The plate kinematics of the Iberian plate and their implications on the plate tectonic evolution of the Bay of Biscay during rifting and subsequent opening of the southern North Atlantic continue to be topics of scientific discussion and debate. Constrained by previous plate reconstruction, geophysical, and geological studies, deformable plate tectonic reconstructions of the Bay of Biscay-Parentis rift system are created in this study using the GPlates software. These deformable plate models are used to investigate the kinematics of the Landes High, Le Danois High, and Ebro Block previously recognized as independent continental blocks within deformable regions. A comparison between results calculated via deformable plate models with previously published and newly presented gravity inversion crustal thickness estimates provided a good metric for delineating the most probable plate kinematic scenario for the Bay of Biscay-Parentis system and investigating the effect of the plate kinematic scenarios on the present-day structure. The preferred plate kinematic model implies a transtensional Bay of Biscay-Parentis rift system from the Jurassic to Early Cretaceous, with the onset of significant crustal thinning initiating during the Late Jurassic (∼150 Ma) induced by the motion of the Landes High and its interplay with the Ebro Block. Aside from demonstrating the role of the Landes High and its suggested interplay with structural inheritance on the deformation experienced within the Bay of Biscay, the timing and orientation of regional stress directions, and the velocities induced by the preferred deformable model provide good comparisons with previously calculated subsidence rates.

中文翻译：

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使用可变形板块构造模型研究比斯开湾的板块运动学

伊比利亚板块的板块运动学及其对比斯开湾在北大西洋南部裂谷和随后开放期间板块构造演化的影响继续成为科学讨论和辩论的主题。受先前板块重建、地球物理和地质研究的限制，本研究中使用 GPlates 软件创建了比斯开湾 - Parentis 裂谷系统的可变形板块构造重建。这些可变形板块模型用于研究 Landes 高地、Le Danois 高地和埃布罗地块的运动学，这些地块以前被认为是可变形区域内的独立大陆地块。通过可变形板块模型计算的结果与先前发表的和新提出的重力反演地壳厚度估计值之间的比较为描绘比斯开湾-Parentis 系统最可能的板块运动学情景和研究板块运动学情景对现在的结构。首选的板块运动学模型暗示了从侏罗纪到早白垩世的比斯开湾-Parentis 裂谷系统的张拉湾，在晚侏罗世（~150 Ma）期间，由兰德斯高地运动及其相互作用引起的显着地壳变薄开始与 Ebro 块。除了展示兰德斯高地的作用及其与结构继承对比斯开湾内经历的变形的建议相互作用之外，