Abstract Subsidence and uplift patterns and thermal history of sedimentary basins are controlled by tectonics, mantle dynamics and surface processes, such as erosion, sediment transport and deposition and their links to climatic variations. We use combined thermo-mechanical and stratigraphic numerical modelling techniques to quantify the links between tectonic and surface processes. We aim to assess the thermal evolution and subsidence rates of asymmetric extensional basins during the syn- and post-rift times by simulating different erosion and sedimentation rates. We analyse the 3D sedimentary architecture and facies distribution of the depocenters. Model results are validated by observations in the Pannonian Basin of Central Europe. Extensional reactivation of inherited suture zones creates asymmetric basin systems controlled by large-scale detachments or low-angle normal faults, where crustal and lithospheric mantle thinning are often rheologically decoupled. Subsidence rates and basement heat flow in the depocenters show large variabilities during asymmetric extension and post-rift evolution controlled by their initial position from the suture zone and migration of deformation. Transient heat flow anomalies mirror crustal exhumation of footwalls, sediment blanketing and erosion effects in the basins. Enhanced erosion and sedimentation facilitate lower crustal deformation and elastic flexure of the weak, extended lithosphere leading to accentuated differential uplift and subsidence during the syn- and post-rift basin evolution. Tectonics, climate and autogenic processes control transgressive-regressive cycles at different timescales together with the overall sedimentary facies distribution. In our models assuming wet climate the high subsidence rate often outpaces moments of eustatic water-level fall preventing relative base-level fall and enhances the effects of autogenic processes, such as lobe switching processes.

中文翻译：

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走向地层-热-机械数值模拟：非对称伸展盆地的综合分析

摘要 沉积盆地的沉降、隆升模式和热史受构造、地幔动力学和地表过程的控制，如侵蚀、沉积物输移和沉积及其与气候变化的联系。我们使用组合的热机械和地层数值建模技术来量化构造和地表过程之间的联系。我们的目标是通过模拟不同的侵蚀和沉积速率来评估非对称伸展盆地在同裂谷和裂谷后时期的热演化和沉降速率。我们分析了沉积中心的 3D 沉积结构和相分布。模型结果通过中欧潘诺尼亚盆地的观测得到验证。继承缝合带的伸展再激活产生了由大规模拆离或低角度正断层控制的不对称盆地系统，其中地壳和岩石圈地幔变薄通常在流变学上脱钩。沉积中心的沉降率和基底热流在不对称伸展和裂谷后演化过程中表现出很大的变化，这由它们从缝合带的初始位置和变形迁移控制。瞬态热流异常反映了盆地下盘的地壳剥脱、沉积物覆盖和侵蚀效应。增强的侵蚀和沉积促进了弱的、扩展的岩石圈的下地壳变形和弹性弯曲，导致同和后裂谷盆地演化过程中的差异隆起和沉降加剧。构造学，气候和自生过程控制着不同时间尺度的海进-海退旋回以及整个沉积相分布。在我们假设潮湿气候的模型中，高下沉率通常超过静水位下降的时刻，从而阻止了相对的基础水平下降，并增强了自生过程的影响，例如波瓣转换过程。