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对日本海西部的对马弧后盆地南部边缘一口勘探井的地质史分析揭露了构造力和沉积负荷对古对马盆地的沉降起主要作用,在晚第三纪时期盆地内沉积了很厚的一层碎屑层。最初的沉降很可能是由于与弧后断裂有关的构造力和与会聚作用有关的扩张引起的。南部边缘经历了区域形变(隆起、断层和褶皱),一直到晚中新世。这个事件可能是由于板块运动和会聚带处的俯冲方式,这两方面的变化引起的。
The analysis of the geological history of an exploration well at the southern edge of the Ma Arc back basins in the western part of Japan revealed that the tectonic force and sedimentation load played a major role in the subsidence of the Paleo-Matang Basin. During the Late Tertiary Period, A layer of debris. The initial subsidence is most likely due to the structural forces associated with the post-arc faulting and to the expansion associated with the convergence. The southern margin underwent regional deformation (uplift, faults and folds) until late Noctls. This event may be due to plate movement and convergence zone at the subduction, these two changes caused.