摘要
对完整岩石破裂前和既存断层粘滑失稳前的红外辐射温度场进行了遥感观测研究。发现岩石破裂前在未来断层处出现条带状的红外热像。粘滑失稳前断层团销点出现升温现象。声发射测量表明，岩石破裂前已有大量做破裂产生。地壳中的既存断层和大展前的微小破裂均可能为震前地壳中的热能转移提供通道，从而导致地面热红外展兆的出现。
The infrared radiation temperature field before rock failure and fault stick-slipping hasbeen studied by remote sensing observation- It is revealed that before rock failure theband-like thermal images appeared in the position of future faults, and before stick-slip-ping the lock points of fault show the temperature increases. The measurement of acousticemission shows that before rock failure the plenty of micro fractures are produced. Thefaults and micro fracture in crust be fore earthquakes can provide paths for transference ofthermal energy in crust, and cause the thermal infrared precursor of earthquakes on theground .
出处
《地震》
CSCD
北大核心
1998年第1期83-88,共6页
Earthquake
基金
国防科学技术工业委员会资助
国家地震局资助!Y95-10
关键词
地震前兆
遥感
模拟实验
温度异常
热红外辐射
Earthquake precursor, Remote sensing, Acoustic emission, Simulated experiment,Temperature anomaly
