中大機構典藏-NCU Institutional Repository-提供博碩士論文、考古題、期刊論文、研究計畫等下載:Item 987654321/62619
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 68069/68069 (100%)
造访人次 : 23184780      在线人数 : 268
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/62619


    题名: 跨越台灣海峽震測實驗III;Across Taiwan-Strait Explosion Experiment Iii
    作者: 王乾盈;顏宏元
    贡献者: 國立中央大學地球物理研究所
    关键词: 地球科學;防災工程
    日期: 2012-12-01
    上传时间: 2014-03-17 11:52:32 (UTC+8)
    出版者: 行政院國家科學委員會
    摘要: 研究期間:10106~10207;The Taiwan arc-continent collision is one of the most challenged tectonic problems in the world. Both ‘thin-skinned model’ and ‘lithospheric collision model’ have been invoked to explain the geologic and geophysical observations. The thin-skinned tectonics model was proposed by Suppe (1987), which calls for the buildup of a 15-km thick wedge during subduction of the Asian lithosphere. With the improved Taiwan seismic network in 1991, the local earthquake data became adequate for more detailed seismic tomography. The imaged crust under the Central Range can be as deep as 50 km and the general velocity structures under the Central Range are found inconsistent with those of an accretionary wedge. Wu et al. (1997) considered all these data and proposed that a continuous lithospheric deformation model (Molnar et al., 1999), which predicts the deformation extending not only into the lower crust but also into the upper mantle. The integrated research plan TAIGER has been carried out during 2007~2009, including: 1) passive earthquake source broadband seismometer observation, 2) land thousand-kg dynamite explosion, 3) sea-land airgun shooting, 4) MT profile, 5) rock property analysis and dating, 6) theoretical plate collision modeling. At the present time, the data processing is actively undertaken. The preliminary results show that the Moho is deeper in the north (> 40km) than in the south. The thin-skin model could be appropriate for the middle and south Taiwan, but the lithosphere collision model may prevail in the north. The present proposal is an extension of the 2008 experiment. At 2009, the Fujan earthquake administration created a long-term project making a sequence of big explosions (1000~3000kg) to detect crust structures. To catch the explosion signals, we organize the ‘Across Taiwan Strait Explosion Experiment (ATSEE)’ to deploy sea-land instruments to receive the precious signals from the mainland. In ATSEE2010 project, we found very promising Pn signals from the Moho directly under the Central-mountain range using the explosion signals from the mainland (FJ3 line). The largest Moho depth is found to be less than 44 km. In ATSEE2011, five big explosions were set off along the N–line direction (FJ 1 line). Two lines N and NN were deployed on northern Taiwan. A Moho (largest 43km) is detected under the N-line, but it reduced to 40km under the NN-line. In this 2012 proposal, two shot lines, total 10 explosions, will be ignited (FJ2 and FJ4) at the same time. We plan to deploy all three lines (N, M, and S) along previous TAIGER’s lines. Twenty OBS’s will also be deployed in both Taiwan-Strait and the eastern Taiwan offshore to cover a wider Pn range.
    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:[地球物理研究所] 研究計畫

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML387检视/开启


    在NCUIR中所有的数据项都受到原著作权保护.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈  - 隱私權政策聲明