新疆伽师55井水温映震特征的初步研究

ESEARCH ON REFLECTION CHARACTERISTICS OF WATER TEMPERATURE FOR NO.55 WELL IN JIASHI,XINJIANG

系统整理和分析了新疆伽师55井数字化水温资料。该井水温对其周边地震有一定的映震率。水温异常主要表现为负值异常,震前形态特征表现为:下降—上升—发震,且异常的形态相似性较好;水温在两次地震中出现的同震响应形态不一致,主要是由于地震波的扰动,伴随振动效应的作用,加大了不同含水层间的垂直运动速率,从而产生水温上升或下降现象。

In this paper,the digital water temperature data for No. 55 well was systematically studied and analyzed in Jiashi,Xinjiang. There was a certain reflection rate between water temperature anomaly of the well and its surrounding earthquakes. Water temperature anomaly was mainly marked by negative,morphological characteristics before earthquakes took the form of decline-rise-earthquake,and morphological similarity of anomaly was better. It was not identical for the same earthquake response patterns of water temperature in two earthquakes,the main cause of which was the perturbation of seismic wave,the effect of vibration increased the vertical velocity between different aquifers,which lead to rise or fall phenomenon of water temperature.