Results 51 to 60 of about 22,212 (300)

Leaching kinetics of gold mine tailings: the removal of manganese and iron by sodium carbonate [PDF]

E3S Web of Conferences, 2019
South Africa is a mineral-rich country with numerous metals and minerals such as gold, copper, and platinum group metals which are exploited to a significant extent.
Mashifana Tebogo, Sithole Nastassia
doaj   +1 more source

Reflectance spectroscopy and analytical techniques in characterising PGE-bearing host rocks

Geosystems and Geoenvironment, 2023
The Mettuppalaiyam mafic and ultramafic complex (MUC) is part of the Southern Granulite terrain in India. MUC is one of the promising sites for Ni-Cu-Cr and Platinum Group of Elements (PGE) mineralisation.
K. Tamilarasan, S. Anbazhagan, S. Ranjithkumar   +2 more
doaj   +1 more source

Climate Change Threatens Micronutrient Density of European Winter Wheat

Advanced Science, EarlyView.
Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao, Jennifer Michel, Eline Lorer, Markus Weinmann, Jacques Le Gouis, Claire Léon, Sibille Perrochon, David Alvarez, Vincent Leemans, Iñaki Balanzategui Guijarro, Jordi Moya Laraño, Sara Sánchez Moreno, Symanczik Sarah, Waibel Matthias, Hervé Vanderschuren, Cécile Thonar, Pierre Delaplace, Dominique Van Der Straeten   +17 more
wiley   +1 more source

COMPARATIVE ANALYSIS OF COMPOSITION OF GOLD FOIL FROM ARCHAEOLOGICAL MONUMENTS OF ALTAI, URALS, AND DON REGION: ICP-MS AND XRF DATA [PDF]

Минералогия, 2016
The composition of gold foil from archaeological monuments of Altai, Urals and Don region was studied with ICP-MS and XRF. The foil from the Altai and Uralian monuments is characterized by the higher contents of Pt (54–315 ppm) and Pd (3–13 ppm) in ...
V.V. Zaykov, K.A.Filippova, V.N. Udachin, E.V. Zaykova, M.A. Rassomakhin, Yu.D.Kraynev   +5 more
doaj  

Platinum-Group Minerals in the Placer of the Kitoy River, East Sayan, Russia

, 2021
The platinum-group minerals (PGM) in placer deposits provide important information on the types of their primary source rocks and ores and formation and alteration conditions. The article shows for the first time the results of a study of placer platinum
Dmitriy K. Belyanin, Yuriy C. Ochirov, Olga N. Kiseleva, Evgenia V. Airiyants, Sergey M. Zhmodik   +4 more
core   +1 more source

Unraveling the Molecular Mechanisms Underlying Spontaneous Multipolar Mitosis Through CIN‐seq

Advanced Science, EarlyView.
Multipolar mitosis, a hallmark of chromosomal instability (CIN), drives tumor heterogeneity but is challenging to study in live cells. Using CIN‐seq, a single‐cell multiomics method, we profiled rare CIN events and identified mechanisms associated with viable multipolar mitosis, including PTEN attenuation, Rho GTPase‐driven cytokinesis failure, and ...
Pin‐Rui Su, Ting‐Chun Chou, Maria Teresa López‐Cascales, Junfeng Huang, Tsai‐Ying Chen, Sjoukje van Wieren, Chan Li, Cecile Beerens, Li You, Jelle Storteboom, Miao‐Ping Chien   +10 more
wiley   +1 more source

Platinum-group element mineralisation in the Unst ophiolite, Shetland [PDF]

, 1984
The ophiolitic basic and ultrabasic rocks of the island of Unst, Shetland comprise a sequence of harzburgites, dunites, clinopyroxene-rich cumulates, and gabbro, within tectonic blocks that have been thrust over a migmatite complex during the Laxer ...
Leake, R.C., Gunn, A.G., Styles, M.T.
core  

MICRO-PIXE ANALYSIS OF PLATINUM-GROUP MINERALS FROM PLACER DEPOSITS

, 1992
Micro-PIXE and EPMA analyses of platinum-group minerals from placer deposits are being used in an attempt to determine whether the PGM are derived from ultramafic rocks by weathering, or formed directly in the placer by chemical accretion.
Criddle, Alan J., Tamana, Hardeep, Vaughan, David, SPRATT, J, Spratt, John, TAMANA, H, VAUGHAN, D, GRIME, G, Grime, Geoff, CRIDDLE, AJ, Reeson, Karen J., REESON, KJ   +11 more
core   +1 more source

Atomic Defects in Layered Transition Metal Dichalcogenides for Sustainable Energy Storage and the Intelligent Trends in Data Analytics

Advanced Science, EarlyView.
This review comprehensively summarizes the atomic defects in TMDs for their applications in sustainable energy storage devices, along with the latest progress in ML methodologies for high‐throughput TEM data analysis, offering insights on how ML‐empowered microscopy facilitates bridging structure–property correlation and inspires knowledge for precise ...
Zheng Luo, Ying Yang, Zizhen Fu, Fengqi Liu, Susu Fang, Kele Xu, Shanshan Wang   +6 more
wiley   +1 more source

PGM MINERALS FROM PLACER OF THE MURZINKA-ADUI GRANITE GNEISSIC COMPLEX AND THEIR POSSIBLE SOURCES [PDF]

Минералогия, 2015
The paper presents the results of study of PGM minerals found in a small placer of the MurzinkaAdui granite gneissic block, Central Urals. We studied 65 PGM grains 0.1–0.8 mm in size including 42, 21, and 2 grains of the Os-Ir-Ru (±Pt, Rh) and Pt-Fe (±Ir,
V.V. Murzin, A.Yu. Kissin, D.A. Varlamov
doaj