从大区域宏观重、磁场特征分析,在徐(州)—宿(州)弧形构造范围内有与周围地区在盖层构造上完全不同的构造形迹特征。本文从这一认识出发,探讨了这一地区的基本构造性质,得出以下的认识:徐—宿弧形构造为一复杂的滑推与推覆构造弧,组成滑推与推覆弧的盖层,为—十分复杂的推覆体。(本文为1984年的研究结果,其中部分认识已得到后来地质工作的初步证实。有关滑推与 From the macroscopic and magnetic field characteristics of the large area, there are completely different structural features of the caprock in the Xu (state) - Suqian (arc) structure. Based on this understanding, this paper explores the basic tectonic properties of this area and draws the following recognition: Xu - Su arc structure is a complex arc of thrusting and nappe tectonics, Layer, for - a very complex nub body. (This article is the result of a 1984 study, some of which have been tentatively confirmed by subsequent geological work.