The emission of electromagnetic waves caused by the tectonics of the earth

سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 74

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تاریخ نمایه سازی: 1 بهمن 1401

چکیده مقاله:

Prior to large earthquakes the Earth sends out transient signals, sometimes strong, moreoften subtle and fleeting. These signals may consist of local magnetic field variations,electromagnetic emissions over a wide range of frequencies, a variety of atmospheric andionospheric phenomena. Great uncertainty exists as to the nature of the processes thatcould produce such signals, both inside the Earth’s crust and at the surface. The absenceof a comprehensive physical mechanism has led to a patchwork of explanations, whichare not internally consistent. Fround marked on the theory that most crustal rocks containdormant electronic charge carriers in the form of peroxy defects, O۳Si=OO n SiO۳, holdsthe key to a deeper understanding of these pre-earthquake signals .When rocks arestressed, peroxy links break, releasing electronic charge carriers, h_, known as positiveholes. The positive holes are highly mobile and can flow out of the stressed subvolume.The situation is similar to that in a battery. The h_ outflow is possible when the batterycircuit closes. The h_ outflow constitutes an electric current, which generates magneticfield variations and low frequency EM emissions. The study of chemical processes basedon a model equation for electromagnetic waves is presented.

کلیدواژه ها:


Babak Haghighi

Dept. of Physics, Faculty of Science, Islamic Azad University, mashhad Branch, mashhad,Iran