Dynamic Modeling of Faulting During Continental Rifting

9814576巴克一个新开发的数值模型使研究人员能够考虑大陆伸展模型中断层的发展和演化。 该模型模拟的是一个弹塑性粘性介质，能够发展局部变形接近故障。 模型模拟的结果在一个不断发展的故障系统的发展。 研究人员建议检查的大小和数量的半地堑单位横跨模型裂谷，断层的大小分布和大小断层容纳的相对延伸，大裂谷边界断层的作用，并扩大或缩小的活动裂谷带通过时间。 他们将把重点放在苏伊士裂谷湾，那里有广泛的数据库和专业知识。 他们还将研究其他裂谷，如东非裂谷，安扎海槽和瓦伦西亚海槽，在那里现有的数据文件断裂过程中的模式。

9814576 Buck A newly-developed numerical model enables the investigators to consider the development and evolution of faults in models of continental extension. The model simulates an elastic-plastic-viscous medium that is capable of developing localized deformation approximating faults. Model simulations result in the development of an evolving system of faults. The investigators propose to examine the size and number of half-graben units across the model rifts, the size distribution of faulting and the relative extension accommodated by large and small faults, the role of large rift-bounding faults, and the widening or narrowing of the active rift zone through time. They will focus on the Gulf of Suez rift for which there is an extensive database and expertise. They will also examine other rifts such as the East African rift, Anza trough, and Valencia trough, where available data document the pattern of faulting during rifting.