当前位置：首页 > 过刊浏览->2013年第1\2期合刊
HTML全文
新疆及哈萨克斯坦地震地下流体氦气震兆特征
SEISMIC PRECURSOR FEATURES FOR HELIUM OF UNDERGROUND FLUID IN XINJIANG AND KAZAKHSTAN
- DOI:
- 作者:
- 杨晓芳 崔勇 高小其 张涛 热孜万古力?艾买提
- 作者单位:
- 中国乌鲁木齐830011新疆维吾尔自治区地震局
- 关键词:
- 地震前兆；地下流体；地震预报；异常特征；氦气(He)
Precursor；Underground Fluid；Earthquake Prediction；Anomaly Features；Helium
- 摘要:
-
分析新疆10泉、04泉及哈萨克斯坦卡帕尔-阿拉善4井、下卡姆卡井氦气(He)含量变化的源兆、场兆、远兆的映震特征，氦气(He)变化的地震前兆异常表现为：上升（或下降）幅度、速率变化超出正常范围，具有较好的重复性，测值遵循：背景值-趋势性上升(或突升)-恢复至背景值；趋势性下降(或突降)-恢复至背景值的变化过程。各监测点氦气异常形态、异常持续时间、异常幅度同源兆、场兆、大震远兆没有明显的关系；由于各观测点的水文地质条件和地球化学环境不同，不同监测点氦气映震能力有较大的差异，其中新10号泉和卡帕尔-阿拉善4井氦气的映震能力强于新04泉和下卡姆卡井。
This paper analysis seismic precursor features for helium of No.10、No.4 spring in Xinjiang and No.4 well of Kaparr-Alashan 、Shakamuka well in Kazakhstan. The precursor features for helium shown as ：the rising range and velocity change repeatedly exceeded normal range; background value showed a increasing or decreasing tendency and then recovered. There is not obvious relationship between anomaly curve、anomalous duration、anomalous amplitude of helium and source precursor、field precursor、far-field precursor in each observation point. Because of various hydrogeology condition and geochemical environment, earthquake reflecting ability of helium had a greater difference in some observation point, for instance: No.10 spring and No.4 well of Kaparr-Alashan are far more better than No.4 spring and Shakamuka well.
