Results 1 to 10 of about 43,206 (265)
Methodology for selection of the variant for opening the deeper parts of the Toranica mine [PDF]
Podzemni Radovi, 2021 Opening an underground mine or part of it presents complex and responsible issue, which affects the economy and effectiveness of the mine operation. This paper presents a methodology for selecting the optimal variant for opening, the lead-zinc ore mine ...
Despodov Zoran +3 more
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Effect of different potassium forms on growth, some physiological aspects and productivity of Egyptian cotton [PDF]
Journal of Plant Production, 2021 Two field experiments were carried out at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate, Egypt during 2019 and 2020 seasons, to evaluate the effect of foliar feeding with three sources of potassium [1- mineral source (potassium ...
A. Abd El All +2 more
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Sending Laurion Back to the Future: Bronze Age Silver and the Source of Confusion
Internet Archaeology, 2021 Silver-bearing lead ores at Laurion in Attica were considered to have been first exploited with the introduction of coinage sometime around the birth of Classical Greece. However, in the late 20th century this chronology was radically revised earlier, to
Jonathan R. Wood +2 more
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Precious Stones in Chagatai’s Turkish Period Works
İstanbul Üniversitesi Edebiyat Fakültesi Türk Dili ve Edebiyatı Dergisi, 2023 Since the creation of mankind, people have been interested in gemstones because of their properties, such as protection, decoration, use as accessories, and spiritual as well as physical healing.
Sümeyra Alan
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Study of Cu Recovery Comparison of Fresh, Stockpiled, and Mixed Ores Processing in Batu Hijau Mine – Sumbawa Island, Indonesia [PDF]
Journal of Pure and Applied Chemistry Research, 2022 Batu Hijau mine is one of the mining areas in Indonesia that have been operated for 20 years. The main concentrate product in Batu Hijau contains the primary minerals copper (Cu) and gold (Au). However, the mine is not only processing the fresh mined ore
Surya Hadi +6 more
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On the concept of in-situ metal leaching
Горные науки и технологии, 2020 The information on history of in-situ metal leaching method (ISL) was given. The role of Russian scientists and research organizations in research into ISL processes was shown.
O. Z. Gabaraev +3 more
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Truths and misconceptions in the ore comminution [PDF]
Mining and Metallurgy Engineering Bor, 2016 Inventions and now widely applied machines for ore comminution dated back to the second half of the 19th century. For the past 150 years, much theoretical knowledge was accumulated in the field of physics the solid bodies, physics of fracture, the theory
Magdalinović Nedeljko
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X-ray absorption spectroscopy study of the chemistry of «invisible» Au in arsenian pyrites [PDF]
E3S Web of Conferences, 2019 Arsenian pyrite is an abundant mineral occurring in many geological settings at the Earth’s surface, including hydrothermal ore deposits which are the main source of Au.
Filimonova Olga +8 more
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Machine Learning—A Review of Applications in Mineral Resource Estimation
Energies, 2021 Mineral resource estimation involves the determination of the grade and tonnage of a mineral deposit based on its geological characteristics using various estimation methods.
Nelson K. Dumakor-Dupey, Sampurna Arya
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Горные науки и технологии, 2019 The paper presents process layouts for excavation of zones near pit envelope based on the analysis of findings of the ore loss study in case of open-pit mining, as well as the results of field measurements in the quarry faces in Muruntau and Myutenbai ...
B. R. Raimzhanov +2 more
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