Rheological considerations for the modelling of submarine sliding at Rockall Bank, NE Atlantic Ocean
Rheological considerations for the modelling of submarine sliding at Rockall Bank, NE Atlantic Ocean
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DOI：
10.1063/1.5009552
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发表时间：
2018-02
影响因子：
4.6
通讯作者：
D. Salmanidou;A. Georgiopoulou;S. Guillas;F. Dias
中科院分区：
文献类型：
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作者：
D. Salmanidou;A. Georgiopoulou;S. Guillas;F. Dias
最近的科学研究表明，大西洋东北部的罗科尔浅滩滑坡复合体是由于重复的斜坡破坏而形成的，这些斜坡至少可以分为三个主要阶段。这些滑动事件发生在末次盛冰期期间和之前。这项工作尝试结合滑坡的流变特性对每个滑动事件进行建模。目的是在与现场观察一致的流变学框架下研究每次滑坡的运动学和最终沉积。为此，在目前的工作中，我们使用不同类型的流变模型来计算总减速应力并模拟潜艇故障。宾厄姆流变学和摩擦流变学用于模拟流动行为。这种方法的范围是了解滑坡运动学中两个经典定律的影响。还使用了结合两种体系的流变模型。为了考虑水动力阻力，...
Recent scientific research indicates that the Rockall Bank Slide Complex in the NE Atlantic Ocean has formed as the result of repetitive slope failures that can be distinguished in at least three major phases. These sliding episodes took place during and before the Last Glacial Maximum. This work attempts the modelling of each sliding episode with the incorporation of the landslide’s rheological properties. The objective is to study the landslide kinematics and final deposition of each episode under a rheological framework that comes in agreement with the field observations. To do so in the present work, we use different types of rheological models to compute the total retarding stress and simulate submarine failure. The Bingham rheology and the frictional rheology are used to model the flow behavior. The scope of this approach is to understand the effect of the two classical laws in landslide kinematics. A rheological model that combines the two regimes is also used. To account for the hydrodynamic drag,...