scholarly journals Relationship between chemical composition and magnetic susceptibility in the alkaline volcanics from the Isparta area, SW Turkey

2010 ◽  
Vol 119 (6) ◽  
pp. 853-860 ◽  
Author(s):  
Ömer Elitok ◽  
Züheyr Kamaci ◽  
M. Nuri Dolmaz ◽  
Kamil Yılmaz ◽  
Meltem Şener
Keyword(s):  
Magnetic Susceptibility ◽  
Chemical Composition ◽  
Sw Turkey

Magnetic susceptibility of a saprolite and a soil profile developed on pyroxenite at Mont-Saint-Bruno, Quebec, Canada

2001 ◽  
Vol 81 (2) ◽  
pp. 185-192
Author(s):  
C R De Kimpe ◽  
J. Dejou ◽  
Y. Chevalier
Keyword(s):  
Particle Size ◽  
Magnetic Susceptibility ◽  
Chemical Composition ◽  
Key Words ◽  
Soil Profile ◽  
Additional Information ◽  
Fe Oxides ◽  
Ti Oxides ◽  
Opaque Minerals ◽  
High Magnetic Susceptibility

Magnetic susceptibility (χ) measurements were performed with a recording magnetic susceptivimeter on a pyroxenite and its alteration products, i.e., a saprolite and the horizons of a soil profile. Pyroxenite contains a relatively high percentage of opaque minerals that, under alteration, transformed partly into Fe oxides with a high magnetic susceptibility. In the saprolite and the soil, χ values varied according to depth in the profile, particle size, mineralogical and chemical composition. Significant correlations between χ values and Fe and Ti oxides indicated the importance of opaque minerals, magnetite, maghemite and ilmenite to the magnetic susceptibility of the alteration products of the pyroxenite. This method provided additional information on the intensity of the alteration of the rock, especially on the formation of secondary Fe oxides at the expense of the ferromagnesian minerals. Key words: Magnetic susceptibility, pyroxenite, saprolite, maghetite, maghemite, opaque minerals

Study of the relationship between zinnwaldite chemical composition and magnetic susceptibility

2015 ◽  
Vol 72 ◽  
pp. 27-30 ◽  
Author(s):  
S. Chehreh Chelgani ◽  
T. Leißner ◽  
M. Rudolph ◽  
U.A. Peuker
Keyword(s):  
Magnetic Susceptibility ◽  
Chemical Composition ◽  
The Relationship

The X-Ray Studies and Magnetic Properties of Co0.83Fe1.8Se4

2010 ◽  
Vol 163 ◽  
pp. 213-216
Author(s):  
Ewa Maciążek ◽  
Tomasz Goryczka ◽  
Jerzy Mroziński ◽  
Izabela Jendrzejewska ◽  
Beata Zawisza
Keyword(s):  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Chemical Composition ◽  
Structure Analysis ◽  
Rietveld Method ◽  
Structure Refinement ◽  
Energy Dispersive ◽  
Monoclinic System ◽  
Ceramic Method ◽  
X Ray

The polycrystalline Co0.83Fe1.8Se4 compound was obtained using ceramic method. The chemical composition was verified using energy-dispersive X-ray fluorescence spectrometry (EDXRF) and EDS method. X-ray analysis was used to make phase and structure analysis. The Rietveld method was applied for structure refinement. Co0.83Fe1.8Se4 compound crystallized in monoclinic system, space group C . The magnetic susceptibility and magnetization were measured, they revealed ferrimagnetic properties of a sample.

scholarly journals Microstructure And Magnetic Properties Of The FeZr(Y)NbCuB Amorphous Alloys

2015 ◽  
Vol 60 (2) ◽  
pp. 1071-1074 ◽  
Author(s):  
J. Gondro ◽  
K. Błoch ◽  
M. Nabiałek ◽  
K. Waltters ◽  
M. Szota
Keyword(s):  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Chemical Composition ◽  
Curie Temperature ◽  
Amorphous Alloys ◽  
X Ray ◽  
Low Field ◽  
A Minor ◽  
Structure And Microstructure ◽  
Microstructure And Magnetic Properties

Abstract In this paper, the results of investigations are presented, into the microstructure and magnetic properties of the following amorphous alloys in the as-quenched state: Fe82Zr7Nb2Cu1B8 and Fe86Zr4Y3Nb1Cu1B5. The studied material was produced in the form of thin ribbons of 3 mm width and 20 μm thickness. The structure and microstructure of the samples have been investigated by means of Mössbauer spectrometry and X-ray diffractometry. In addition, the magnetic properties of these materials have been determined, i.e. the low-field magnetic susceptibility, and the magnetisation as a function of temperature and magnetising field. On the basis of the performed investigations, it has been found that a minor change in the quantities of elements favouring amorphisation, such as: Zr and Y, has an influence on the value of the Curie temperature and the magnetic properties of the resulting alloys. It should be noticed that the changes, introduced in the chemical composition of the alloys, don’t change the combined volume of these elements, i.e. Zr7 and Zr4Y3.

scholarly journals Mineralogical and Chemical Specificity of Dusts Originating from Iron and Non-Ferrous Metallurgy in the Light of Their Magnetic Susceptibility

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 216
Author(s):  
Mariola Jabłońska ◽  
Marzena Rachwał ◽  
Małgorzata Wawer ◽  
Mariola Kądziołka-Gaweł ◽  
Ewa Teper ◽  
...  
Keyword(s):  
Magnetic Susceptibility ◽  
Chemical Composition ◽  
Ferrous Metallurgy ◽  
Inductively Coupled Plasma ◽  
Ferrous Metal ◽  
Optical Emission ◽  
Inductively Coupled ◽  
Mineral Phases ◽  
Metallurgical Wastes ◽  
Production Stages

This study aims at detailed characteristics and comparison between dusts from various iron and non-ferrous metal production processes in order to identify individual mineral phases, chemical composition, and their influence on the values of magnetic susceptibility. Various analytical methods used include inductively coupled plasma optical emission spectroscopy, X-ray diffraction, scanning electron microscopy, and Mössbauer spectroscopy integrated with magnetic susceptibility measurements and thermomagnetic analysis. Metallurgical wastes that have arisen at different production stages of iron and non-ferrous steel are subjected to investigation. The analyzed dust samples from the iron and non-ferrous metallurgy differ in terms of magnetic susceptibility as well as their mineral and chemical composition. The research confirmed the presence of many very different mineral phases. In particular, interesting phases have been observed in non-ferrous dust, for example challacolloite, which was found for the first time in the dusts of non-ferrous metallurgy. Other characteristic minerals found in non-ferrous metallurgy dusts are zincite, anglesite, and lanarkite, while dusts of iron metallurgy contain mostly metallic iron and iron-bearing minerals (magnetite, hematite, franklinite, jacobsite, and wüstite), but also significant amounts of zincite and calcite.

scholarly journals Limnological response from high-altitude wetlands to the water supply in the Andean Altiplano

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ignacio García-Sanz ◽  
Inger Heine-Fuster ◽  
José A. Luque ◽  
Héctor Pizarro ◽  
Rodrigo Castillo ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Ecosystem Services ◽  
Chemical Composition ◽  
High Altitude ◽  
Environmental Conditions ◽  
Sediment Samples ◽  
Andean Altiplano ◽  
Andes Cordillera

AbstractThe Andean Altiplano-Puna is located at an elevation of approximately 4000 m.a.s.l. and is delineated by the Western and the Eastern Andes Cordillera. The high-altitude wetlands (HAWs) in the Central Andes are unique ecosystems located in the Altiplano that provide many ecosystem services. The objective of this study was to characterize the spatial heterogeneity of the environmental conditions associated with varying hydrology of the HAW, Salar de Tara, in the Andean Altiplano. Sediment samples of up to 20 cm in depth were obtained from various salt flat sub-environments. The samples were analyzed using proxies for mineralogical and chemical composition, thermal analysis, and magnetic susceptibility. Diatom and ostracod communities were also identified and analyzed. The results reflected changes in the geochemistry, carbon content, mineralogy, and magnetic properties of the sediments that can be explained by variations in the sources of water input to the Salar de Tara. The sub-environments depend on the supply of water via the groundwater recharge of springs adjacent to the streamflow from the Zapaleri River, which promotes greater diversity and richness of genera. Our results suggest that water extraction at industrial levels greatly impacts the persistence of hydrologically connected HAWs, which concentrate a worldwide interest in brine mining.

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