台灣西部斷層相關聯活動背斜之研究;Study of Active Fault-Related Anticlines in Western Tawain

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题名:	台灣西部斷層相關聯活動背斜之研究;Study of Active Fault-Related Anticlines in Western Tawain
作者:	黃文正
贡献者:	國立中央大學應用地質研究所
关键词:	地球科學;防災工程
日期:	2012-12-01
上传时间:	2014-03-17 14:26:07 (UTC+8)
出版者:	行政院國家科學委員會
摘要:	研究期間：10108~10207;To assess seismic hazards associated with active anticlines along the deformation front in western Taiwan, it requires deep understanding of the formation of those anticlines. Those anticlines are commonly related to a blind fault beneath them. I intend to make use of abundant geodetic, geologic and geophysical data in western Taiwan and integrate with physical models to explore the possible mechanisms which control the development of the anticlines. I have developed a computer program for simulating folds using a boundary element method (BEM). This computer program enables one to take a mechanism of bed-parallel slip into account for the development of folds including fault-related folds. The importance of the mechanism has been demonstrated for fold growth in many theoretical works but it was rarely taken into account for analyzing the development of crust-scaled fault-related folds. I will start by examining how parameters affect on the fold forms using the BEM computer program and then explore what conditions can generate fault-related folds with a different form. To take more complicated rheology into consideration, I will use a finite-element based commercial software (ABAQUS) to analyze those anticlines as well. The goal of this project is to answer the following questions: 1) what mechanism or mechanisms are involved in the formation of an anticline? 2) Is there a significant difference between shorting rate estimated from previous kinematic model or analogy models and the one from our mechanical models? 3) Could a mechanical model produce a similar fold from and surfacial deformation like recent geodetic measurements? 4) How deep is the upper tip of the underlying fault?
關聯:	財團法人國家實驗研究院科技政策研究與資訊中心
显示于类别:	[應用地質研究所] 研究計畫

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