氡变化的水(气)载衰变机理
DECAY MECHANISM OF GROUNDWATER(GAS)AS CARRIER OF THE CHANGE IN RADON CONCENTRITIONS
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摘要: 本文根据氡在岩、水、气中分布特征和地震前后在某些活动断层上,地下水(气)的向外释放,提出了水氡、气氡的水(气)载衰变机理。指出水氡、气氡与地下水(气)的流速、岩-水中氡的不均匀分布有关,并从而使它成为映震比较灵敏的组分。在水、气两相流情况下,水氡、气氡浓度还与氡在水、气中的分配有关。同时观测水氡和气氡,可以获得更多的地壳应力应变及其伴生效应的信息。Abstract: Basing on the distribution features of the radon concentritions in the rock, water and gas before and after shocks, and release of groundwater (gas) on some active fauts, we propose a decay mechanism of groundwater (gas) as carrier of change in radon concentritions in water and gas, and point out that the radon concentritions in water and gas are connected with flow rate of groundwater (gas) and non-uniform distribution of radon in rocks and groundwater. Thus, it is suggested as a sensitiver precursor singnal responding to earthquakes. In the case of two-phase flows composed of waterphase and gas-phase, radon concentritions in groundwater and gas also are connected with distribution of radon in water-phase and gas-phase. When radon concentritions in two phases are simultaneously observed, more information on the variation of stress and strain and associated effects can be obtained.
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