نتایج جستجو برای: molybdenite concentrate

تعداد نتایج: 49306  

Journal: :Vestnik MGTU 2021

Sm-Nd isochrone, drawn for rock-forming and sulfide minerals from the Ozernoe ore occurrence, indicates albitite age of 1,759 ± 11 Ma. It shows synchronous formation mineralization, fully corresponds to earlier defined rutile in (1,757 7 Ma U-Pb, n = 3, MSWD 0.2), Rb-Sr isochrone 1,754 39 biotite, apatite, albite, WR. Recently published Re-Os ages molybdenite 1,872 23 chalcopyrite 1,891 230 ind...

Journal: :Ore Geology Reviews 2021

The Yuleken porphyry Cu-Mo deposit located in the Chinese Altay-East Junggar, a section of Central Asian Orogenic Belt, world's largest Phanerozoic subduction-accretionary orogen, witnessed multistage tectonic-magmatic evolution and mineralization from arc to syn- post-collision environment over time span about 52 Ma. Four types molybdenite have been distinguished: (1) primary magmatic-hydrothe...

Journal: :Composite Structures 2021

Since its discovery, graphene has been the object of study for several and manifold applications, ranging from photocatalysis to mechanics electronics materials. However, use pure in certain opto- microelectronic applications is sometimes limited because zero band gap. Among different methods widen gap, present work attention focused on so-called van der Waals composites (or heterostructures, o...

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1944

Journal: :Microscopy and Microanalysis 2020

Journal: :Minerals 2021

Exploration under thick glacial sediment cover is an important facet of modern mineral exploration in Canada and northern Europe. Till heavy concentrate (HMC) indicator methods are well established for diamonds, gold, base metals glaciated terrain. Traditional rely on visual examination >250 µm HMC material. This study applies liberation analysis (MLA) to investigate the finer (<250 µm) f...

Journal: :Minerals 2023

Molybdenite is a common sulfide hosting many trace elements. Trace elements in molybdenite from individual deposits have been widely used to constrain the source and conditions of ore-forming fluids. However, relationship between element composition deposit types has not well investigated large dataset. Here, simple statistics partial least squares–discriminant analysis (PLS-DA) were determine ...

Journal: :Metals 2021

Porphyry-type deposits are the major sources of copper and molybdenum, flotation has been adopted to recover them separately. The conventional reagents used for depressing minerals, such as NaHS, Na2S, Nokes reagent, have potential emit toxic H2S gas when pulp pH was not properly controlled. Thus, in this study applicability microencapsulation (ME) using ferrous phosphate ions an alternative pr...

Journal: :Scientific Papers of the Bureau of Standards 1918

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