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利用有限元数值模拟方法, 分析了地幔热物质侵入到地壳中对大别地区构造应力场、位移场的影响. 数值模拟结果表明: 地幔热侵入体在大别地区上地壳内形成张应力区, 在与扬子板块水平向挤压共同作用下, 造成大别山地区两端挤压、中部拉张的动力环境, 同实际观测到的断层表现一致. 并进一步讨论了过渡区域可能的演化趋势.
Using finite element method, the effect of mantle plume invasion into crust on the tectonic stress field and displacement field in Dabie area is analyzed. Numerical simulation results show that the thermal intrusion of mantle formed a tensile stress zone in the upper crust of the Dabie area, and under the horizontal extrusion with the Yangtze plate, the dynamic environment of the Dabie Mountain area at both ends of the crust and the central stretch was the same as the actual Observed fault performance consistent. And further discussed possible evolutionary trends in transitional areas.