization and biotitization, formation of quartz-muscovite-albite, quartz-aresenopyrite-tourmaline, and quartz metasomatic rocks. More than 50 ore minerals (sulfides, sulfosalts, tellurides, and native metals) were identified in the ore, including 20 minerals of silver and gold. Mineral associations in the ore and sequence of mineral formation are defined. Five generations of gold-silver alloys are identified, its composition covers spectrum from native silver to high-grade gold. Mineralized fluids in the deposit are of high salinity (sodium and calcium chlorides), and rich in As, Sb, Pb, Cu, Zn, and Ag. The Oleninskoe deposit is classified as an epithermal metamorphosed gold deposit.The book is of interest for specialists in economic geology, mineralogy and geochemistry of ore deposits.
APA, Harvard, Vancouver, ISO, and other styles
3

M, Jones Gail, and Geological Survey (U.S.), eds. Mineralogic and grade-tonnage information on low-sulfide Au-quartz veins. [Denver, Colo.?]: U.S. Dept. of Interior, Geological Survey, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

M, Jones Gail, and Geological Survey (U.S.), eds. Mineralogic and grade-tonnage information on low-sulfide Au-quartz veins. [Denver, Colo.?]: U.S. Dept. of Interior, Geological Survey, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

M, Jones Gail, and Geological Survey (U.S.), eds. Mineralogic and grade-tonnage information on low-sulfide Au-quartz veins. [Denver, Colo.?]: U.S. Dept. of Interior, Geological Survey, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Mineralogic and grade-tonnage information on low-sulfide Au-quartz veins. [Denver, Colo.?]: U.S. Dept. of Interior, Geological Survey, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

M, Jones Gail, and Geological Survey (U.S.), eds. Mineralogic and grade-tonnage information on low-sulfide Au-quartz veins. [Denver, Colo.?]: U.S. Dept. of Interior, Geological Survey, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Sulfides. Mineralogy Ores"

1

Tijskens, E., W. Viaene, P. Oyen, and J. Clifford. "Ore Mineralogy of the Tatestown Prospect, Ireland." In Base Metal Sulfide Deposits in Sedimentary and Volcanic Environments, 132–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-662-02538-3_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Çiftçi, Emin, Abdurrahman Lermi, and Bülent Yalçınalp. "Ore Mineral Textures of Late Cretaceous Volcanogenic Massive Sulfide Deposits of Turkey: Proposed Paragenetic Sequence." In Springer Geochemistry/Mineralogy, 91–97. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13948-7_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Petruk, William. "Mineralogical characteristics and processing of massive sulfide base metal ores from the Bathurst-Newcastle mining area." In Applied Mineralogy in the Mining Industry, 51–71. Elsevier, 2000. http://dx.doi.org/10.1016/b978-044450077-9/50005-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

"Sulfide Mineralogy, Geochemistry, and Ore Genesis of the Kidd Creek Deposit." In The Giant Kidd Creek Volcanogenic Massive Sulfide Deposit, Western Abitibi Subprovince, Canada, 163–224. Society of Economic Geologists, 1999. http://dx.doi.org/10.5382/mono.10.07.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

"Sulfide Mineralogy, Geochemistry, and Ore Genesis of the Kidd Creek Deposit." In The Giant Kidd Creek Volcanogenic Massive Sulfide Deposit, Western Abitibi Subprovince, Canada, 225–66. Society of Economic Geologists, 1999. http://dx.doi.org/10.5382/mono.10.08.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Sulfides. Mineralogy Ores"

1

Kuznetsov, Sergey. "VERKHNENIYAYUSKOE-2 GOLD-SULFIDE DEPOSIT IN POLAR URALS, RUSSIA: ORE MINERALOGY AND FORMATION CONDITIONS." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2015/b11/s1.066.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hagni, Richard D. "MINERALOGY AND ORE TEXTURES OF SULFIDES AT THE DECATURVILLE METEORITE IMPACT STRUCTURE IN SOUTH-CENTRAL MISSOURI." In 50th Annual GSA North-Central Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016nc-274962.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography