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在利用迥折波研究地壳上地幔构造时,τ法是一种新的有效反演方法。鉴于τ法反演的解模型仍存在较大的不确定性,作者提出将τ法与线性反演联合使用的最优化处理,τ法的反演结果与反射波及其它震相的资料,将通过构制初始模型和约束条件被引用到线性反演中以改善解模型的合理性。 本文以1982年门源—渭南地震测深剖面的金堆城炮点观测为例〔1〕,具体介绍初始模型的构制和约束条件的处理方法;并对渭河断陷盆地的深部构造做了简要讨论。
The τ method is a new effective inversion method when studying the structure of the crust and upper mantle by using the folding wave. In view of the large uncertainties in the solution of τ inversion, the authors propose that the optimal combination of τ and linear inversion, the inversion results of τ and the reflection and other seismic phases will be obtained by Constituting the initial model and the constraints are introduced into the linear inversion to improve the rationality of the solution model. In this paper, 1982 Mengyuan - Weinan sounding profiling section of the Jinduicheng point observation as an example [1], the specific introduction of the initial model of the structure and constraints of the processing methods; and deep Weihe rift basin structure made Brief discussion.