The Evolution of Normal Fault Systems in Three Dimensions
The Evolution of Normal Fault Systems in Three Dimensions
批准号:
9725372
负责人:
David Pollard
金额:
$5.58万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1998
资助国家:
美国
项目状态:
已结题
起止时间:
1998-01-01 至 1999-12-31
中文摘要
9725372在正常断层系统中,波拉德断层分段在多个尺度上被观察到,分段之间的机械相互作用似乎影响了断层系统的发展。了解这种机械相互作用将提高对正常断层生长和连接方式的理解。系统地研究不同构造应力状态下正断层周围的强扰动将涉及到使用Poly 3D数值代码。结果将包括记录在典型加载条件下单个正断层周围的应力分布和应变,以及两个梯形段之间的相互作用。这些产品将在地震危险性分析和资源勘探方面引起人们的兴趣。
英文摘要
9725372 Pollard Fault segmentation is observed at many scales in normal fault systems and mechanical interaction between the segments appears to influence the development of the fault system. Understanding this mechanical interaction will improve understanding of the manner in which normal faults grow and link. A systematic study of the strong perturbations around normal faults under different tectonic stress regimes will involve use of the numerical code of Poly 3D. Results will include documentation of stress distribution and strain around a single normal fault under typical loading conditions and interactions between two echelon segments. These products will be of interest in seismic hazard analysis and aspects of resource exploration.
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