Investigation of mechano-luminescence of rocks and its possibility of earthquake prediction

对摩擦试验和拉伸试验引起的岩石力学发光进行了评价。结果表明，含石英量大的岩石的发光强度更强，氮气中的岩石在370 nm处出现峰值，对应于氮气的第二正带。认为岩石的机械发光是由压电效应和周围气体的等离子体引起的。

Mechano-luminescence of rocks induced by friction test and tensile test was evaluated. It was observed that the concluded that luminescence intensity of the rocks with large containing quartz was more intense and the peak at 370 nm which corresponds to the second positive band of nitrogen was observed by the rock in nitrogen gas. It was concluded that the mechano-luminescence of rocks was induced by piezoelectric effect and plasma of ambient gas.