Momentary analysis of the electromagnetic radiation of gabbro rock under compressive stress

Abstract

The phenomenon of electromagnetic radiation resulting from the application of pressure to rocks is caused by physical and chemical processes. Applying uniaxial pressure on gabbro rocks breaks the peroxy bonds and produces electron-hole pairs. These holes flow in the volume of gabbro rock under pressure and cause changes in electric charge, and as a result, generate variable electric and magnetic fields that vary with time and create electromagnetic signal. In this research work, by measuring the electric current of gabbro rock under pressure, its Fourier function is extracted, and the equations of the electric and magnetic fields of the sample and the energy and radiation equations of electromagnetic waves are calculated. Also, the relationship between these equations and the electric current equation is expressed. In addition, the amounts of absorption, transmission, and reflection of electromagnetic radiation of the rock can be analyzed during the application of pressure using the diagram of the radiant power of electromagnetic signal. The study of electromagnetic radiation can be useful for the development of electromagnetic radiation technology, can provide early warning about the risk of rock falls, and can reduce human injuries caused by the fall of places such as mines and tunnels.