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Journal articles on the topic 'Ore mineral'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Zeng, Shu Qin, Xiao Lin Zhang, Dian Wen Liu, and Zhi Chong Wei. "Technology Study on Sichuan Refractory Lead-Zinc Ore." Advanced Materials Research 532-533 (June 2012): 115–20. http://dx.doi.org/10.4028/www.scientific.net/amr.532-533.115.

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Rude ores, which were collected from two lead-zinc oxide ore deposits in Sichuan province, are very difficult to process with low grade and uneven mineral dissemination. It is very difficult to separate valuable minerals from gangue minerals, especially for the recovery of lead and zinc minerals. On the basis of mineral characteristic study, author studied flotation technology on lead-zinc mineral, and gained satisfactory concentrate indicator by stage-grinding: the lead concentrate with a grade of 52.45 percents and a recovery of 79.30 percents and the zinc concentrate with a grade of 35.26 p

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2

Liang, Huan, Feng Zhou, Ze Ying Wu, Chun Jie Yan, and Wen Jun Luo. "Surface Characteristics and Flotation Behaviour of Low-Grade Manganese Ore." Advanced Materials Research 962-965 (June 2014): 361–69. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.361.

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Evaluation possibility of low grade manganese mineral from Hunan by froth flotation technique was investigated. Manganese mineral sample was characterized with mineralogical analysis, XRD, and SEM studies for its mineral content and surface characteristics. XRD analysis showed that the gangue contents of manganese minerals are constituted mainly by dolomite as a carbonate mineral, quartz and feldspar. SEM indicated that existence of rhodochrosite, which mainly fills in the dolomite minerals. The influences of important factors on manganese mineral flotation are investigated. The size of grind,

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3

Han, Xiu Li, Chang Cun Li, and Li Na Liu. "Study on Processing Mineralogy of Xuanhua Iron Ore." Applied Mechanics and Materials 50-51 (February 2011): 751–55. http://dx.doi.org/10.4028/www.scientific.net/amm.50-51.751.

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The chemical component, mineral composition and dissemination characteristics of Xuanhua iron ore are researched systematically. The result shows that: the iron ore mainly is oolitic structure and colloform, xenomorphic granular texture, the mineral composition is complex, the primary metallic minerals is hematite, and the rocky minerals mainly is quartz, followed by carbonate, epidote, chlorite, and amphibole. The diffraction size of hematite and rocky minerals is fine. It is difficult to liberate between hematite and rocky minerals and easy to be mud. The iron ore is very hard to separate, a

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4

Kang, Zhi Qiang, Zuo Hai Feng, Yong Gao Huang, Hong Yi Chen, Wei Fu, and Jia Fei Liao. "Mineralogical Study of Huashan Granite-Type Uranium Ore Deposit in Northeast of Guangxi." Advanced Materials Research 621 (December 2012): 17–22. http://dx.doi.org/10.4028/www.scientific.net/amr.621.17.

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Huashan granite-type uranium ore deposit is originated within the Huashan granite pluton in northeast of Guangxi, the mineral (mineralization) occurrences already found include Changchong, Baishijiao and Caomiping. Previous studies are relatively weak, especially in mineralogical characteristics, in this paper, a detailed study of minerals has been carried out through EPMA and EDS, the results show that the uranium mineral compositions of the three mineral (mineralization) occurrences are significantly different, but all of them are of secondary uranium minerals, among them, the main component

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5

Fu, Yan Xiong, Bao Liang Ge, Qing Li, and Jing Lu Zhang. "Process Mineralogy Study on a Sandstone Copper Ore." Advanced Materials Research 881-883 (January 2014): 1603–6. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.1603.

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In this thesis the object of study is a low grade sandstone copper with complex composition. Through the process mineralogy research on a sandstone copper ore,the result showed that the primary sulfide copper minerals are tetrahedrite and chalcopyrite; secondary sulfide copper minerals are bornite, chalcocite and azurite; the main oxide copper mineral is malachite; the main gangue mineral is quartz. The grade of copper is 0.77% and the oxidation rate is 45.45% in the run of mine, it is an oxide copper ore with not thoroughly oxidation. There is a part of disseminated particle size of copper mi

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6

Chen, Yong, Yongsheng Song, Wenjuan Li, and Liulu Cai. "Mineralogical Characteristics of a Micro-Fine and Low Grade Refractory Gold Ore." MATEC Web of Conferences 142 (2018): 02011. http://dx.doi.org/10.1051/matecconf/201814202011.

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Detailed characterization of a micro-fine, low-grade refractory gold ore from a beneficiation plant in Yunnan Province, China, was investigated. Different analytical techniques, such as videlicet size analysis, scanning electron microscopy, and mineral analysis by a Mineral Liberation Analyser, were used for mineralogical characterization of the ore. The results show that the most valuable metal is gold. Grain size of pyrites and arsenian pyrites, which are main gold carrying minerals, are mostly 1 ~ 30 μ m. The gangue mineral is composed of quartz, mica, dolomite and feldspar, while the conte

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7

Proidak, Andrii, Mykhailo Gasyk, and Yurii Proidak. "Research into phosphate mineral composition and waste phosphorite ore." Mining of Mineral Deposits 15, no. 1 (2021): 96–102. http://dx.doi.org/10.33271/mining15.01.096.

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Purpose. Theoretical and experimental studies of chemical and mineral composition and the structure peculiarities of phosphorites from Ukrainian deposits to define the degree of their suitability for other industries. Methods. The ore chemical composition was determined by conventional (wet) analysis using standard certified chemical reagents. The mineral composition was studied on the scanning electron microscope equipped with the attachment for the energy-dispersive electron microprobe analysis (EMPA) with the software for calculating the chemical composition of the studied sample microvolum

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8

Pérez-Barnuevo, Laura, Eric Pirard, and Ricardo Castroviejo. "TEXTURAL DESCRIPTORS FOR MULTIPHASIC ORE PARTICLES." Image Analysis & Stereology 31, no. 3 (2012): 175. http://dx.doi.org/10.5566/ias.v31.p175-184.

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Monitoring of mineral processing circuits by means of particle liberation analysis through quantitative image analysis has become a routine technique within the last decades. Usually, liberation indices are computed as weight proportions, which is not informative enough when complex texture ores are treated by flotation. In these cases, liberation has to be computed as phase surface exposed to reactants, and textural relationships between minerals have to be characterized to determine the possibility of increasing exposure. In this paper, some indices to achieve a complete texture characteriza

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9

Li, Xiu Juan, Si Qing Liu, Yang Zhao, and Ting Ting Li. "Tin Recovery from a Cassiterite-Bearing Magnetite Refractory Ore." Applied Mechanics and Materials 543-547 (March 2014): 3721–24. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.3721.

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s. Situated in Honghe Municipality of China, a magnetite-bearing cassiterite ore deposit is characterized by iron and tin minerals association in the oxide ores. Magnetite is the main iron mineral containing fine-sized cassiterite that should be recovered. Except for the complex mineral composition, the valuable minerals are finely disseminated in the ore, a joint process of magnetic and gravity concentration was used to process the ore. Results show that, a tin concentrate and a tin middlings can be obtained in processing the tailings of Low-intensity magnetic separation (LIMS), assaying 31.7

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10

Xie, Xian, Zi Xuan Yang, Xiong Tong, and Ji Yong Li. "Research on Exploration of Mineral Processing for a Iron Ore." Advanced Materials Research 1094 (March 2015): 397–400. http://dx.doi.org/10.4028/www.scientific.net/amr.1094.397.

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Iron ore minerals are mainly silicate-type iron minerals in raw ore, and its distribution rate was 51.93%; followed by magnetic iron, and its distribution rate was 36.81%; content and distribution rate of other minerals was very low; element grade of iron, phosphorus, sulfur, silica were 11.90%, 0.043%, 0.013% and 45.23%, the main gangue were silica and calcium oxide, recyclable iron minerals mainly is magnetic iron mineral. Due to the grade of iron of raw ore and the amounts of optional magnetite was relatively little, in order to investigate the optional of low-grade ore, weak magnetic separ

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11

Fan, Guixia, Liguang Wang, Yijun Cao, and Chao Li. "Collecting Agent–Mineral Interactions in the Reverse Flotation of Iron Ore: A Brief Review." Minerals 10, no. 8 (2020): 681. http://dx.doi.org/10.3390/min10080681.

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Froth flotation has been widely used in upgrading iron ores. Iron ore flotation can be performed in two technical routes: direct flotation of iron oxides and reverse flotation of gangue minerals with depression of iron oxides. Nowadays, reverse flotation is the most commonly used route in iron ore flotation. This review is focused on the reverse flotation of iron ores, consisting of reverse cationic flotation and reverse anionic flotation. It covers different types of collecting agents used in reverse iron ore flotation, the surface characteristics of minerals commonly present in iron ores (e.

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12

Volkov, A. V., and A. A. Sidorov. "The mineral wealth of the Pacific Ore Belt." Вестник Российской академии наук 89, no. 2 (2019): 157–65. http://dx.doi.org/10.31857/s0869-5873892157-165.

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Positive dynamics of world prices and the revival of exploration financing promote continued large investments in the construction of new mines to increase the production of minerals in the Pacific Ore Belt (POB). Several large deposits have been discovered, explored, and prepared for development in the countries of this region, thus attracting increased attention from mining companies. The total potential of mineral extraction in the POB, including in the East of Russia, could increase by 1.5–2 times over the coming years.

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13

Chen, Ci Yun, Shu Ming Wen, Yong Jun Xian, Qi Cheng Feng, and He Fei Zhao. "Recovery of Iron from Tailings of Yangla Copper Ore by Magnetic Separation." Advanced Materials Research 634-638 (January 2013): 3442–45. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.3442.

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Against the dwindling status of mineral resources at present, effective recycling of tailings resources is an effective way to alleviate the shortage of resources, and to improve enterprise efficiency. This study was aimed to recover iron from tailings of Yangla copper ore, Fe content of which was 15.31%, and the content of strong magnetic iron mineral was about 11%. Considering low content of weak magnetic iron mineral and its complex and costly recovery process, weak magnetic iron mineral did not be recovered, so strong magnetic iron mineral was only recovered in this study. Under no grindin

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14

Zhang, Zhong Hui, and Yao Zhong Lan. "Research on the Process Mineralogy of a Copper Ore in Yunnan Province." Advanced Materials Research 803 (September 2013): 347–50. http://dx.doi.org/10.4028/www.scientific.net/amr.803.347.

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This paper studies of the relationship between mineralogical characteristics and beneficiation of a copper ore in terms of process mineralogy.The study shows that the copper ore embraces little sulfide,its gangue minerals are deficient of ferrum and calcium,gangue minerals and copper minerals embedded micro-fine cloth, Fully grinding mill can make the mineral cleavage, and thus get good separation of minerals.

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15

Мырзабеков, Б. Э., Э. М. Ли, Т. Э. Гаипов, and А. Б. Маханбетов. "STUDY OF THE MATERIAL COMPOSITION OF THE SAMPLE MANGANESE-CONTAINING ORE DEPOSITS “KARAMOLA”." SERIES CHEMISTRY AND TECHNOLOGY 6, no. 444 (2020): 95–101. http://dx.doi.org/10.32014/2020.2518-1491.103.

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In this work, the material composition of the ore of the Karamola Deposit is studied. A sample of manganese ore from the Karamola Deposit with a size of 0-120 mm was received for research on the material composition. The manganese mineralization of the sample is represented by the mineral series polyanite-pyrolusite and WADA-psilomelane. Mineral secretions are crystalline earthy structures and mixed formations. Manganese oxides are distributed almost throughout the entire mass of the rock. They are represented by crystallized gel formations, soot, and skeletal structures. Ore gels permeate the

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16

Popov, V. A., M. A. Rassomakhin, and S. V. Kolisnichenko. "A Unique Ore Locality of Polyakovite-(Ce) in the Ilmeny Mountains, South Urals – New Finds." МИНЕРАЛОГИЯ (MINERALOGY) 6, no. 1 (2020): 17–32. http://dx.doi.org/10.35597/2313-545x-2020-6-1-2.

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A large crystal of the rarest mineral polyakovite was discovered in 2019 in the carbonatites-pegmatites of pit № 97 of the Ilmeny Mountains. Bodies of carbonatites, glimmerites, glimmerites-pegmatites and carbonatite-pegmatites are located within a small complex body of alkaline ultramafites and carry a unique range of mineral assemblages (rocks), as well as rare-metal and Ree minerals, which is unique for this famous mineral province. Figures 18. Tables 2. References 12. Key words: polyakovite-(Ce), rare-metal and Ree minerals, alkaline ultramafites, carbonatites, glimmerite, carbonatite-pegm

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17

Zhao, Li Bing, and Yue Xin Han. "Study on Size Distribution of the Copper and Nickel Ore." Advanced Materials Research 92 (January 2010): 221–27. http://dx.doi.org/10.4028/www.scientific.net/amr.92.221.

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Mineralogy research of the copper and nickel ore from Jinchuan is completed in detail that shows the mineral compositions and their percentage and particle size distributions of the valuable minerals. The main valuable minerals are pyrite, violarite, chalcopyrite which are closely associated with other sulphide minerals. These results provide an important basis for the beneficiation tests.

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18

Richards, G. "Ore inspired [China mineral processing industry]." Engineering & Technology 3, no. 15 (2008): 44–47. http://dx.doi.org/10.1049/et:20081508.

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19

Ding, Xing, Daniel E. Harlov, Bin Chen, and Weidong Sun. "Fluids, Metals, and Mineral/Ore Deposits." Geofluids 2018 (2018): 1–6. http://dx.doi.org/10.1155/2018/1452409.

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20

Mehmood, Rashid, Muhammad Arif Bhatti, Kashif Butt, Kamarn Raza Kazmi, and Adnan Akram. "Mineralogical, textural and liberation studies of tungsten ore deposits of Chitral, Khyber Pakhtoon Khwa Province, Pakistan." Journal of Nepal Geological Society 47, no. 1 (2014): 95–102. http://dx.doi.org/10.3126/jngs.v47i1.23125.

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An investigation was undertaken on tungsten ore deposits of Chitral area, Khyber Pakhtoon Khawa Province, Pakistan for its evaluation and subsequently selection of a suitable process for its beneficiation. The ore deposit was evaluated by microscopy, petrography, X-ray diffractometry and chemical analysis. The principal mineral constituents present in the ore were identified. The textural characteristics such as crystal size, shape and mutual arrangement of the component minerals in the ore body were investigated. The degree of liberation of valuable mineral was studied by grain mounts. Minera

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21

Rostovtsev, Viktor I., and Sergey A. Kondratyev. "INCREASING THE SELECTIVITY OF USEFUL MINERAL DISCLOSURE WHEN PROCESSING DIFFICULT POLYMINERAL RAW MATERIALS WITH PRELIMINARY WEAKENING." Interexpo GEO-Siberia 2 (July 8, 2020): 162–72. http://dx.doi.org/10.33764/2618-981x-2020-2-162-172.

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Previous studies at a number of research centers in our country, including the Institute of Mining, SB RAS and the Institute of Nuclear Physics, SB RAS, showed the possibility of improving process parameters of flotation concentration of difficult mineral raw materials due to preliminary electron-beam processing, which allows weakening minerals and rocks. Obtaining the data on selective disintegration and disclosure of minerals during ore pretreatment is important for technological application. This study aims at receiving the experimental data confirming an increase in the selectivity of disi

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22

Wang, Song, Jia Ping Zheng, Xiao Pei Zhang, and Shun Ran Wang. "Discussion on the Types Attribution and Comprehensive Utilization of High-Alumina Clay Ore." Advanced Materials Research 807-809 (September 2013): 2209–14. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.2209.

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High-Alumina clay ore is the protective exploitation of mineral stipulated by the Ministry of Land and Resources. Due to its physicochemical properties and ore characteristics are quite different from current ore types --refractory clay mineral. It is usually taken as a general refractory clay mine of high-Alumina clay in practical applications, which leads to massive misuse and great waste of high-Alumina clay ore. This paper will redefine the attribuation of high-Alumina clay ore by analysing its differences and similarities with refractory clay minerals and bauxite mines in mineralogy, rock

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23

Yuningsih, ST., MT., Ph.D, Euis Tintin. "ORE MINERALS FROM KUROKO TYPE DEPOSIT OF TOYA-TAKARADA MINE, HOKKAIDO, JAPAN." Buletin Sumber Daya Geologi 11, no. 2 (2016): 103–15. http://dx.doi.org/10.47599/bsdg.v11i2.14.

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Toya-Takarada mine is Au- and Ag-rich Kuroko-type deposit located in Takarada, Toya-mura, southwest Hokkaido, Japan. The deposits were hosted in rhyolitic tuff and mudstone of Middle Miocene age. Ore samples of fine-grained black ore, vuggy black-yellow ore, granular vuggy black ore, quartz-sulfide ore and massive quartz-barite ore were studied to identify the ore minerals association in the Toya-Takarada mine. The ore minerals are dominated by sphalerite, galena, chalcopyrite and pyrite with fewer amounts of electrum, tetrahedrite-tennantite, and other sulfosalt minerals with secondary minera

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24

Li, Zhi Wen, Cheng Dong Liu, Xuan Qing Zhao, Jian Hui Lu, and Guo Lin Guo. "The Mineral Characteristics and Occurrence of Gold in Nali Gold Deposit, Guangxi." Advanced Materials Research 936 (June 2014): 2383–88. http://dx.doi.org/10.4028/www.scientific.net/amr.936.2383.

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Using the analysis techniques of polarizing optical microscope and electron probe, mineral composition, ore texture and structure and the occurrence of Au in the primary ore are studied. The research shows that the main ore minerals in the ore include realgar, pyrite and arsenopyrite etc. Sulfur-stibarsen is the main carrier of Au, and is the major associated mineral of realgar, surrounded mainly by realgar, and partly is the associated mineral of arsenopyrite. The existence of visible gold and microscopic gold in the ore of this mining area can be excluded, and the gold might exist mainly in

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25

Yurgenson, G. A. "Rare-earth elements in the ore of the Bukukinskoye tungsten deposit (the Eastern Transbaikalia)." LITHOSPHERE (Russia) 21, no. 1 (2021): 90–102. http://dx.doi.org/10.24930/1681-9004-2021-21-1-90-102.

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Research subject. This study investigated the mineral association of quartz-wolframite veins of the Bukukinskoye tungsten deposit, with a particular focus on the content of rare-earth elements and their carrier minerals, their chemical composition and the distribution of light and heavy lanthanides. Materials and methods. The chemical composition of two groups of samples containing different ore minerals, as well as the mineral composition of ores was investigated on 143 samples in thin and polished sections using an AXIO ScopeAI optical polarizing microscope and a LEO 1430 VP scanning electro

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26

Gronen, Lars Hans, Sven Sindern, Janet Lucja Katzmarzyk, et al. "Mineralogical and Chemical Characterization of Zr-REE-Nb Ores from Khalzan Buregtei (Mongolia)—Approaches to More Efficient Extraction of Rare Metals from Alkaline Granitoids." Minerals 9, no. 4 (2019): 217. http://dx.doi.org/10.3390/min9040217.

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Alkaline rocks are worldwide observed as hosts for rare metal (Zr-REE-Nb) minerals. The classification of the ore bearing rock type is challenging due to the fact that textures and mineral assemblage are obscured by post-magmatic alteration. In addition, the alteration causes fine and intricate intergrowth of the ore minerals with associated gangue. Hence, intensive comminution is necessary to liberate the ore minerals, which is one parameter hampering the economical use of this deposit type. This study provides a quantitative mineralogical investigation of the ore bearing rock suite at Khalza

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27

Bakalarz, Alicja, Magdalena Duchnowska, and Andrzej Luszczkiewicz. "Influence of liberation of sulphide minerals on flotation of sedimentary copper ore." E3S Web of Conferences 18 (2017): 01025. http://dx.doi.org/10.1051/e3sconf/20171801025.

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Ore liberation is one of the most important parameter in mineral processing, especially in flotation. To separate the valuable components from gangue minerals, it is necessary to liberate one from others. It is achieve primarily through crushing and grinding. These stages are one of the most expensive of mineral production. It is important to determine the adequate mineral liberation which would result in huge savings in the overall cost of flotation plant. The aim of the paper was the analysis of the influence of milling time on the laboratory flotation of the copper ore from stratiform Polis

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Svietkina, Olena, Kostiantyn Bas, Jamil Haddad, Kyrylo Ziborov, and Valentyna Olishevska. "Mechanochemical Activation of Polymetallic Ore and Further Selective Floatation." Key Engineering Materials 844 (May 2020): 65–76. http://dx.doi.org/10.4028/www.scientific.net/kem.844.65.

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It has been demonstrated that shock-vibrating activation of minerals is a prospective method to impact the ore; it may be used to intensify chemical and physical-chemical processes of mineral raw material processing and preparation. Differences in the composition and phase properties, obtained both in terms of continuous and periodic modes, are in the fact that in the first case loadings deal with interlayer space preserving layered nature of the mineral. When the mode is continuous, then the disturbances cover the octahedral layer though elementary constituent – tetrahedrons – are preserved.

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Tong, Xiong, Xiao Wang, and Zheng Bin Deng. "Research on Au-Bearing Copper Ore in Flotation from Yunnan." Applied Mechanics and Materials 496-500 (January 2014): 410–13. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.410.

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In this study, the main aims were to recovery copper from Au-bearing Copper Ore by flotation. The main mineral is copper with 1.18% Cu and 0.75g/t Au. Same chalcopyrite in fine parts is encapsulated in gangue minerals, and some copper minerals exist as the intergrowth with pyrrhotite and pyrite. After study, the suitable mineral combined processing flowsheet of mixed flotation-copper sulphur separation with stage grinding and stage separation which consisting of one rougher-five concentrate-four scavenging flotation and highly efficient collector YL-3 developed independently,which has not only

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Wang, Yi Jie, Shu Ming Wen, Dan Liu, Chuan Fa Cui, and Bin Zhang. "Recovery Copper from a Complex Copper Sulfide Ore of Yunnan by Using Flotation." Applied Mechanics and Materials 737 (March 2015): 839–42. http://dx.doi.org/10.4028/www.scientific.net/amm.737.839.

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Copper ore is the main mineral for the large deposits. Copper minerals are mostly consisting of chalcopyrite, secondly consisting of bornite, there are traces of processing copper blue and malachite, the mineral is disseminated by coarse granularity. This mineral is easy to processing. Production process was using by the process of grinding-flotation. After grinding fineness, lime dosage, sodium sulfide dosage, collector and frother dosage, were determined by the open test. Closed circuit experiment was conducted by those optimal conditions identified in the above test, the recovery of copper

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Tsypin, E. F., T. Yu Ovchinnikova, and T. A. Efremova. "Efficiency of X-ray radiometric separation in preliminary concentration of ore." Mining informational and analytical bulletin, no. 3-1 (March 20, 2020): 431–42. http://dx.doi.org/10.25018/0236-1493-2020-31-0-431-442.

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One of the efficient approaches to improvement of mineral processing technologies is the enhancement of ore pre-treatment with preliminary concentration. A promising dressing technique is X-ray fluorescent separation applied to various minerals to date. This process efficiency depends on various factors connected with characteristics of minerals to be processed, dressability of minerals in the preliminary concentration, geological characteristics, physical and mechanical properties of minerals, specifics of the pre-treatment circuits and modes, as well as with features of X-ray fluorescent sep

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Kotelnikov, Alexander E., Daria A. Kolmakova, and Elena M. Kotelnikova. "Determination of the copper-nickel ores formation sequence of the Kun-Manye deposit (Amur region)." RUDN Journal of Engineering Researches 21, no. 1 (2020): 48–57. http://dx.doi.org/10.22363/2312-8143-2020-21-1-48-57.

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The purpose of the article is to determine the sequence of mineral formation of copper-nickel ores of Kun-Manie deposit, which is located in Zeya district of Amur region. Three ore chutes take part in the structure of the deposit. Ore-bearing formations are sheet and sheetlike bodies of ultra-basic composition of the Kun-Manien complex, lying among rocks of crystal foundation of the Early Archean. Among the rocks, hornblende differences of gabbro-pyroxenites and pyroxenites predominate. In addition to nickel, the ores contain a wide range of associated components. The ores oxidation zone withi

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33

Vaughan, D. J., R. A. D. Pattrick, and R. A. Wogelius. "Minerals, metals and molecules: ore and environmental mineralogy in the new millennium." Mineralogical Magazine 66, no. 5 (2002): 653–76. http://dx.doi.org/10.1180/0026461026650054.

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AbstractAspects of the (bio)geochemical cycling of metals (including Fe, Cu, Pb, Zn, Hg, As, Sb, U, Tc, Np) at or near the Earth's surface are discussed with reference to the recent work of the authors. Key stages of the breakdown of metalliferous minerals, transport of metals as solution complexes or colloidal precipitates, and interaction of metals in solution with the surfaces of minerals are considered. Emphasis is on molecular-scale observations using techniques such as scanning probe microscopy, photoelectron and (synchrotron) X-ray spectroscopies. The importance of the biological/minera

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34

Trichos, D., G. Alevizos, A. Stratakis, E. Petrakis, and M. Galetakis. "Mineralogical investigation and mineral processing of iron ore from the Skines area (Chania – West Crete)." Bulletin of the Geological Society of Greece 47, no. 4 (2016): 1652. http://dx.doi.org/10.12681/bgsg.11009.

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Several iron ore occurrences are placed in the island of Crete and especially in the prefectures of Chania and Rethymno (Western Crete), some of which have been occasionally exploited. The aim of the present study is the mineralogical examination and the investigation of mineral processing potential of an iron ore occurrence located in the area of Skines village near to the city of Chania. The investigated iron ore occurrence form lenses which are placed within the contact of the phyllitequartzite of Phyllite-Quarzite-Series (PQS) of Crete and the overlaid limestones. The major minerals of the

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35

Ivasenko, Ruslan N., Yuri V. Popov, Marina I. Fomina, Tatiyana I. Mikhalitsyna, and Elena D. Skilskaya. "Mineral Associations of Gold-Ore Occurences, Berental Ore Cluster (North-East of Russia)." UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, no. 1 (205) (March 31, 2020): 53–61. http://dx.doi.org/10.18522/1026-2237-2020-1-53-61.

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Berental prospective ore cluster (Magadan region) hosts a many ore occurrences, which differ in mineral composition, ore productivity, features of secondary and primary dispersion halos. As a result of the study of ores, mineral associations have been characterized, the stages of formation of ore occurrences and the alteration of the ore cluster have been established. The interrelation of five genetic types of native gold with mineral associations is revealed. Key ore occurrences have formed during several stages of ore formation associated with the evolution of a common hydro-thermal system.

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Leontev, Vasilii Ivanovich, and Konstantin Chernigovtsev. "Ore Mineralization of the Epithermal Samolazovskoe Gold-Ore Deposit, Aldan Shield (Russia)." Key Engineering Materials 769 (April 2018): 213–19. http://dx.doi.org/10.4028/www.scientific.net/kem.769.213.

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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–

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Okada, Natsuo, Yohei Maekawa, Narihiro Owada, Kazutoshi Haga, Atsushi Shibayama, and Youhei Kawamura. "Automated Identification of Mineral Types and Grain Size Using Hyperspectral Imaging and Deep Learning for Mineral Processing." Minerals 10, no. 9 (2020): 809. http://dx.doi.org/10.3390/min10090809.

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In mining operations, an ore is separated into its constituents through mineral processing methods, such as flotation. Identifying the type of minerals contained in the ore in advance aids greatly in performing faster and more efficient mineral processing. The human eye can recognize visual information in three wavelength regions: red, green, and blue. With hyperspectral imaging, high resolution spectral data that contains information from the visible light wavelength region to the near infrared region can be obtained. Using deep learning, the features of the hyperspectral data can be extracte

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Tămaș, Călin G., Nicolae Har, Ioan Mârza, and Ioan Denuț. "The black calcite and its mineral assemblage in Herja ore deposit, Romania." European Journal of Mineralogy 30, no. 6 (2018): 1141–53. http://dx.doi.org/10.1127/ejm/2018/0030-2779.

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Donskoi, Eugene, Sarath Hapugoda, James Robert Manuel, et al. "Automated Optical Image Analysis of Iron Ore Sinter." Minerals 11, no. 6 (2021): 562. http://dx.doi.org/10.3390/min11060562.

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Sinter quality is a key element for stable blast furnace operation. Sinter strength and reducibility depend considerably on the mineral composition and associated textural features. During sinter optical image analysis (OIA), it is important to distinguish different morphologies of the same mineral such as primary/secondary hematite, and types of silico-ferrite of calcium and aluminum (SFCA). Standard red, green and blue (RGB) thresholding cannot effectively segment such morphologies one from another. The Commonwealth Scientific Industrial Research Organization’s (CSIRO) OIA software Mineral4/

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Tanaka, Yoshiyuki, Hajime Miki, Gde Suyantara, Yuji Aoki, and Tsuyoshi Hirajima. "Mineralogical Prediction on the Flotation Behavior of Copper and Molybdenum Minerals from Blended Cu–Mo Ores in Seawater." Minerals 11, no. 8 (2021): 869. http://dx.doi.org/10.3390/min11080869.

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The copper ore in Chilean copper porphyry deposits is often associated with molybdenum minerals. This copper–molybdenum (Cu–Mo) sulfide ore is generally mined from various locations in the mining site; thus, the mineral composition, oxidation degree, mineral particle size, and grade vary. Therefore, in the mining operation, it is common to blend the ores mined from various spots and then process them using flotation. In this study, the floatability of five types of Cu–Mo ores and the blending of these ores in seawater was investigated. The oxidation degree of these Cu–Mo ores was evaluated, an

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Wood, AO, Dan, and Jeffrey Hedenquist. "Mineral Exploration: Discovering and Defining Ore Deposits." SEG Discovery, no. 116 (January 1, 2019): 1–22. http://dx.doi.org/10.5382/geo-and-mining-02.

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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 For economic geologists, mineral exploration has a specific objective: the discovery of mineral concentrations that can be recovered economically to provide resources essential for society. This was achieved consistently until the first decade of the current

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Ngadenin, Ngadenin, Frederikus Dian Indrastomo, Widodo Widodo, and Kurnia Setiawan Widana. "Identifikasi Keterdapatan Mineral Radioaktif pada Urat-Urat Magnetit di Daerah Ella Ilir, Melawi, Kalimantan Barat." EKSPLORIUM 40, no. 1 (2019): 33. http://dx.doi.org/10.17146/eksplorium.2019.40.1.5350.

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ABSTRAKElla Ilir secara administratif terletak di Kabupaten Melawi, Kalimantan Barat. Geologi regional daerah Ella Ilir tersusun atas batuan malihan berumur Trias–Karbon yang diterobos oleh batuan granitik berumur Yura dan Kapur. Keterdapatan mineral radioaktif di daerah tersebut terindikasi dari radioaktivitas urat-urat magnetit pada batuan malihan berumur Trias–Karbon dengan kisaran nilai 1.000 c/s hingga 15.000 c/s. Tujuan dari penelitian ini adalah menentukan jenis cebakan mineral bijih dan mengidentifikasi keterdapatan mineral radioaktif pada urat-urat bijih magnetit di daerah Ella Ilir.

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Nguyen, Hoang Kim. "Gold metallogenic zoning and mineralized prospect in Dalat zone." Science and Technology Development Journal 16, no. 2 (2013): 85–96. http://dx.doi.org/10.32508/stdj.v16i2.1434.

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Dalat structural zone was had formed in tectonic setting of continental margin arc in late Mesozoic, have given structural and metallogenic zoning. In this Dalat structural zone, gold is one of the few endogenous minerals is significant mineralization in the study and search - exploration. Endogenic gold distribution in Dalat zone are controlled by main factors such as: structure – locally tectonics (structural fold, brittle fault, structure of dome top of granitoid intrusions, tectonic setting), intrusion (related to gold mineralization), stratigraphy-lithology (environmental containments: vo

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Claassen, J. O., and P. G. Laurens. "Mineral resource management: Evaluating mineral resource throughput management." South African Journal of Business Management 47, no. 1 (2016): 9–20. http://dx.doi.org/10.4102/sajbm.v47i1.48.

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Mining operations are increasingly challenged to sustain and improve its profitability. Mineral Resource Throughput Management (MRTM) is showing immense promise to become a fit for use mining management and improvement methodology. Research indicated that the three dimensions of MRTM, namely physical and non-physical constraint management, product payability improvement and optimised decision-making are largely based on the theory of mechanistic and organic systems, the theory of constraints and chaos theory. It also enhances best practices in quality and mining operations management. Managing

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Koizhanova, A. K., G. V. Sedelnikova, M. B. Erdenova, A. N. Berkinbaeva, and E. M. Kamalov. "Study of biohydrometallurgical technology used to recover gold from ore at a gold-recovery plant." Kompleksnoe ispolʹzovanie mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik shikisattardy Keshendi Paidalanu 316, no. 1 (2021): 24–31. http://dx.doi.org/10.31643/2021/6445.03.

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The article contains the results of the studies performed for the biochemical eхtraction modes for mineral raw materials using thionic bacteria Acidithiobacillusferrooxidans of a certain strain capable to oxidize sulfide minerals. A representative sample of mineral raw materials was taken, and its physical and chemical studies were performed. The optimal conditions to leach mineral raw materials with biochemical solvents based on various factors (temperature, S:W) were established. Modern physical and chemical methods of analysis were used during the study: X-ray fluorescence, X-ray phase, min

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Ngadenin, Ngadenin, Frederikus Dian Indrastomo, Adhika Junara Karunianto, and Ersina Rakhma. "Geologi dan Identifikasi Cebakan Bijih di Daerah Batubesi, Belitung Timur." EKSPLORIUM 38, no. 1 (2017): 7. http://dx.doi.org/10.17146/eksplorium.2017.38.1.3376.

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ABSTRAKWilayah Batubesi di Belitung Timur berada di zona bagian timur dari granit jalur timah Asia Tenggara sehingga diduga merupakan daerah yang sangat potensial bagi terbentuknya cebakan bijih seperti besi dan timah bersama dengan monasit dan mineral asesoris lainnya. Penelitian ini bertujuan untuk mengetahui tataan geologi dan mengidentifikasi keterdapatan cebakan bijih dan mineral ikutan radioaktif di daerah Batubesi. Metodologi dalam penelitian ini adalah pemetaan geologi, pengukuran kadar uranium dan thorium, analisis petrografi, mineragrafi, dan butir. Daerah penelitian tersusun atas sa

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Nie, Yi Miao, Qi Hui Dai, and Xiao Long Lu. "Experimental Research of Low-Grade Tin-Iron Ore Separation." Advanced Materials Research 641-642 (January 2013): 377–80. http://dx.doi.org/10.4028/www.scientific.net/amr.641-642.377.

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Iron ore and tin mineral are the mainly recovered minerals of the low-grade ore, which could be effectively separated by a strong magnetic separation-gravity concentration process, with ore iron grade of 20.3%, tin grade 0.18%. Stage grinding and stage separation was used, getting the grade of iron concentrate and the recovery rate of tin separation index, the feeder of tin was magnetic separation tailing, by shaking table re-election, obtained tin concentrate grade was 10%, production was 0.34% (compared to the original ore, tin dressing) .Tin concentration ratio reached more than 330.

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Bakri, Hasbi, Harwan Harwan, Alam Budiman Thamsi, Irzal Nur, Firdaus F, and Andi Fahdli Heriansyah. "Paragenesis Prospek Endapan Bijih Besi Daerah Tanjung Kecamatan Bontocani Kabupaten Bone, Sulawesi Selatan." Jurnal Geomine 9, no. 2 (2021): 179–86. http://dx.doi.org/10.33536/jg.v9i2.971.

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Iron ore is the second most abundant metal on earth. The characteristics of this iron ore usually consist of iron ore carrier minerals associated with other minerals. One area that has iron ore prospects is the Tanjung area, Bontocani District, Bone Regency. The purpose of this study was to determine the types of iron ore carrier minerals and their associations, mineralization characteristics and paragenesis of iron ore carrier minerals. The data collection technique is carried out directly in the field by taking random samples in the field according to field conditions. Laboratory analysis us

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Ellefmo, Steinar L., Kurt Aasly, Aleksandra Lang, Veena S. Vezhapparambu, and Camilo A. M. Silva. "Geometallurgical Concepts Used in Industrial Mineral Production." Economic Geology 114, no. 8 (2019): 1543–54. http://dx.doi.org/10.5382/econgeo.4685.

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Abstract Geometallurgy has developed since the 1970s, primarily on metallic ore operations. In parallel, industrial mineral operations have been optimized through detailed deposit knowledge and market development, without making specific reference to geometallurgical concepts. The Norwegian mining industry is dominated by industrial mineral and construction material operations, and, in this paper, key differences between the industrial mineral and the metallic ore sectors are investigated, along with their influence on the development and the use of economic block models and optimization metho

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Chen, Xiao Qing, Jin Zhong Yang, Yi Lin Mao, and Wei Ping Yan. "Study on Mineral Processing Technology of Unutilizable Lead-Zinc Mixed Ore." Advanced Materials Research 734-737 (August 2013): 993–1000. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.993.

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The detailed research and analysis of ore properties was conducted on a certain unutilizable lead-zinc mixed ore in Yunnan, China, and in view of the ore properties, the sulfide ore and oxidized ore were graded, separated and enriched respectively, correspondingly, zinc concentrate, lead-zinc concentrate and lead oxide concentrate were produced, in addition, associated silver mineral was enriched in lead-zinc concentrate and lead oxide concentrate. On the basis of mineral separation technology study of polymetallic ore, the complex and inseparable lead-zinc ore and its associated mineral resou

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