Annotation. The article is devoted to the development of an effective technology for processing serpentinite ores from Bozymchak deposit in Kyrgyz Republic. Based upon analysis mineralogical, physical and chemical parameters ore, authors set reasons decrease technological indicators existing concentrator determine concentrating properties reviewed resistant material by applying methods intensif...

Biomining, the biotechnology that uses microorganisms to extract metals from ores and concentrates, is currently used exclusively for processing reduced ores and mine wastes. Metals of economic value also occur extensively in oxidized ores, such as nickel laterites. While these are not amenable to oxidative dissolution, the ferric iron minerals they contain can, in theory, be disrupted by iron ...

Andean Ores, having been approved in respect to style and intellectual content, is referred to you for judgment. We have read this thesis and recommend that it be approved. Lead isotope ratios of ores and igneous rocks in the Central and Southern Andes show a large-scale geographic pattern related to magmatic source processes. This pattern changes in the Northern Andes for reasons that are not ...

Tourmaline-bearing quartz veins and replacement deposits, commonly copperand gold-bearing, are found in unusual concentration in northwestern Nevada and adjacent northeastern California in Triassic and Jurassic arc rocks and in the Cretaceous plutons that intrude them. Mines and prospects that exploit the tourmaline-bearing deposits are found in a zone approximately 70 miles long and 50 miles w...

The article discusses four alternative cyanide substitutes for the recovery of gold from ores and concentrates. Cyanide has been premier leach reagent over 100 years due to its high recovery, low cost reliability. However, environmental damage improper management led widespread research aimed at identifying developing less toxic leaching agents. most widely researched substitutes, but it is cle...

The presented studies are aimed to determine the formation patterns of gold-rare metal mineralization within one most inaccessible Arctic islands Russian Federation, Bolshevik Island Severnaya Zemlya archipela-go. relevance work is determined by high probability discovering a significant in terms reserves deposit, which proved many researchers on example known large deposits be typical feature ...

The recovery of gold from refractory ores and concentrates is a significant problem in the modern processing industry. use bacterial oxidation technology at Navoi Mining Metallurgical Combine (Uzbekistan) made it possible to increase share recoverable during Kokpatas Daugyztau deposits. However, operation biological installation, arose abundant foaming reactors. This article devoted issue bioox...

The Bou Azzer district in Morocco has a long mining history since the beginning of XXst century during which it become only world producer Co from primary, hydrothermal arsenide ores. Orebodies are structurally controlled, and mainly distributed along fault contacts between Cryogenian ophiolite-related serpentinite bodies intrusive quartz diorite or, locally, ophiolitic gabbros or Ediacaran vol...

In recent decades, the human demand for mineral resources has increased dramatically, and mining of shallow deposits basically been completed. The prospecting direction turned to concealed deposits. For this reason, various penetrating geochemical methods have developed find minerals a series exploration techniques proposed. At same time, use gene as new technique presented in years is feasible...

Abstract Microwave irradiation is a potential technology for use in rock fracturing. It of great significance the application microwave metal mines to understand cracking characteristics ores and mechanism action ores. Taking Hongtoushan copper ore, Sishanling iron Dandong gold ore as research objects, with different morphologies (bulk/particle samples) particle sizes were investigated. The was...