摘要
本文利用主应变比异常理论分析了祁连建站以来地应变观测资料，认为肃南──祁连断裂段上及附近发生的地震是由于构造应力场的变化，在引张应力状态下，正断层或走滑断层易于活动而导致的。
Analyses of observed ground strain dstum by the abnormal theory of Principal strain ratio from 1990. 5 to 1992. 10 show that the earthquake on the Sunan-Qilian fault or nearby resulted from the change of structural stress field, but the change caused the activity of normal or strike-stip fault in the tension stale.
出处
《高原地震》
1995年第1期25-31,共7页
Plateau Earthquake Research
关键词
主应变比
地应变
应力场
Principal strain ratio
Ground strain
Stress field
