Discussion: Features of formation of Mg2TiO4−FeFe2O4 titanomagnetites

Category: 16-2
R.R. Gubaidullin, V.I. Maksimochkin, M.Ya. Gareeva, N.N. Bikkulova

UDC 550.382.3

 

 

 

 

R.R. Gubaidullin(1), V.I. Maksimochkin(2), M.Ya. Gareeva(1),

N.N. Bikkulova(1)

 

(1) Sterlitamak Branch, Bashkir State University, Sterlitamak, Russia

(2) Lomonosov Moscow State University, Moscow, Russia

 

Abstract. The paper presents an investigation into features of formation of magnesium-containing titanomagnetites series xMg2TiO4(1–x)FeFe2O4 in the thermodynamic conditions of forming them in the rocks of the Earth’s crust. Studies have allocated compositions formed as a single-phase (with x=0.1, 0.2, 0.3) and a multi-phase
(x=0.4, 0.5) ferrimagnetic minerals. Formation of multiphase grains minerals at temperatures exceeding the maximum Curie point, allows thermoremanent magnetization to emerge on the complex phase composition. Agreement between the experimental data obtained on synthesized and natural magnesium-containing
titanomagnetites allows the use of minerals series Mg2TiO4−FeFe2O4 as sources of paleomagnetic information.

 

 

Keywords:  magnesium-titanomagnetites, qandilite, miscibility of solid solutions, X-ray analysis, magnetic characteristics.

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