Based on the principle of isotope tracer in single well, and combing with well-theory of seepage flow, a mathematic model of two-dimension fissure network is proposed in the paper.
在应用单孔同位素示踪原理的基础上，结合地下水渗流井流理论，建立了二维裂隙网络的渗流计算模型。
2
On the basis of principle of uranium-lead isotope system evolution, the viewpoint of uranium mobilized mineralization has been proved;