摘要
对 SD- 3A自动测氡仪在山东试验台网运行期间取得的连续逸出氡观测资料进行了全面深入的分析研究。同时为了说明 SD- 3A仪器观测逸出氡资料的一致性和可靠性 ,用FD- 1 0 5K和 FD- 1 2 5测氡仪与 SD- 3A同时取 1 0 0 ml水样进行人工观测 ,其所测的氡浓度一致 ,之后又同时取逸出氡气样进行观测 ,所测逸出氡浓度也一致 ,证明仪器的观测结果是可靠的。说明试验观测期间获得的 1 998年 1 1月初逸出气氡大幅度高值异常是可信的 ,异常结束后发生了距台站 1 0 0 km的清丰 4.0级地震 ,而人工取样观测水氡异常不明显 ,从而证明 SD-3A所测逸出氡的异常信息远远高于人工观测。
The data of escaped radon observed continoususly by SD 3A Auto Radon Detector in Shandong network have been studied and analyzed in this paper.In order to test the identity and reliability of the observed data,we took 100ml water samples respectively for SD 3A,FD 105K and FD 125K Detector,and observed at the same time.The results show the concentration of radon is the same.Then when we observed the released gas radon,the concentration is also consistent.It is proved the observed results of the instrument are reliable.During the period of observation in early November 1998,we catched an anomaly with greatly high values from escaped gas radon,and at the end of the anomaly an Ms4.0 earthquake occurred 100 km away from the station.However the anomaly is not obvious in hand sampling observation,it indicates that the data observed with SD 3A is more reliable than that of hand sampling observation.
出处
《华北地震科学》
2000年第2期12-17,共6页
North China Earthquake Sciences
关键词
水氡
山东
自动测氡仪
逸出氡
地震前兆
water radon
SD 3A auto radon detector
escaped gas radon
