Results 41 to 50 of about 86,930 (291)
, 2022 Caption reads: "Mineralogy."Mineralogy classroom, with chairs, wall-mounted specimen cabinets, illustrations, and a stuffed or statuary ...
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Biological Reviews, EarlyView.ABSTRACT For millennia, human activities have transformed ecosystems globally. Determining which landscapes are predominantly anthropogenic is crucial to conservation and habitat restoration. Madagascar, a critically‐threatened biodiversity hotspot, is a prominent example.
Grant S. Joseph +7 more
wiley +1 more source
Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides
Chemie Ingenieur Technik, EarlyView.Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel +5 more
wiley +1 more source
MINERAL COMPOSITION OF ORE CLASTS OF THE NOVY SHEMUR MASSIVE SULFIDE DEPOSIT, NORTH URALS [PDF]
Минералогия, 2018 The features of mineral composition are considered for clastic ores composing the main part of rich Cu-Zn ores of the Novy Shemur massive sulfide deposit, North Urals.
N.P. Safina +3 more
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The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel +4 more
wiley +1 more source
Depth-dependent anisotropy in the Earth’s inner core linked to chemical stratification
Nature CommunicationsSeismic anisotropy in the Earth’s inner core (IC), including the heterogeneous, depth-dependent anisotropy structure, is a well-documented yet poorly understood feature plausibly related to the alignment of iron alloy crystals. Here, we report the effect
Efim Kolesnikov +8 more
doaj +1 more source
MINERALOGY OF THE OVERBURDEN ROCKS OF THE KOKLAN W-MO DEPOSIT (SOUTH URALS) [PDF]
Минералогия, 2015 The Koklan W-Mo deposit is overlapped by Mesozoic-Cenozoic rocks 120–140 m thick, which may be subdivided in four members on the basis of variable proportions of the rock-forming minerals (quartz, hydromica (with glauconite), smectites and X-ray ...
E.V. Belogub +3 more
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Известия Томского политехнического университета: Инжиниринг георесурсов, 2022 The relevance of the study is caused by the need to develop Russian guidelines for assessing the environmental state of bottom sediments and their impact on living organisms, as well as water bodies in general.
Irina N. Myagkaya +4 more
doaj +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Preparation, modification, and characterization of biochar from woodchips and its application in stream water filtration, evaluated through physicochemical and microbiological analyses. Abstract Global microbial water contamination affects 1.8 billion people, necessitating efficient and sustainable treatment methods.
Tariq Khalil +8 more
wiley +1 more source
The sapphirine-spinel hornblendites of Il’meno-Vishnevogorsky complex
Литосфера, 2017 The authors consolidated disparate information about sapphirine-bearing rocks of the Urals. It is shown that they belong to genetically different entities.
V. G. Korinevsky +6 more
doaj +2 more sources