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在大地震时常有各种颜色和形状的光发生。其中闪电式的光最多见。它是怎样产生的呢?在近二百多年中人们提出近20种的地光成因假设。多数假设认为这是大气放电现象。最近的两个假设是:1978年西德特里布茨奇认为,岩石的压电效应产生光,光又产生大量离子,这些离子使气溶胶粒子强烈带电,从而导致低层大气放电而发光。1982年美国拜尔利等人提出,在大震期间,断层摩擦产生显著热量,使岩石中的水汽化,从而岩石的电导率下
In large earthquakes often occur in a variety of colors and shapes of light. The most lightning-type light. How did it come about? In nearly two hundred years, people made nearly 20 kinds of ground light hypothesis. Most hypotheses consider this a phenomenon of atmospheric discharge. Two recent assumptions are: In 1978, West Trebotski believed that the rock’s piezoelectric effect produces light, which in turn generates large quantities of ions that strongly charge the aerosol particles, causing the lower atmosphere to discharge and emit light. In 1982, Bealey et al. Proposed that during the large earthquakes, the friction of the fault produced significant heat so that the water in the rock was vaporized and thus the conductivity of the rock