ТЕРМООСТАТОЧНАЯ НАМАГНИЧЕННОСТЬ ГОРНЫХ РУД В СЛАБЫХ МАГНИТНЫХ ПОЛЯХ

Урусова Б.И.¹, Джатдоева С.Ю.²

¹Доктор физико – математических наук, ²Аспирант, Карачаево – Черкесский Государственный университет имени У.Д. Алиева

ТЕРМООСТАТОЧНАЯ НАМАГНИЧЕННОСТЬ ГОРНЫХ РУД В СЛАБЫХ МАГНИТНЫХ ПОЛЯХ

                            Аннотация

В работе экспериментально  исследовано влияние слабых магнитных полей на термоостаточную намагниченность горных руд. Ключевые слова: магнитное поле, горная руда, габбро,  намагниченность насыщения, термоостаточная намагниченность.

Urusova B.I.¹, Dzhatdoeva S. U.²

¹Doktor Physics - Mathematical Sciences, ²Aspirant, Karachay - Circassian State University named U.D. Aliyev

HERMOREMA- MAGNETIZATION OF THE THROTTLE IN WEAK MAGNETIC FIELDS

 Abstract

The paper used experimentally investigated the influence of the effect of weak magnetic fields on thermorema- magnetization of ores.

Keywords: magnetic field, mining ore, gabbro, saturation magnetization, thermoremanent magnetization.

We have previously [1] investigated the influence of strong magnetic fields on thermorema- magnetization of ores.

It was of interest to investigate the influence of weak magnetic fields on thermorema- magnetization of ores.

The aim of this work is to experimentally investigate the effect of weak magnetic fields on thermorema- magnetization of ores (gabbro).

Samples of ore mining (gabbro) were taken from the left bank of the river. Maruja, Zelenchuksky District, Karachay - Cherkess Republic, № 7/1022 borehole and age υPR-PZ₁.

Thermoremanent magnetization measurement was performed by the method of [2] in weak magnetic fields up to H = 1E.

Figure 1 shows the dependence of the intensity of thermoremanent magnetization -  mining ores (gabbro) from the external magnetic field H = 1E.

Fig. 1 shows that the intensity of thermoremanent magnetization of ores (gabbro) slightly increased. Evidently, weak field to form a more effective thermoremanent magnetization.

Fig. 1 - Intensity thermoremanent magnetization of ores (gabbro) in weak fields.

 

Thermoremanent magnetization dependence of weak magnetic fields can be expressed by the equation:

  (1)

where T₀- initial temperature; T_c-critical temperature;  a–const

Graphically, the expression (1) is shown in figure 2.

Fig. 2 - Dependence thermoremanent magnetization of the magnetic field - N

 

Mining ore (gabbro) during cooling in the earth's magnetic field becomes more stable and thermorema- magnetization. Upon further cooling intensity of magnetization termooostatochnoy  passes through the blocking temperature T_b -  (see figure 3).

A quantitative comparison of the experimentally obtained curves (sm.ris.1-3) leads to the fact that thermoremanent magnetization in weak magnetic fields obeys the additive, that is.

Fig.3 - The spectrum of thermoremanent magnetization mining ore (gabbro): 1-curve derived theoretically; 2- experimentally

 

There is a partial thermomagnetization mining ores (gabbro).

Thus, experimental studies termostatochnoy magnetization of ores (gabbro) in weak magnetic fields up to H = 1E showed:

• thermoremanent magnetization intensity increases slightly;
• maximum thermoremanent magnetization lies in the region of the blocking temperature - T_b;
• thermoremanent magnetization obeys the additive.

References

1. I. Urusova, A. S. Chausheva, FA Uzdenova, U.M.Laypanov "Thermorema- magnetization of rocks." Bulletin Iz GTU. Izhevsk.№2 (42) 2009.P119-122.
2. O.S. Galkina, B.I. Urusova, V.F.Shalashov "Magnetic properties of alloys Ho-Pr», FMM, №56, v.2,1983.P.-398-401.