publication . Article . Other literature type . 2015

Thermal magnetic behaviour of Al-substituted haematite mixed with clay minerals and its geological significance

Zhaoxia Jiang;
Open Access English
  • Published: 01 Jan 2015
  • Country: Netherlands
S U M M A R Y Clay minerals and Al-substituted haematite (Al-hm) usually coexist in soils and sediments. However, effects of clay minerals on Al-hm during thermal magnetic measurements in argon environment have not been well studied. In order to quantify such effects, a series of Al-hm samples were synthesized, and were then mixed with clay minerals (illite, chlorite, kaolinite and Ca-montmorillonite). The temperature dependence of magnetic susceptibility curves in an argon environment showed that Al-substituted magnetite was produced during the thermal treatment via the reduction of Al-hm by the clay mineral, which leads to a significant magnetic enhancement of...
free text keywords: Environmental magnetism, Magnetic mineralogy and petrology, Rock and mineral magnetism, Geochemistry and Petrology, Geophysics, Illite, engineering.material, engineering, Magnetic susceptibility, Mineralogy, Magnetite, chemistry.chemical_compound, chemistry, Chlorite, Geochemistry, Kaolinite, Geology, Magnetic mineralogy, Clay minerals
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